FEBRUARY 28, 2023

STATEMENT OF ADDITIONAL INFORMATION

CREDIT SUISSE FUNDS

Class A, C and I Shares

This Statement of Additional Information (“SAI”) provides information about each of the Credit Suisse Commodity Return Strategy Fund (the “Commodity Return Strategy Fund”), the Credit Suisse Floating Rate High Income Fund (the “Floating Rate High Income Fund”), the Credit Suisse Strategic Income Fund (the “Strategic Income Fund”), the Credit Suisse Managed Futures Strategy Fund (the “Managed Futures Strategy Fund”) and the Credit Suisse Multialternative Strategy Fund (the “Multialternative Strategy Fund”) (each, a “Fund” and collectively, the “Funds”) that supplements information contained in the Prospectus for the Class A, C and I shares of the Funds, dated February 28, 2023, as amended or supplemented from time to time (the “Prospectus”).

Each Fund’s audited Annual Report dated October 31, 2022, for each class of shares it makes available, which either accompanies this Statement of Additional Information or has previously been provided to the investor to whom this Statement of Additional Information is being sent, is incorporated herein by reference.

This Statement of Additional Information is not itself a prospectus and should be read in conjunction with the Prospectus. Copies of the Prospectus and each Annual Report can be obtained by writing or telephoning:

Credit Suisse Funds
P.O. Box 219916
Kansas City, MO 64121-9916
877-870-2874

The Commodity Return Strategy Fund is a series of Credit Suisse Commodity Strategy Funds. Each of the Floating Rate High Income Fund, the Strategic Income Fund, the Managed Futures Strategy Fund and the Multialternative Strategy Fund, is a series of Credit Suisse Opportunity Funds.

Credit Suisse Asset Management, LLC (“Credit Suisse” or the “Manager”), acts as each Fund’s investment manager. Credit Suisse Asset Management Limited (“Credit Suisse UK”), an affiliate of Credit Suisse, acts as the Strategic Income Fund’s sub-adviser. With respect to the Strategic Income Fund, references herein to “Credit Suisse” or the “Manager” should be interpreted to refer to Credit Suisse and/or Credit Suisse UK, as appropriate.

INVESTMENT OBJECTIVES AND POLICIES

The following information supplements the discussion of the Funds’ investment objectives and policies in the Prospectus. There are no assurances that each Fund will achieve its investment objective(s).

Investment Objectives

The investment objective of the Commodity Return Strategy Fund is to seek total return. The investment objective of the Floating Rate High Income Fund is to seek high current income, and its secondary investment objective is to seek capital appreciation. The investment objective of the Strategic Income Fund is to seek total return. The investment objective of the Managed Futures Strategy Fund is to seek to achieve investments results that correspond generally to the risk and return patterns of managed futures funds. The investment objective of the Multialternative Strategy Fund is to seek positive absolute returns. Each Fund’s investment objective may be changed by its Board of Trustees (referred to herein as the “Board”) without shareholder approval.

Information Regarding Underlying Indices

The Bloomberg Commodity Index Total Return. The Commodity Return Strategy Fund is designed to achieve positive total return relative to the performance of the Bloomberg Commodity Index Total Return (“BCOM Index”). The BCOM Index is a broadly diversified futures index currently composed of futures contracts on 24 physical commodities. The BCOM Index is composed of commodities traded on U.S. exchanges, with the exception of aluminum, nickel and zinc, which trade on the London Metal Exchange, and Brent crude oil, which trades on the Intercontinental Exchange. Unlike equities, which entitle the holder to a continuing stake in a corporation, commodity futures contracts specify a delivery date for the underlying physical commodity. In order to avoid delivery and maintain a long futures position, nearby contracts must be sold and contracts that have not yet reached the delivery period must be purchased. This process is known as “rolling” a futures position, and the BCOM Index is a “rolling index”.

The BCOM Index is designed to be a liquid benchmark for commodity investment, and is weighted using dollar-adjusted liquidity and production data. The BCOM Index relies on data that is internal to the futures markets (liquidity) and external to the futures markets (production) in determining relative weightings. To determine its component weightings, the BCOM Index relies primarily on liquidity data, or the relative amount of trading activity of a particular commodity. Liquidity is an important indicator of the value placed on a commodity by financial and physical market participants. The BCOM Index also relies to a lesser extent on dollar-adjusted production data. Production data, although a useful measure of economic importance, may underestimate the economic significance of storable commodities (e.g., gold) at the expense of relatively non-storable commodities (e.g., live cattle). Production data alone also may underestimate the investment value that financial market participants place on

certain commodities. All data used in both the liquidity and production calculations is averaged over a five-year period.

The BCOM Index is designed to provide diversified exposure to commodities as an asset class, rather than being driven by micro-economic events affecting one commodity market or sector; this approach may provide relatively low levels of volatility, although this cannot be guaranteed.

To ensure that no single commodity or commodity sector dominates the BCOM Index, the BCOM Index relies on several diversification rules. Among these rules are the following:

These diversification rules are applied annually to the BCOM Index, when the BCOM Index is reweighted and rebalanced on a price-percentage basis. Reweighting means that, in general, the BCOM Index may reallocate out of commodities that have appreciated in value and into commodities that have underperformed.

The Commodity Return Strategy Fund is not sponsored, endorsed, sold or promoted by Bloomberg L.P. (“Bloomberg”) or any of its subsidiaries or affiliates. None of Bloomberg or any of its subsidiaries or affiliates makes any representation or warranty, express or implied, to the owners of or investors in the Commodity Return Strategy Fund or any member of the public regarding the advisability of investing in securities or commodities generally or in the Commodity Return Strategy Fund particularly.

Credit Suisse Managed Futures Liquid Index. The Credit Suisse Managed Futures Liquid Index (the “Managed Futures Liquid Index”), which was launched on January 31, 2011, aims to gain broad exposure to a managed futures strategy using a quantitative methodology to invest in a liquid set of futures and commodity index products. The Managed Futures Liquid Index will not include exposure to managed futures strategy hedge funds. The methodology has been pre-determined by an Index Committee, the members of which include personnel of Credit Suisse, and a non-Credit Suisse personnel member. The Managed Futures Liquid Index is rebalanced on a daily basis.

Investment Policies and Strategies

The Prospectus identifies and summarizes the individual types of securities in which each Fund invests as part of its principal investment strategies and the principal risks associated with such investments. The investments, investment policies and investment restrictions set out below supplement those set forth in the Prospectus. Each Fund’s investments must be consistent with its investment objective(s) and policies. Accordingly, not all of the types of securities discussed below are eligible investments for each of the Funds. Each Fund is permitted, but not obligated, to engage in the investment strategies and invest in the investments which are identified as applicable to the Fund in the table below, (and may invest to a de minimis extent in any strategy or investment not specifically identified as applicable to the Fund), subject to any percentage limitations set out in the table. Any percentage limitation on a Fund’s ability to invest in debt securities will not be applicable during periods when the Fund pursues a temporary defensive strategy as discussed below.

Descriptions in this SAI of a particular investment practice or technique in which a Fund may engage or a financial instrument which a Fund may purchase are meant to describe the spectrum of investments that Credit Suisse, in its discretion, may, but is not required to, use in managing the Fund’s portfolio. Furthermore, it is possible that certain types of financial instruments or investment techniques described herein may not, in the judgment of Credit Suisse, be available, permissible, economically feasible or effective for their intended purposes in some or all markets, in which case the Fund would not use them. Certain practices, techniques or instruments may not be principal activities of a Fund but, to the extent employed, could from time to time have a material impact on the Fund’s performance.

Alternative Minimum Tax Bonds

A Fund may invest without limit in “Alternative Minimum Tax Bonds” which are certain bonds issued after August 7, 1986 to finance certain non-governmental activities. While the income from Alternative Minimum Tax Bonds is exempt from regular federal income tax, it is a tax preference item for purposes of the federal individual “alternative minimum tax.” The alternative minimum tax is a special tax that applies to taxpayers who have certain adjustments or tax preference items. Available returns on Alternative Minimum Tax Bonds acquired by a Fund may be lower than those from other municipal obligations acquired by the Fund due to the possibility of federal, state and local alternative minimum or minimum income tax liability on Alternative Minimum Tax Bonds.

Asset-Backed Securities

A Fund may invest in asset-backed securities, which represent participations in, or are secured by and payable from, assets such as motor vehicle installment sales, installment loan contracts, leases of various types of real and personal property and receivables from revolving credit (credit card) agreements. Such assets are securitized through the use of trusts and special purpose corporations. Payments or distributions of principal and interest may be guaranteed up to certain amounts and for a certain time period by a letter of credit or a pool insurance policy issued by a financial institution unaffiliated with the trust or corporation.

Asset-backed securities present certain risks that are not presented by other securities in which a Fund may invest. Automobile receivables generally are secured by automobiles. Most issuers of automobile receivables permit the loan servicers to retain possession of the underlying obligations. If the servicer were to sell these obligations to another party, there is a risk that the purchaser would acquire an interest superior to that of the holders of the asset-backed securities. In addition, because of the large number of vehicles involved in a typical issuance and technical requirements under state laws, the trustee for the holders of the automobile receivables may not have a

proper security interest in the underlying automobiles. Therefore, there is the possibility that recoveries on repossessed collateral may not, in some cases, be available to support payments on these securities. Credit card receivables are generally unsecured, and the debtors are entitled to the protection of a number of state and federal consumer credit laws, many of which give such debtors the right to set off certain amounts owed on the credit cards, thereby reducing the balance due. In addition, there is no assurance that the security interest in the collateral can be realized.

Assignments and Participations

A Fund may invest in fixed and floating rate loans (“Loans”) arranged through private negotiations between a borrowing corporation, government or other entity (a “Borrower”) and one or more financial institutions (“Lenders”). The majority of the Fund’s investments in Loans are expected to be in the form of participations in Loans (“Participations”) and assignments of portions of Loans from third parties (“Assignments”). Participations typically will result in the Fund having a contractual relationship only with the Lender, not with the Borrower. The Fund will have the right to receive payments of principal, interest and any fees to which it is entitled only from the Lender selling the Participation and only upon receipt by the Lender of the payments from the Borrower. In connection with purchasing Participations, the Fund generally will have no right to enforce compliance by the Borrower with the terms of the loan agreement relating to the Loan, nor any rights of set-off against the Borrower, and the Fund may not directly benefit from any collateral supporting the Loan in which it has purchased the Participation. As a result, the Fund will assume the credit risk of both the Borrower and the Lender that is selling the Participation. In the event of the insolvency of the Lender selling a Participation, the Fund may be treated as a general creditor of the Lender and may not benefit from any set-off between the Lender and the Borrower. The Fund will acquire Participations only if the Lender interpositioned between the Fund and the Borrower is determined by Credit Suisse to be creditworthy.

When the Fund purchases Assignments from Lenders, the Fund will acquire direct rights against the Borrower on the Loan. However, since Assignments are generally arranged through private negotiations between potential assignees and potential assignors, the rights and obligations acquired by the Fund as the purchaser of an Assignment may differ from, and be more limited than, those held by the assigning Lender.

There are risks involved in investing in Participations and Assignments. A Fund may have difficulty disposing of them because there is no liquid market for such securities. The lack of a liquid secondary market will have an adverse impact on the value of such securities and on the Fund’s ability to dispose of particular Participations or Assignments when necessary to meet the Fund’s liquidity needs or in response to a specific economic event, such as a deterioration in the creditworthiness of the Borrower. The lack of a liquid market for Participations and Assignments also may make it more difficult for the Fund to assign a value to these securities for purposes of valuing the Fund’s portfolio and calculating its net asset value.

In certain circumstances, Loans may not be deemed to be securities, and in the event of fraud or misrepresentation by a Borrower or an arranger, Lenders and purchasers of interests in Loans, such as a Fund, will not have the protection of the anti-fraud provisions of the federal securities laws, as would be the case for bonds or stocks. Instead, in such cases, Lenders generally rely on the contractual provisions in the Loan agreement itself, and common-law fraud protections under applicable state law.

Below Investment Grade Securities

A Fund may invest in fixed income securities rated below investment grade and in comparable unrated securities (or in financial instruments related to below investment grade securities). Investment in such securities and instruments involves substantial risk. Below investment grade and comparable unrated securities (commonly referred to as “junk bonds” or “high yield securities”) (i) will likely have some quality and protective characteristics that, in the judgment of the rating organization, are outweighed by large uncertainties or major risk exposures to adverse conditions and (ii) are predominantly speculative with respect to the issuer’s capacity to pay interest and repay principal in accordance with the terms of the obligation. The market values of certain of these securities also tend to be more sensitive to individual corporate developments and changes in economic conditions than higher-quality securities. Issuers of such securities are often highly leveraged and may not have more traditional methods of financing available to them so that their ability to service their debt obligations during an economic downturn or during sustained periods of rising interest rates may be impaired. Investors should be aware that ratings are relative and subjective and are not absolute standards of quality.

To the extent a secondary trading market for below investment grade securities does exist, it generally is not as liquid as the secondary market for investment grade securities. The lack of a liquid secondary market, as well as adverse publicity and investor perception with respect to these securities, may have an adverse impact on market price and a Fund’s ability to dispose of particular issues when necessary to meet the Fund’s liquidity needs or in response to a specific economic event such as a deterioration in the creditworthiness of the issuer. The lack of a liquid secondary market for certain securities also may make it more difficult for a Fund to obtain accurate market quotations for purposes of valuing the Fund and calculating its net asset value.

Subsequent to its purchase by a Fund, an issue of securities may cease to be rated or its rating may be reduced below the minimum required for purchase by the Fund. Neither event will require sale of such securities by the Fund, although Credit Suisse will consider such event in its determination of whether the Fund should continue to hold the securities.

The market value of securities rated below investment grade is more volatile than that of investment grade securities. Factors adversely impacting the market value of these securities will adversely impact a Fund’s net asset value. The Fund will rely on the judgment, analysis and experience of Credit Suisse in evaluating the creditworthiness of an issuer. In this evaluation, Credit Suisse will take into consideration, among other things, the issuer’s financial resources, its sensitivity to economic conditions and trends, its operating history, the quality of the issuer’s management and regulatory matters. A Fund may incur additional expenses to the extent it is required to seek recovery upon a default in the payment of principal or interest on its portfolio holdings of such securities.

See Appendix B for a further description of securities ratings.

Distressed Securities. Investment in fixed-income securities (particularly lower-rated fixed-income securities) or loan participations that default or are in risk of default (“Distressed Securities”) is speculative and involves significant risk. Distressed Securities frequently do not produce income while they are outstanding and may require a Fund to bear certain extraordinary expenses in order to protect and recover its investment.

Borrowing

The Commodity Return Strategy Fund may borrow up to 33 1/3% of its total assets for temporary or emergency purposes, including to meet portfolio redemption requests so as to permit the orderly disposition of portfolio securities or to facilitate settlement transactions on portfolio securities. Investments (including roll-overs)

will not be made when borrowings exceed 5% of the Commodity Return Strategy Fund’s net assets. Each of the Floating Rate High Income Fund, the Strategic Income Fund, the Managed Futures Strategy Fund and the Multialternative Strategy Fund may borrow to the extent permitted by the Investment Company Act of 1940, as amended (the “1940 Act”), including borrowing for investment purposes.

Although the principal of such borrowings will be fixed, each Fund’s assets may change in value during the time the borrowing is outstanding. Each Fund expects that some of its borrowings may be made on a secured basis. In such situations, either the custodian will segregate the pledged assets for the benefit of the lender or arrangements will be made with a suitable sub-custodian, which may include the lender.

Certain types of borrowings by a Fund may result in the Fund being subject to covenants in credit agreements relating to asset coverage, portfolio composition requirements and other matters. It is not anticipated that observance of such covenants would impede Credit Suisse from managing the Fund’s portfolio in accordance with the Fund’s investment objective(s) and policies. However, a breach of any such covenants not cured within the specified cure period may result in acceleration of outstanding indebtedness and require a Fund to dispose of portfolio investments at a time when it may be disadvantageous to do so.

Leverage. Borrowing for investment purposes has a leveraging effect because it tends to exaggerate the effect on a Fund’s net asset value per share of any changes in the market value of its portfolio securities. The use of leverage by a Fund creates an opportunity for greater total return, but, at the same time, creates special risks. Borrowings will create interest expenses for a Fund which can exceed the income from the assets purchased with the borrowings. To the extent the income or capital appreciation derived from securities purchased with borrowed funds exceeds the interest the Fund will have to pay on the borrowings, the Fund’s return will be greater than if leverage had not been used. Conversely, if the income or capital appreciation from the securities purchased with such borrowed funds is not sufficient to cover the cost of borrowing, the return to the Fund will be less than if leverage had not been used, and therefore the amount available for distribution to shareholders as dividends and other distributions will be reduced. In the latter case, Credit Suisse in its best judgment nevertheless may determine to maintain the Fund’s leveraged position if it expects that the benefits to the Fund’s shareholders of maintaining the leveraged position will outweigh the current reduced return.

Collateralized Debt Obligations

A Fund may invest in collateralized debt obligations (“CDOs”), which include collateralized bond obligations (“CBOs”), collateralized loan obligations (“CLOs”) and other similarly structured securities. CDOs are types of asset-backed securities. A CBO is ordinarily issued by a trust or other special purpose entity (“SPE”) and is typically backed by a diversified pool of fixed income securities (which may include high risk, below investment grade securities) held by such issuer. A CLO is ordinarily issued by a trust or other SPE and is typically collateralized by a pool of loans, which may include, among others, domestic and non-U.S. senior secured loans, senior unsecured loans, and subordinate corporate loans, including loans that may be rated below investment grade or equivalent unrated loans, held by such issuer. Although certain CDOs may benefit from credit enhancement in the form of a senior-subordinate structure, over-collateralization or bond insurance, such enhancement may not always be present, and may fail to protect a Fund against the risk of loss on default of the collateral. Certain CDO issuers

may use derivatives contracts to create “synthetic” exposure to assets rather than holding such assets directly, which entails the risks of derivative instruments described elsewhere in this SAI. CDOs may charge management fees and administrative expenses, which are in addition to those of a Fund.

For both CBOs and CLOs, the cash flows from the SPE are split into two or more portions, called tranches, varying in risk and yield. The riskiest portion is the “equity” tranche, which bears the first loss from defaults from the bonds or loans in the SPE and serves to protect the other, more senior tranches from default (though such protection is not complete). Since it is partially protected from defaults, a senior tranche from a CBO or CLO typically has higher ratings and lower yields than its underlying securities, and may be rated investment grade. Despite the protection from the equity tranche, CBO or CLO tranches can experience substantial losses due to actual defaults, downgrades of the underlying collateral by rating agencies, forced liquidation of the collateral pool due to a failure of coverage tests, increased sensitivity to defaults due to collateral default and disappearance of protecting tranches, market anticipation of defaults as well as investor aversion to CBO or CLO securities as a class. Interest on certain tranches of a CDO may be paid in kind or deferred and capitalized (paid in the form of obligations of the same type rather than cash), which involves continued exposure to default risk with respect to such payments.

The risks of an investment in a CDO depend largely on the type of the collateral securities and the class of the CDO. Normally, CBOs, CLOs and other CDOs are privately offered and sold, and thus are not registered under the securities laws. As a result, investments in CDOs may be characterized by a Fund as illiquid securities. However, an active dealer market may exist for CDOs, allowing a CDO to qualify for Rule 144A transactions. In addition to the normal risks associated with fixed income securities and asset-backed securities generally discussed elsewhere in this SAI, CDOs carry additional risks including, but not limited to: (i) the possibility that distributions from collateral securities will not be adequate to make interest or other payments; (ii) the risk that the collateral may default or decline in value or be downgraded, if rated by a nationally recognized statistical rating organization (“NRSRO”); (iii) a Fund may invest in tranches of CDOs that are subordinate to other tranches; (iv) the structure and complexity of the transaction and the legal documents could lead to disputes among investors regarding the characterization of proceeds; (v) the investment return achieved by the Fund could be significantly different than those predicted by financial models; (vi) the lack of a readily available secondary market for CDOs; (vii) risk of forced “fire sale” liquidation due to technical defaults such as coverage test failures; and (viii) the CDO’s manager may perform poorly.

Covenant-Lite Loans

A Fund may invest in “covenant-lite” Loans. Certain financial institutions may define “covenant-lite” Loans differently. Covenant-lite Loans may have tranches that contain fewer or no restrictive covenants. The tranche of the covenant-lite Loan that has fewer restrictions typically does not include the legal clauses which allow an investor to proactively enforce financial tests or prevent or restrict undesired actions taken by the borrower/issuer. Covenant-lite Loans also generally give the borrower/issuer more flexibility if it has met certain loan terms and provide fewer investor protections if certain criteria are breached. A Fund may experience relatively greater realized or unrealized losses or delays in enforcing its rights on its holdings of certain covenant-lite Loans than its holdings of non-covenant lite Loans.

In the event of a breach of a covenant in non-covenant lite Loans, lenders may have the ability to intervene and either prevent or restrict actions that may potentially compromise the borrower’s ability to pay or lenders may be in a position to obtain concessions from the borrower in exchange for a waiver or amendment of the specific covenant(s). In contrast, covenant-lite Loans do not always or necessarily offer the same ability to intervene or obtain additional concessions from borrowers/issuers. Covenant-lite corporate Loans, however, may foster a capital structure designed to avoid defaults by giving borrowers or issuers increased financial flexibility when they need it the most.

Collateralized Mortgage Obligations

A Fund may purchase collateralized mortgage obligations (“CMOs”) issued or guaranteed by the U.S. government, its agencies or instrumentalities (including those issued by the Government National Mortgage Association (“GNMA”), Fannie Mae and Freddie Mac) and by private issuers. CMOs are debt obligations that are collateralized by mortgage loans or mortgage pass-through securities (collectively “Mortgage Assets”). Payments of principal of, and interest on, the Mortgage Assets (and in the case of CMOs, any reinvestment income thereon) provide the funds to pay the debt service on the CMOs.

In a CMO, a series of bonds or certificates is issued in multiple classes. Each class of CMO, also referred to as a “tranche,” is issued at a specific fixed or floating coupon rate and has a stated maturity or final distribution date. The principal and interest on the Mortgage Assets may be allocated among the several classes of a CMO in many ways. In one structure, payments of principal, including any principal prepayments, on the Mortgage Assets are applied to the classes of a CMO in the order of their respective stated maturities or final distribution dates so that no payment of principal will be made on any class of the CMO until all other classes having an earlier stated maturity or final distribution date have been paid in full. In some CMO structures, all or a portion of the interest attributable to one or more of the CMO classes may be added to the principal amounts attributable to such classes, rather than passed through to certificateholders on a current basis, until other classes of the CMO are paid in full.

Certain classes of CMOs are structured in a manner that makes them extremely sensitive to changes in prepayment rates. Interest only (“IO”) and principal only (“PO”) classes are examples of this. IOs are entitled to receive all or a portion of the interest, but none (or only a nominal amount) of the principal payments, from the underlying Mortgage Assets. If the mortgage assets underlying an IO experience greater than anticipated principal prepayments, then the total amount of interest payments allocable to the IO class, and therefore the yield to investors, generally will be reduced. In some instances, an investor in an IO may fail to recoup all of his or her initial

investment, even if the security is government issued or guaranteed. Conversely, PO classes are entitled to receive all or a portion of the principal payments, but none of the interest, from the underlying Mortgage Assets. PO classes are purchased at substantial discounts from par, and the yield to investors will be reduced if principal payments are slower than expected. Some IOs and POs, as well as other CMO classes, are structured to have special protections against the effects of prepayments. These structural protections, however, normally are effective only within certain ranges of prepayment rates and thus will not protect investors in all circumstances. Inverse floating rate CMO classes also may be extremely volatile. These classes pay interest at a rate that decreases when a specified index of market rates increases and vice versa.

Parallel pay CMOs are structured to provide payments of principal on each payment date to more than one class. These simultaneous payments are taken into account in calculating the stated maturity date or final distribution date of each class, which, as with other CMO structures, must be retired by its stated maturity date or final distribution date but may be retired earlier.

Some CMO classes are structured to pay interest at rates that are adjusted in accordance with a formula, such as a multiple or fraction of the change in a specified interest rate index, so as to pay at a rate that will be attractive in certain interest rate environments but not in others. For example, an inverse floating rate CMO class pays interest at a rate that increases as a specified interest rate index decreases but decreases as that index increases. For other CMO classes, the yield may move in the same direction as market interest rates— i.e., the yield may increase as rates increase and decrease as rates decrease—but may do so more rapidly or to a greater degree. The market value of such securities generally is more volatile than that of a fixed rate obligation. Such interest rate formulas may be combined with other CMO characteristics. For example, a CMO class may be an inverse IO class, on which the holders are entitled to receive no payments of principal and are entitled to receive interest at a rate that will vary inversely with a specified index or a multiple thereof.

Commodity-Linked Derivatives

A Fund may invest in commodity-linked derivative instruments, such as structured notes, swap agreements, commodity options, futures and options on futures, which are designed to provide exposure to the investment returns of real assets. Real assets are assets such as oil, gas, industrial and precious metals, livestock, and agricultural or meat products, or other items that have tangible properties, as compared to stocks or bonds, which are financial instruments. The value of commodity-linked derivative instruments may be affected by a variety of factors, including, but not limited to, overall market movements and other factors affecting the value of particular industries or commodities, such as weather, disease, embargoes, acts of war or terrorism, or political and regulatory developments.

The prices of commodity-linked derivative instruments may move in different directions than investments in traditional equity and debt securities when the value of those traditional securities is declining due to adverse economic conditions. As an example, during periods of rising inflation, debt securities have historically tended to decline in value due to the general increase in prevailing interest rates. Conversely, during those same periods of rising inflation, the prices of certain commodities, such as oil and metals, have historically tended to increase. Of course, there cannot be any guarantee that derivative instruments will perform in that manner in the future, and at certain times the price movements of commodity-linked instruments have been parallel to those of debt and equity securities.

Commodities have historically tended to increase and decrease in value during different parts of the business cycle than financial assets. Nevertheless, at various times, commodities prices may move in tandem with the prices of financial assets and thus may not provide overall portfolio diversification benefits. The reverse may be true during “bull markets,” when the value of traditional securities such as stocks and bonds is increasing. Under such favorable economic conditions, the Fund’s investments may be expected not to perform as well as an investment in traditional securities. Over the long term, the returns on commodity-linked derivative instruments are expected to exhibit low or negative correlation with stocks and bonds.

A Fund will enter into commodity-linked derivative transactions only with financial institutions experienced with such products that have investment grade credit ratings. In the event such a counterparty’s rating falls below investment grade, Credit Suisse in its discretion will determine whether to dispose of such security.

In selecting investments for the Fund’s portfolio, Credit Suisse evaluates the merits of the investments primarily through the exercise of its own investment analysis. In the case of derivative instruments, that process may include the evaluation of the underlying commodity, futures contract, index or other economic variable that is linked to the instrument, the issuer of the instrument, and whether the principal of the instrument is protected by any form of credit enhancement or guarantee.

Convertible Securities

Convertible securities include both convertible debt and convertible preferred stock, and may be converted at either a stated price or stated rate into underlying shares of common stock. Because of this feature, convertible securities enable an investor to benefit from increases in the market price of the underlying common stock. Convertible securities provide higher yields than the underlying equity securities, but generally offer lower yields than non-convertible securities of similar quality. The value of convertible securities fluctuates in relation to changes in interest rates like bonds and, in addition, fluctuates in relation to the underlying common stock. Subsequent to purchase by a Fund, convertible securities may cease to be rated or a rating may be reduced below the minimum required for purchase by the Fund. Neither event will require sale of such securities, although Credit Suisse will consider such event in its determination of whether the Fund should continue to hold the securities.

Currency Exchange Transactions

The value in U.S. dollars of a Fund’s assets that are invested in securities denominated in currencies other than the U.S. dollar may be affected favorably or unfavorably by a variety of factors not applicable to investment in U.S. securities, and the Fund may incur costs in connection with conversion between various currencies. The rate of exchange between the U.S. dollar and other currencies is determined by the forces of supply and demand in the foreign exchange markets. Changes in the exchange rates may result over time from the interaction of many factors directly or indirectly affecting economic and political conditions in the U.S. and a particular foreign country, including economic and political developments in other countries. Currency exchange transactions may be from any non-U.S. currency into U.S. dollars or into other appropriate currencies. A Fund will conduct its currency exchange transactions (i) on a spot (i.e., cash) basis at the rate prevailing in the currency exchange market, (ii) through entering into currency futures contracts or options on such contracts (as described below), (iii) through entering into forward contracts to purchase or sell currency or (iv) by purchasing exchange-traded currency options. A Fund may engage in currency transactions for both hedging purposes and to increase total return, which may involve speculation.

Currency Hedging. A Fund’s currency hedging will be limited to hedging involving either specific transactions or portfolio positions. Transaction hedging is the purchase or sale of forward currency with respect to specific receivables or payables of a Fund generally accruing in connection with the purchase or sale of its portfolio securities. Position hedging is the sale of forward currency with respect to portfolio security positions. A Fund may not position hedge to an extent greater than the aggregate market value (at the time of entering into the hedge) of the hedged securities.

A decline in the U.S. dollar value of a foreign currency in which a Fund’s securities are denominated will reduce the U.S. dollar value of the securities, even if their value in the foreign currency remains constant. The use of currency hedges does not eliminate fluctuations in the underlying prices of the securities, but it does establish a rate of exchange that can be achieved in the future. For example, in order to protect against diminutions in the U.S. dollar value of non-dollar denominated securities it holds, a Fund may purchase foreign currency put options. If the value of the foreign currency does decline, the Fund will have the right to sell the currency for a fixed amount in dollars and will thereby offset, in whole or in part, the adverse effect on the U.S. dollar value of its securities that otherwise would have resulted. Conversely, if a rise in the U.S. dollar value of a currency in which securities to be acquired are denominated is projected, thereby potentially increasing the cost of the securities, a Fund may purchase call options on the particular currency. The purchase of these options could offset, at least partially, the effects of the adverse movements in exchange rates. The benefit to a Fund derived from purchases of currency options, like the benefit derived from other types of options, will be reduced by premiums and other transaction costs. Because transactions in currency exchange are generally conducted on a principal basis, no fees or commissions are generally involved. Instead, profit to the currency trader is included in the purchase price. Currency hedging involves some of the same risks and considerations as other transactions with similar instruments. Although currency hedges limit

the risk of loss due to a decline in the value of a hedged currency, at the same time, they also limit any potential gain that might result should the value of the currency increase. If a devaluation is generally anticipated, a Fund may not be able to contract to sell a currency at a price above the devaluation level it anticipates.

While the values of currency futures and options on futures, forward currency contracts and currency options may be expected to correlate with exchange rates, they will not reflect other factors that may affect the value of a Fund’s investments and a currency hedge may not be entirely successful in mitigating changes in the value of the Fund’s investments denominated in that currency. A currency hedge, for example, should protect a Yen-denominated bond against a decline in the Yen, but will not protect a Fund against a price decline if the issuer’s creditworthiness deteriorates.

Currency Options. A Fund may purchase exchange-traded put and call options on foreign currencies. Put options convey the right to sell the underlying currency at a price which is anticipated to be higher than the spot price of the currency at the time the option is exercised. Call options convey the right to buy the underlying currency at a price which is expected to be lower than the spot price of the currency at the time the option is exercised.

Forward Currency Contracts. A forward currency contract involves an obligation to purchase or sell a specific currency at a future date, which may be any fixed number of days from the date of the contract as agreed upon by the parties, at a price set at the time of the contract. These contracts are entered into in the interbank market conducted directly between currency traders (usually large commercial banks and brokers) and their customers. Forward currency contracts are similar to currency futures contracts, except that futures contracts are traded on commodities exchanges and are standardized as to contract size and delivery date.

A Fund also may enter into forward currency contracts with respect to specific transactions. For example, when a Fund anticipates the receipt in a foreign currency of interest payments on a security that it holds, the Fund may desire to “lock-in” the U.S. dollar price of the security or the U.S. dollar equivalent of such payment, as the case may be, by entering into a forward contract for the purchase or sale, for a fixed amount of U.S. dollars, of the amount of foreign currency involved in the underlying transaction. The Fund will be able thereby to protect itself against a possible loss resulting from an adverse change in the relationship between the currency exchange rates during the period between the date on which the security is purchased or sold, or on which the payment is declared, and the date on which such payments are made or received.

At or before the maturity of a forward contract entered into to hedge against currency fluctuations with respect to a portfolio security, a Fund may either sell the portfolio security and make delivery of the currency, or retain the security and fully or partially offset its contractual obligation to deliver the currency by negotiating with its trading partner to enter into an offsetting transaction. If the Fund retains the portfolio security and engages in an offsetting transaction, the Fund, at the time of execution of the offsetting transaction, will incur a gain or a loss to the extent that movement has occurred in forward contract prices.

Forward currency contracts are highly volatile, and a relatively small price movement in a forward currency contract may result in substantial losses to a Fund. To the extent a Fund engages in forward currency contracts to generate current income, the Fund will be subject to these risks which the Fund might otherwise avoid (e.g., through use of hedging transactions.)

Delayed Funding Loans and Revolving Credit Facilities

A Fund may enter into, or acquire participations in, delayed funding loans and revolving credit facilities. Delayed funding loans and revolving credit facilities are borrowing arrangements in which the lender agrees to make loans up to a maximum amount upon demand by the borrower during a specified term. A revolving credit facility differs from a delayed funding loan in that as the borrower repays the loan, an amount equal to the repayment may be borrowed again during the term of the revolving credit facility. Delayed funding loans and revolving credit facilities usually provide for floating or variable rates of interest. These commitments may have the effect of requiring the Fund to increase its investment in a company at a time when it might not otherwise decide to do so (including at a time when the company’s financial condition makes it unlikely that such amounts will be repaid). To the extent that a Fund is committed to advance additional funds, it will at all times segregate liquid assets

in an amount sufficient to meet such commitments.

A Fund may invest in delayed funding loans and revolving credit facilities with credit quality comparable to that of issuers of other portfolio investments. Delayed funding loans and revolving credit facilities may be subject to restrictions on transfer, and only limited opportunities may exist to resell such instruments. As a result, the Fund may be unable to sell such investments at an opportune time or may have to resell them at less than fair market value. Delayed funding loans and revolving credit facilities are considered to be debt obligations for purposes of a Fund’s investment restriction relating to the lending of funds or assets by the Fund.

Dollar Rolls

In a “dollar roll,” a Fund sells fixed-income securities for delivery in the current month and simultaneously contracts to repurchase similar but not identical (same type, coupon and maturity) securities on a specified future date. During the roll period, the Fund would forgo principal and interest paid on such securities. The Fund would be compensated by the difference between the current sales price and the forward price for the future purchase, as well as by the interest earned on the cash proceeds of the initial sale.

Dollar rolls involve the risk that the market value of the securities retained in lieu of sale may decline below the price of the securities the Fund has sold but is obligated to repurchase.

Rule 18f-4 under the 1940 Act permits a Fund to enter into when-issued or forward-settling securities (e.g., dollar rolls and firm and standby commitments, including TBA commitments) and nonstandard settlement cycle securities notwithstanding the limitation on the issuance of senior securities in Section 18 of the Investment Company Act, provided that the transaction meets the Delayed-Settlement Securities Provision (as defined below under “--When-Issued Securities and Delayed Delivery Transactions”). If a when-issued, forward-settling or non-standard settlement cycle security does not satisfy the Delayed-Settlement Securities Provision, then it is treated as a derivatives transaction under Rule 18f-4. See “—Regulatory Aspects of Derivatives Instruments — Rule 18f-4 Under the 1940 Act” below.

Emerging Growth and Smaller Capitalization Companies; Unseasoned Issuers

Investing in securities of companies with continuous operations of less than three years (“unseasoned issuers”) may involve greater risks since these securities may have limited marketability and, thus, may be more volatile than securities of larger, more established companies or the market in general. Because such companies normally have fewer shares outstanding than larger companies, it may be more difficult for a Fund to buy or sell significant amounts of such shares without an unfavorable impact on prevailing prices. These companies may have limited product lines, markets or financial resources and may lack management depth. In addition, these companies are typically subject to a greater degree of changes in earnings and business prospects than are larger, more established companies. There is typically less publicly available information concerning these companies than for larger, more established ones.

Although investing in securities of unseasoned issuers offers potential for above-average returns if the companies are successful, the risk exists that the companies will not succeed and the prices of the companies’ shares could significantly decline in value. Therefore, an investment in the Fund may involve a greater degree of risk than an investment in other mutual funds that seek total return by investing in more established, larger companies.

Equity Securities

Equity securities include common stock, preferred stock, securities convertible into common or preferred stock and warrants or rights to acquire common stock, including options. Equity securities are subject to financial and market risks and can be expected to fluctuate in value.

Event-Linked Bonds

Event-linked bonds are fixed income securities for which the return of principal and payment of interest is contingent on the non-occurrence of a specific “trigger” event, such as a hurricane, earthquake, or other physical or weather-related phenomenon. They may be issued by government agencies, insurance companies, reinsurers,

special purpose corporations or other on-shore or off-shore entities. If a trigger event causes losses exceeding a specific amount in the geographic region and time period specified in a bond, a Fund may lose a portion or all of its principal invested in the bond. If no trigger event occurs, the Fund will recover its principal plus interest. For some event-linked bonds, the trigger event or losses may be based on company-wide losses, index-portfolio losses, industry indices, or readings of scientific instruments rather than specified actual losses. Often the event-linked bonds provide for extensions of maturity that are mandatory, or optional at the discretion of the issuer, in order to process and audit loss claims in those cases where a trigger event has, or possibly has, occurred. In addition to the specified trigger events, event-linked bonds may also expose a Fund to certain unanticipated risks including but not limited to issuer (credit) default, adverse regulatory or jurisdictional interpretations, and adverse tax consequences.

Event-linked bonds are a relatively new type of financial instrument. As such, there is no significant trading history for these securities, and there can be no assurance that a liquid market in these instruments will develop. Lack of a liquid market may impose the risk of higher transaction costs and the possibility that a Fund may be forced to liquidate positions when it would not be advantageous to do so. Event-linked bonds are typically rated, and a Fund will only invest in catastrophe bonds that meet the credit quality requirements for the Fund.

Exchange-Traded Notes

Exchange-traded notes (“ETNs”) are generally notes representing debt of the issuer, usually a financial institution. ETNs combine both aspects of bonds and exchange-traded funds (“ETFs”). An ETN’s returns are based on the performance of one or more underlying assets, reference rates or indexes, minus fees and expenses. Similar to ETFs, ETNs are listed on an exchange and traded in the secondary market. However, unlike an ETF, an ETN can be held until the ETN’s maturity, at which time the issuer will pay a return linked to the performance of the specific asset, index or rate (“reference instrument”) to which the ETN is linked minus certain fees. Unlike regular bonds, ETNs do not make periodic interest payments, and principal is not protected.

The value of an ETN may be influenced by, among other things, time to maturity, level of supply and demand for the ETN, volatility and lack of liquidity in underlying markets, changes in the applicable interest rates, the performance of the reference instrument, changes in the issuer’s credit rating and economic, legal, political or geographic events that affect the reference instrument. An ETN that is tied to a reference instrument may not replicate the performance of the reference instrument. ETNs also incur certain expenses not incurred by their applicable reference instrument.

Because the return on the ETN is dependent on the issuer’s ability or willingness to meet its obligations, the value of the ETN may change due to a change in the issuer’s credit rating, despite no change in the underlying reference instrument. The market value of ETN shares may differ from the value of the reference instrument. This difference in price may be due to the fact that the supply and demand in the market for ETN shares at any point in time is not always identical to the supply and demand in the market for the assets underlying the reference instrument that the ETN seeks to track.

There may be restrictions on a Fund’s right to redeem its investment in an ETN, which are generally meant to be held until maturity. A Fund’s decision to sell its ETN holdings may be limited by the availability of a secondary market. An investor in an ETN could lose some or all of the amount invested.

Fixed Income Securities

Fixed income securities are broadly characterized as those that provide for periodic payments to the holder of the security at a stated rate. Most fixed income securities, such as bonds, represent indebtedness of the issuer and provide for repayment of principal at a stated time in the future. Others do not provide for repayment of a principal amount, although they may represent a priority over common stockholders in the event of the issuer’s liquidation. Many fixed income securities are subject to scheduled retirement, or may be retired or “called” by the issuer prior to their maturity dates. The interest rate on certain fixed income securities, known as “variable rate obligations,” is determined by reference to or is a percentage of an objective standard, such as a bank’s prime rate, the 90-day Treasury bill rate, or the rate of return on commercial paper or bank certificates of deposit, and is periodically adjusted. Certain variable rate obligations may have a demand feature entitling the holder to resell the securities at a

predetermined amount. The interest rate on certain fixed income securities, called “floating rate instruments,” changes whenever there is a change in a designated base rate.

The market values of fixed income securities tend to vary inversely with the level of interest rates. When interest rates rise, their values will tend to decline; when interest rates decline, their values generally will tend to rise. The potential for capital appreciation with respect to variable rate obligations or floating rate instruments will be less than with respect to fixed-rate obligations. Long-term instruments are generally more sensitive to these changes than short-term instruments. The market value of fixed income securities and therefore their yield are also affected by the perceived ability of the issuer to make timely payments of principal and interest.

Fixed income securities may be investment grade or below investment grade. “Investment grade” is a designation applied to intermediate and long-term corporate debt securities rated within the highest four rating categories assigned by S&P Global Ratings, a subsidiary of S&P Global Inc. (“S&P”) (AAA, AA, A or BBB, including the + or — designations) or by Moody’s Investors Service, Inc. (“Moody’s”) (Aaa, Aa, A or Baa, including any numerical designations), or, if unrated, considered by Credit Suisse to be of comparable quality. The ability of the issuer of an investment grade debt security to pay interest and to repay principal is considered to vary from extremely strong (for the highest ratings) through adequate (for the lowest ratings given above), although the lower-rated investment grade securities may be viewed as having speculative elements as well.

Those debt securities rated “BBB” or “Baa,” while considered to be “investment grade,” may have speculative characteristics and changes in economic conditions or other circumstances are more likely to lead to a weakened capacity to make principal and interest payments than is the case with higher grade bonds. As a consequence of the foregoing, the opportunities for income and gain may be limited.

Foreign Investments

Investors should recognize that investing in foreign companies involves certain risks, including those discussed below, which are in addition to those associated with investing in U.S. issuers. Individual foreign economies may differ favorably or unfavorably from the U.S. economy in such respects as growth of gross national product, rate of inflation, capital reinvestment, resource self-sufficiency, and balance of payments positions. Many, if not all, of the foregoing considerations apply to investments in securities of foreign governments (or agencies or instrumentalities thereof) as well. The Commodity Return Strategy Fund may invest without limit in U.S. dollar-denominated foreign securities and may invest up to 30% of its assets in non-U.S. dollar denominated securities.

Foreign Currency Exchange. A Fund that invests in securities denominated in currencies other than the U.S. dollar, and a Fund that may temporarily hold funds in bank deposits or other money market investments denominated in foreign currencies, may be affected favorably or unfavorably by exchange control regulations or changes in the exchange rate between such currencies and the dollar. A change in the value of a foreign currency relative to the U.S. dollar will result in a corresponding change in the dollar value of Fund assets denominated in that foreign currency. Changes in foreign currency exchange rates may also affect the value of dividends and interest earned, gains and losses realized on the sale of securities and net investment income and gains, if any, to be distributed to shareholders by the Fund. Unless otherwise contracted, the rate of exchange between the U.S. dollar and other currencies is determined by the forces of supply and demand in the foreign exchange markets. Changes in the exchange rate may result over time from the interaction of many factors directly or indirectly affecting economic and political conditions in the U.S. and a particular foreign country, including economic and political developments in other countries. Governmental intervention may also play a significant role. National governments rarely voluntarily allow their currencies to float freely in response to economic forces. Sovereign governments use a variety of techniques, such as intervention by a country’s central bank or imposition of regulatory controls or taxes, to affect the exchange rates of their currencies. A Fund’s investments may be denominated in currencies of emerging market countries. A Fund may use hedging techniques with the objective of protecting against loss through the fluctuation of the value of foreign currencies against the U.S. dollar, particularly the forward market in foreign exchange, currency options and currency futures.

Information. Many of the foreign securities held by a Fund will not be registered with, nor will the issuers thereof be subject to reporting requirements of, the SEC. Accordingly, there may be less publicly available information about these securities and about the foreign company or government issuing them than is available about a domestic company or government entity. Foreign companies

are generally subject to financial reporting standards, practices and requirements that are either not uniform or less rigorous than those applicable to U.S. companies.

Political Instability. With respect to some foreign countries, there is the possibility of expropriation or confiscatory taxation, limitations on the removal of funds or other assets of a Fund, political or social instability, military action, war or domestic developments which could affect U.S. investments in those and neighboring countries. Any of these actions or events could have a severe effect on security prices and impair a Fund’s ability to bring its capital or income back to the United States. In February 2022, Russia commenced a military attack on Ukraine. The outbreak of hostilities between the two countries and the threat of wider-spread hostilities could have a severe adverse effect on the region and global economies, including significant negative impacts on the markets for certain securities and commodities, such as oil and natural gas. In addition, sanctions imposed on Russia by the United States and other countries, and any sanctions imposed in the future, could have a significant adverse impact on the Russian economy and related markets. The price and liquidity of investments may fluctuate widely as a result of the conflict and related events. How long the armed conflict and related events will last cannot be predicted. These tensions and any related events could have a significant impact on a Fund's performance and the value of a Fund's investments, even beyond any direct exposure the Fund may have to issuers located in these countries.

Foreign Markets. Securities of some foreign companies are less liquid and their prices are more volatile than securities of comparable U.S. companies. Some countries have less-developed securities markets (and related transaction, registration and custody practices). Certain foreign countries are known to experience long delays between the trade and settlement dates of securities purchased or sold which may result in increased exposure to market and foreign exchange fluctuations and increased illiquidity. In addition to losses from such delays, less-developed securities markets could subject the Fund to losses from fraud, negligence or other actions. Economic conditions, such as volatile currency exchange rates and interest rates, political events, military action and other conditions may, without prior warning, lead to the governments of certain countries, or the U.S. Government with respect to certain countries, prohibiting or imposing substantial restrictions through capital controls and/or sanctions on foreign investing in the capital markets or certain industries in those countries. Capital controls and/or sanctions may include the prohibition of, or restrictions on, the ability to own or transfer currency, securities, derivatives or other assets and may also include retaliatory actions of one government against another government, such as seizure of assets. Any of these actions could severely impair a Fund’s ability to purchase, sell, transfer, receive, deliver or otherwise obtain exposure to foreign securities and assets, including the ability to transfer the Fund’s assets or income back into the United States, and could negatively impact the value and/or liquidity of such assets or otherwise adversely affect a Fund’s operations, causing the Fund to decline in value.

Increased Expenses. The operating expenses of a Fund, to the extent it invests in foreign securities, may be higher than that of an investment company investing exclusively in U.S. securities, since the expenses of the Fund, such as the cost of converting foreign currency into U.S. dollars, the payment of fixed brokerage commissions on foreign exchanges, custodial costs, valuation costs and communication costs, may be higher than those costs incurred by other investment companies not investing in foreign securities. In addition, foreign securities may be subject to foreign government taxes that would reduce the net yield on such securities.

Access. Some countries may restrict a Fund’s access to investments or offer terms that are less advantageous than those for local investors. This could limit the attractive investment opportunities available to a Fund.

Europe — Recent Events. A number of countries in Europe have experienced severe economic and financial difficulties. Many non-governmental issuers, and even certain governments, have defaulted on, or been forced to restructure, their debts; many other issuers have faced difficulties obtaining credit or refinancing existing obligations; financial institutions have in many cases required government or central bank support, have needed to raise capital, and/or have been impaired in their ability to extend credit; and financial markets in Europe and elsewhere have experienced extreme volatility and declines in asset values and liquidity. These difficulties may continue, worsen or spread within and outside of Europe. Responses to the financial problems by European governments, central banks and others, including austerity measures and reforms, may not work, may result in social unrest and may limit future growth and economic recovery or have other unintended consequences. Further defaults or restructurings by governments and others of their debt could have additional adverse effects on economies, financial markets and asset valuations around the world. In addition, the United Kingdom (“UK”) has withdrawn from the European Union (“EU”) pursuant to an agreement between the UK and the EU on January 31, 2020. The UK and EU reached an agreement effective January 1, 2021 on the terms of their future trading relationship relating principally to the trading of goods; however, negotiations are ongoing for matters not covered by the agreement, such as the trade of financial services. The longer term economic, legal, political and social framework to be put in place between the UK and the EU remains unclear at this stage and ongoing political and economic uncertainty and periods of exacerbated volatility in both the UK and in wider European markets may continue for some time. In addition, one or more countries may abandon the euro, the common currency of the EU and/or withdraw from the EU. The impact of these actions is not clear but could be significant and far-reaching. These events could negatively affect the value and liquidity of a Fund’s investments.

Depositary Receipts. Assets of a Fund may be invested in the securities of foreign issuers in the form of American Depositary Receipts (“ADRs”), European Depositary Receipts (“EDRs”) and International Depositary Receipts (“IDRs”). These securities may not necessarily be denominated in the same currency as the securities into which they may be converted. ADRs are receipts typically issued by a U.S. bank or trust company which evidence ownership of underlying securities issued by a foreign corporation. EDRs, which are sometimes referred to as Continental Depositary Receipts (“CDRs”), are receipts issued in Europe, and IDRs, which are sometimes referred to as Global Depositary Receipts (“GDRs”), are issued outside the United States. EDRs (CDRs) and IDRs (GDRs) are typically issued by non-U.S. banks and trust companies and evidence ownership of either foreign or domestic securities. Generally, ADRs in registered form are designed for use in U.S. securities markets and EDRs (CDRs) and IDRs (GDRs) in bearer form are designed for use in European and non-U.S. securities markets, respectively. For purposes of the Fund’s investment policies, depositary receipts generally are deemed to have the same classification as the underlying securities they represent. Thus, a depositary receipt representing ownership of common stock will be treated as common stock.

ADRs are publicly traded on exchanges or over-the-counter in the United States and are issued through “sponsored” or “unsponsored” arrangements. In a sponsored ADR arrangement, the foreign issuer assumes the obligation to pay some or all of the depositoary’s transaction fees, whereas under an unsponsored arrangement, the foreign issuer assumes no obligations and the depositary’s transaction fees are paid directly by the ADR holders. In addition, less information is available in the United States about an unsponsored ADR than about a sponsored ADR.

Emerging Markets. Investing in securities of issuers, including governments, located in “emerging market” countries (less developed countries located outside of the United States) involves not only the risks described above with respect to investing in foreign securities, but also other risks, including exposure to economic structures that are generally less diverse and mature than, and to political systems that can be expected to have less stability than, those of developed countries. Emerging markets often face economic problems that could subject the fund to increased volatility or substantial declines in value, and emerging markets may experience periods of market illiquidity. Other characteristics of emerging markets that may affect investment include certain national policies that may restrict investment by foreigners in issuers deemed sensitive to relevant national interests and the absence of developed structures governing private and foreign investments and private property. Deficiencies in regulatory oversight, market infrastructure, shareholder protections and company laws and differences in regulatory, accounting, auditing and financial reporting and recordkeeping standards could expose the fund to risks beyond those generally encountered in developed countries. The typically small size of the markets of securities of issuers located in emerging markets and the possibility of a low or nonexistent volume of trading in those securities may also result in a lack of liquidity and in price volatility of those securities.

Foreign Debt Securities. The returns on foreign debt securities reflect interest rates and other market conditions prevailing in those countries. The relative performance of various countries’ fixed income markets historically has reflected wide variations relating to the unique characteristics of the country’s economy. Year-to-year fluctuations in certain markets have been significant, and negative returns have been experienced in various markets from time to time.

The foreign government securities in which a Fund may invest generally consist of obligations issued or backed by national, state or provincial governments or similar political subdivisions or central banks in foreign countries. Foreign government securities also include debt obligations of supranational entities, which include international organizations designated or backed by governmental entities to promote economic reconstruction or development, international banking institutions and related government agencies. Examples include the International Bank for Reconstruction and Development (the “World Bank”), the Asian Development Bank and the Inter-American Development Bank.

Foreign government securities also include debt securities of “quasi-governmental agencies” and debt securities denominated in multinational currency units of an issuer (including supranational issuers). Debt securities of quasi-governmental agencies are issued by entities owned by either a national, state or equivalent government or are obligations of a political unit that is not backed by the national government’s full faith and credit and general taxing powers.

Issuers of sovereign debt may not be able or willing to repay the principal and/or interest when due in accordance with the terms of such debt. A governmental entity’s willingness or ability to repay principal and interest due in a timely manner may be affected by, among other factors, its cash flow situation, the extent of its foreign reserves, the availability of sufficient foreign exchange on the date a payment is due, the relative size of the debt service burden to the economy as a whole, the governmental entity’s policy towards the International Monetary Fund and the political constraints to which a governmental entity may be subject. Governmental entities may also be dependent on expected disbursements from foreign governments, multilateral agencies and others abroad to reduce principal and interest arrearages on their debt. The commitment on the part of these governments, agencies and others to make such disbursements may be conditioned on the implementation of economic reforms and/or economic performance and the timely service of such debtor’s obligations. Failure to implement such reforms, achieve such levels of economic performance or repay principal or interest when due may result in the cancellation of such third parties’ commitments to lend funds to the governmental entity, which may further impair such debtor’s ability or willingness to timely service its debts. Consequently, governmental entities may default on their sovereign debt.

Holders of sovereign debt may be requested to participate in the rescheduling of such debt and to extend further loans to governmental entities. In the event of a default by a governmental entity, there may be few or no effective legal remedies for collecting on such debt.

Privatizations. A Fund may invest in privatizations (i.e., foreign government programs of selling interests in government-owned or controlled enterprises). The ability of U.S. entities, such as a Fund, to participate in privatizations may be limited by local law, or the terms for participation may be less advantageous than for local investors. There can be no assurance that privatization programs will be available or successful.

Futures Contracts

A Fund may enter into commodity, foreign currency, interest rate and/or commodity or securities index futures contracts and purchase and write (sell) related options traded on exchanges designated by the Commodity Futures Trading Commission (the “CFTC”) or, consistent with CFTC regulations, on foreign exchanges. Certain Funds invest in futures contracts on individual commodities or a subset of commodities and options on them through a Subsidiary (as defined below). These futures contracts are standardized contracts for the future delivery of foreign currency or an interest rate sensitive security or, in the case of stock index and certain other futures contracts, a cash settlement with reference to a specified multiplier times the change in the specified index, exchange rate or interest rate. An option on a futures contract gives the purchaser the right, in return for the premium paid, to assume a position in a futures contract. Each Fund reserves the right to engage in transactions involving futures contracts and options on futures contracts in accordance with the Fund’s policies.

A commodity futures contract provides for the future sale by one party and the purchase by the other party of a specified amount of a commodity, such as an energy, agricultural or metal commodity, at a specified price, date, time and place. A foreign currency futures contract provides for the future sale by one party and the purchase by the other party of a certain amount of a specified non-U.S. currency at a specified price, date, time and place. An interest rate futures contract provides for the future sale by one party and the purchase by the other party of a certain amount of a specific interest rate sensitive financial instrument (debt security) at a specified price, date, time and place. Securities and commodities indexes are capitalization weighted indexes that reflect the market value of the securities or commodities, respectively, represented in the indexes. A securities index or commodities index futures contract is an agreement to be settled by delivery of an amount of cash equal to a specified multiplier times the difference between the value of the index at the close of the last trading day on the contract and the price at which the agreement is made. The clearing house of the exchange on which a futures contract is entered into becomes the counterparty to each purchaser and seller of the futures contract.

No consideration is paid or received by a Fund upon entering into a futures contract. Instead, the Fund is required to segregate with its custodian an amount of cash or securities acceptable to the broker equal to approximately 1% to 10% of the contract amount (this amount is subject to change by the exchange on which the contract is traded, and brokers may charge a higher amount). This amount is known as “initial margin” and is in the nature of a performance bond or good faith deposit on the contract which is returned to the Fund upon termination of the futures contract, assuming all contractual obligations have been satisfied. The broker will have access to amounts in the margin account if the Fund fails to meet its contractual obligations. Subsequent payments, known as “variation margin,” to and from the broker, will be made daily as the currency, financial instrument or securities index underlying the futures contract fluctuates, making the long and short positions in the futures contract more or less valuable, a process known as “marking-to-market.” As a result of the small margin deposit that is required, a small change in the market price of a futures contract can produce major losses. A Fund will also incur brokerage costs in connection with entering into futures contracts.

At any time prior to the expiration of a futures contract, a Fund may elect to close the position by taking an opposite position, which will operate to terminate the Fund’s existing position in the contract. Positions in futures contracts and options on futures contracts (described below) may be closed out only on the exchange on which they were entered into (or through a linked exchange). No secondary market for such contracts exists. Although a Fund may enter into futures contracts only if there is an active market for such contracts, there is no assurance that an active market will exist at any particular time. Most futures exchanges limit the amount of fluctuation permitted in futures contract prices during a single trading day. Once the daily limit has been reached in a particular contract, no trades may be made that day at a price beyond that limit or trading may be suspended for specified periods during the day. It is possible that futures contract prices could move to the daily limit for several consecutive trading days with little or no trading, thereby preventing prompt liquidation of futures positions at an advantageous price and subjecting the Fund to substantial losses. In such event, and in the event of adverse price movements, the Fund would be required to make daily cash payments of variation margin. In such situations, if the Fund had insufficient

cash, it might have to sell securities to meet daily variation margin requirements at a time when it would be disadvantageous to do so. In addition, if the transaction is entered into for hedging purposes, in such circumstances the Fund may realize a loss on a futures contract or option that is not offset by an increase in the value of the hedged position. Losses incurred in futures transactions and the costs of these transactions will affect the Fund’s performance.

Despite the daily price limits on the futures exchanges, the price volatility of commodity futures contracts has been historically greater than that for traditional securities such as stocks and bonds. To the extent that a Fund invests in commodity futures contracts, the assets of the Fund, and therefore the prices of Fund shares, may be subject to greater volatility.

There are additional factors associated with commodity futures contracts which may subject a Fund’s investments in them to greater volatility than investments in traditional securities. Unlike the financial futures markets, in the commodity futures markets there are costs of physical storage associated with purchasing the underlying commodity. The price of the commodity futures contract will reflect the storage costs of purchasing the physical commodity, including the time value of money invested in the physical commodity. To the extent that the storage costs for an underlying commodity change while a Fund is invested in futures contracts on that commodity, the value of the futures contract may change proportionately. In the commodity futures markets, producers of the underlying commodity may decide to hedge the price risk of selling the commodity by selling futures contracts today to lock in the price of the commodity at delivery tomorrow. In order to induce speculators to purchase the other side of the same futures contract, the commodity producer generally must sell the futures contract at a lower price than the expected future spot price of the commodity. Conversely, if most hedgers in the futures market are purchasing futures contracts to hedge against a rise in prices, then speculators will only sell the other side of the futures contract at a higher futures price than the expected future spot price of the commodity. The changing nature of the hedgers and speculators in the commodities markets will influence whether futures prices are above or below the expected future spot price, which can have significant implications for the Fund. If the nature of hedgers and speculators in futures markets has shifted when it is time for the Fund to reinvest the proceeds of a maturing futures contract in a new futures contract, a Fund might reinvest at higher or lower futures prices, or choose to pursue other investments. The commodities which underlie commodity futures contracts may be subject to additional economic and non-economic variables, such as drought, floods, weather, livestock disease, embargoes, tariffs, and international economic, political and regulatory developments. These factors may have a larger impact on commodity prices and commodity-linked instruments, including futures contracts, than on traditional securities. Certain commodities are also subject to limited pricing flexibility because of supply and demand factors. Others are subject to broad price fluctuations as a result of the volatility of the prices for certain raw materials and the instability of the supplies of other materials.

Futures contracts and forward contracts achieve the same economic effect: both are an agreement to purchase a specified amount of a specified asset at a specified future date for a price agreed-upon today. However, there are significant differences in the operation of the two contracts. Forward contracts are individually negotiated transactions and are not exchange traded. Therefore, with a forward contract, the Fund would make a commitment to carry out the purchase or sale of the underlying asset at expiration.

For example, if the Fund were to buy a forward contract to purchase a certain currency at a set price for delivery in three months’ time and then, two months later, the Fund wished to liquidate that position, it would contract for the sale of the currency at a new price for delivery in one month’s time. At expiration of both forward contracts, the Fund would be required to buy the currency at the set price under the first forward contract and sell it at the agreed-upon price under the second forward contract. Even though the Fund has effectively offset its currency position with the purchase and sale of the two forward contracts, it must still honor the original commitment at maturity of the two contracts. By contrast, futures exchanges have central clearinghouses which keep track of all positions. To offset a long position in a futures contract, the Fund simply needs to sell a similar contract on the exchange. The exchange clearinghouse will record both the original futures contract purchase and the offsetting sale, and there is no further commitment on the part of the Fund.

Only a very small percentage of commodity futures contracts result in actual delivery of the underlying commodity. Additionally, any gain or loss on the purchase and sale of the futures contracts is recognized

immediately upon the offset, while with a forward contract, profit or loss is recognized upon maturity of the forward contracts.

Options on Futures Contracts. A Fund may purchase and write put and call options on foreign currency, interest rate and stock and commodity index futures contracts and may enter into closing transactions with respect to such options to terminate existing positions. There is no guarantee that such closing transactions can be effected; the ability to establish and close out positions on such options will be subject to the existence of a liquid market.

An option on a currency, interest rate or commodity or securities index futures contract, as contrasted with the direct investment in such a contract, gives the purchaser the right, in return for the premium paid, to assume a position in a futures contract at a specified exercise price at any time prior to the expiration date of the option. The writer of the option is required upon exercise to assume an offsetting futures position (a short position if the option is a call and a long position if the option is a put). Upon exercise of an option, the delivery of the futures position by the writer of the option to the holder of the option will be accompanied by delivery of the accumulated balance in the writer’s futures margin account, which represents the amount by which the market price of the futures contract exceeds, in the case of a call, or is less than, in the case of a put, the exercise price of the option on the futures contract. The potential loss related to the purchase of an option on a futures contract is limited to the premium paid for the option (plus transaction costs). Because the value of the option is fixed at the point of sale, there are no daily cash payments by the purchaser to reflect changes in the value of the underlying contract; however, the value of the option does change daily and that change would be reflected in the net asset value of a Fund.

Hedging Generally

A Fund may enter into options and futures transactions for several purposes, including generating current income to offset expenses or increase return, and as hedges to reduce investment risk, generally by making an investment expected to move in the opposite direction of a portfolio position. A hedge is designed to offset a loss in a portfolio position with a gain in the hedged position; at the same time, however, a properly correlated hedge will result in a gain in the portfolio position being offset by a loss in the hedged position. As a result, the use of options and futures transactions for hedging purposes could limit any potential gain from an increase in the value of the position hedged. In addition, the movement in the portfolio position hedged may not be of the same magnitude as movement in the hedge. With respect to futures contracts, since the value of portfolio securities will far exceed the value of the futures contracts sold by the Fund, an increase in the value of the futures contracts could only mitigate, but not totally offset, the decline in the value of the Fund’s assets.

In hedging transactions based on an index, whether a Fund will realize a gain or loss depends upon movements in the level of securities prices in the stock market generally or, in the case of certain indexes, in an industry or market segment, rather than movements in the price of a particular security. The risk of imperfect correlation increases as the composition of the Fund’s portfolio varies from the composition of the index. In an effort to compensate for imperfect correlation of relative movements in the hedged position and the hedge, the Fund’s hedge positions may be in a greater or lesser dollar amount than the dollar amount of the hedged position. Such “over hedging” or “under hedging” may adversely affect the Fund’s net investment results if the markets do not move as anticipated when the hedge is established. Securities index futures transactions may be subject to additional correlation risks. First, all participants in the futures market are subject to margin deposit and maintenance requirements. Rather than meeting additional margin deposit requirements, investors may close futures contracts through offsetting transactions which would distort the normal relationship between the securities index and futures markets. Secondly, from the point of view of speculators, the deposit requirements in the futures market are less onerous than margin requirements in the securities market. Therefore, increased participation by speculators in the futures market also may cause temporary price distortions. Because of the possibility of price distortions in the futures market and the imperfect correlation between movements in the securities index and movements in the price of securities index futures, a correct forecast of general market trends by Credit Suisse still may not result in a successful hedging transaction.

A Fund will engage in hedging transactions only when deemed advisable by Credit Suisse, and successful use by the Fund of hedging transactions will be subject to Credit Suisse’s ability to predict trends in currency, interest rate or securities markets, as the case may be, and to predict correctly movements in the directions of the hedge and the hedged position and the correlation between them, which predictions could prove to be inaccurate.

This requires different skills and techniques than predicting changes in the price of individual securities, and there can be no assurance that the use of these strategies will be successful. Even a well-conceived hedge may be unsuccessful to some degree because of unexpected market behavior or trends. Losses incurred in hedging transactions and the costs of these transactions will affect the Fund’s performance.

To the extent that a Fund engages in commodity-linked derivatives and in the strategies described herein, the Fund may experience losses greater than if these strategies had not been utilized.  In addition to the risks described, these instruments may lack liquidity and/or be subject to trading limits, and the Fund may be unable to close out a position without incurring substantial losses, if at all.  The Fund is also subject to the risk of a default by a counterparty to an over-the-counter (“OTC”) transaction.

Illiquid Investments

Pursuant to the Liquidity Rule (as defined below), each Fund may not acquire any illiquid investment if, immediately after the acquisition, the Fund would have invested more than 15% of its net assets in illiquid investments. An illiquid investment is any investment that a Fund reasonably expects cannot be sold in seven calendar days or less without significantly changing the market value of the investment. If illiquid investments exceed 15% of a Fund’s net assets, the Liquidity Rule (as defined below) and the Liquidity Program (as defined below) will require that certain remedial actions be taken. Illiquid investments may trade at a discount from comparable liquid investments. Investment of a Fund’s assets in illiquid investments may restrict the ability of the Fund to dispose of its investments in a timely fashion and for a fair price as well as its ability to take advantage of market opportunities. The risks associated with illiquidity will be particularly acute where a Fund’s operations require cash, such as when the Fund redeems shares or pays dividends, and could result in the Fund borrowing to meet short-term cash requirements, incurring capital losses on the sale of illiquid investments or selling liquid securities, resulting in illiquid securities becoming a larger portion of the Fund's holdings. Liquid investments may become illiquid after purchase by the Fund, particularly during periods of market turmoil. There can be no assurance that a security or instrument that is deemed to be liquid when purchased will continue to be liquid for as long as it is held by the Fund, and any security or instrument held by the Fund may be deemed an illiquid investment pursuant to the Fund’s Liquidity Program.

Investment Grade Securities

Investment grade debt securities are rated in one of the four highest rating categories by Moody’s or S&P, or if unrated, are determined by Credit Suisse to be of comparable quality. If a debt security receives different ratings from Moody’s, S&P, or another nationally recognized statistical rating organization, Credit Suisse will treat the debt security as being rated in the highest of the rating categories. Moody’s considers debt securities rated Baa (its lowest investment grade rating) to have speculative characteristics. This means that changes in economic conditions or other circumstances are more likely to lead to a weakened capacity to make principal and interest payments than is the case for higher rated bonds.

Moody’s and S&P are private services that provide ratings of the credit quality of debt securities and certain other securities. A description of the ratings assigned to corporate bonds by Moody’s and S&P is included in Appendix B to this SAI.

Credit ratings attempt to evaluate the safety of principal and interest payments, but they do not evaluate the volatility of a debt security’s value or its liquidity and do not guarantee the performance of the issuer. Rating agencies may fail to make timely changes in credit ratings in response to subsequent events, so that an issuer’s current financial condition may be better or worse than the rating indicates. There is a risk that rating agencies may downgrade a debt security’s rating. Subsequent to a security’s purchase by a Fund, it may cease to be rated or its rating may be reduced below the minimum rating required for purchase by the Fund. Neither event will require the sale of such securities, although Credit Suisse will consider such event in its determination of whether a Fund should continue to hold the security. Credit Suisse may use these ratings in determining whether to purchase, sell or hold a security. It should be emphasized, however, that ratings are general and are not absolute standards of quality. Consequently, bonds with the same maturity, interest rate and rating may have different market prices.

Payments received by a Fund in lieu of any dividends paid on the loaned securities will not be treated as “qualified dividend income” for purposes of determining what portion of a Fund’s dividends received by individuals may be taxed at the rates generally applicable to long-term capital gains (see “Additional Information Concerning Taxes” below).

Investments in the Subsidiary

Each of the Commodity Return Strategy Fund, the Managed Futures Strategy Fund and the Multialternative Strategy Fund may invest up to 25% of its total assets in the shares of its wholly-owned and controlled subsidiary (each, a “Subsidiary”). Credit Suisse Cayman Commodity Fund I, Ltd. is the Commodity Return Strategy Fund’s Subsidiary, Credit Suisse Cayman Managed Futures Strategy Fund, Ltd. is the Managed Futures Strategy Fund’s Subsidiary, and Credit Suisse Cayman Multialternative Strategy Fund, Ltd. is the Multialternative Strategy Fund’s Subsidiary.

Investments in its Subsidiary are expected to provide a Fund with exposure to the commodity markets within the limitations of Subchapter M of the Internal Revenue Code of 1986, as amended (the “Code”), as discussed under “Additional Information Concerning Taxes—Special Tax Considerations— Tax Treatment of Commodity-Linked Swaps.” Each Subsidiary is advised by Credit Suisse. Each Subsidiary (unlike each Fund) may invest without limitation in commodity-linked swap agreements and other commodity-linked derivative instruments, including futures contracts on individual commodities or a subset of commodities and options on them. However, each Subsidiary is otherwise generally subject to the same fundamental, non-fundamental and certain other investment restrictions as the applicable Fund, including the timing and method of the valuation of the Subsidiary’s portfolio investments and shares of the Subsidiary.  Each Subsidiary is managed pursuant to compliance policies and procedures that are the same, in all material respects, as the policies and procedures adopted by the applicable Fund.  Each Subsidiary is a company organized under the laws of the Cayman Islands, and is overseen by its own board of directors. A Fund is the sole shareholder of its Subsidiary, and it is not currently expected that shares of the Subsidiary will be sold or offered to other investors.

Each Subsidiary invests primarily in commodity-linked derivative instruments, including swap agreements, commodity options, futures and options on futures. Although a Fund may enter into these commodity-linked derivative instruments directly, the Fund will likely gain exposure to these derivative instruments indirectly by investing in another Credit Suisse Fund or investing in its Subsidiary.  Each Subsidiary will also invest in fixed income instruments, some of which are intended to serve as margin or collateral for the Subsidiary’s derivatives positions.

The derivative instruments in which the Commodity Return Strategy Fund and its Subsidiary primarily intend to invest are instruments linked to one or more commodity indices, or derivative instruments linked to the value of a particular commodity or commodity futures contract, or a subset of commodities or commodity futures contracts, including swaps on commodity futures. The Commodity Return Strategy Fund’s, or its Subsidiary’s investments in commodity-linked derivative instruments may specify exposure to commodity futures with different roll dates, reset dates or contract months than those specified by a particular commodity index. As a result, the commodity-linked derivatives component of the Fund’s portfolio may deviate from the returns of any particular commodity index. the Commodity Return Strategy Fund or its Subsidiary may also over-weight or under-weight its exposure to a particular commodity index, or a subset of commodities, such that the Fund has greater or lesser exposure to that index than the value of the Fund’s net assets, or greater or lesser exposure to a subset of commodities than is represented by a particular commodity index. Such deviations will frequently be the result of temporary market fluctuations, and under normal circumstances the Commodity Return Strategy Fund will seek to maintain net notional exposure to one or more commodity indices within 5% (plus or minus) of the value of its net assets. The portion of the Commodity Return Strategy Fund’s or its Subsidiary’s assets exposed to any particular commodity or commodity sector will vary based on market conditions, but from time to time the portion could be substantial. To the extent that a Fund invests in its Subsidiary, it may be subject to the risks associated with those derivative instruments and other securities discussed above.

Each Subsidiary has an investment management agreement with Credit Suisse pursuant to which Credit Suisse manages the assets of the Subsidiary, but receives no additional compensation for doing so. Each Subsidiary also has entered into a co-administration agreement with Credit Suisse, pursuant to which Credit Suisse or such affiliate provides certain administrative services for the Subsidiary, but receives no additional compensation for doing so. Each Subsidiary has also entered into separate contracts for the provision of custody, transfer agency, and accounting agent services with the same or with affiliates of the same service providers that provide those services to the Funds.

The financial statements of each Subsidiary are consolidated with the applicable Fund’s financial statements, which are included in the Fund’s annual and semi-annual reports provided to Fund shareholders. Copies of the reports will be provided without charge upon request as indicated on the front cover of this SAI.

Each Subsidiary is not registered under the 1940 Act, and, unless otherwise noted in the Prospectus or this SAI, is not subject to all the investor protections of the 1940 Act. However, each Fund wholly owns and controls its Subsidiary, and the Fund and the Subsidiary are both managed by Credit Suisse, making it unlikely that the Subsidiary will take action contrary to the interests of the Fund and its shareholders. The Board has oversight responsibility for the investment activities of each Fund, including its investment in its Subsidiary, and the Fund’s role as sole shareholder of the Subsidiary. As noted above, each Subsidiary will generally be subject to the same investment restrictions and limitations, and follow the same compliance policies and procedures, as the applicable Fund. In addition, changes in the laws of the United States and/or the Cayman Islands could result in the inability of

a Fund and/or its Subsidiary to operate as described in the Prospectus and the SAI and could adversely affect the Fund. For example, the Cayman Islands does not currently impose any income, corporate or capital gains tax, estate duty, inheritance tax, gift tax or withholding tax on the Subsidiary. If Cayman Islands law changes such that a Subsidiary must pay Cayman Islands taxes, Fund shareholders would likely suffer decreased investment returns.

Lending of Portfolio Securities

A Fund may lend portfolio securities to brokers, dealers and other financial organizations that meet capital and other credit requirements or other criteria established by the Board. These loans, if and when made, may not exceed 33 1/3% of a Fund’s total assets taken at value (including the loan collateral). Loans of portfolio securities will be collateralized by cash or liquid securities, which are maintained at all times in an amount equal to at least 100% of the current market value of the loaned securities. Any gain or loss in the market price of the securities loaned that might occur during the term of the loan would be for the account of a Fund. From time to time, a Fund may return a part of the interest earned from the investment of collateral received for securities loaned to the borrower and/or a third party that is unaffiliated with the Fund and that is acting as a “finder.”

By lending its securities, a Fund can increase its income by continuing to receive interest and any dividends on the loaned securities as well as by either investing the collateral received for securities loaned in short-term instruments or obtaining yield in the form of interest paid by the borrower when U.S. government securities are used as collateral. A Fund will adhere to the following conditions whenever its portfolio securities are loaned: (i) the Fund must receive at least 100% cash collateral or equivalent securities of the type discussed in the preceding paragraph from the borrower; (ii) the borrower must increase such collateral whenever the market value of the securities rises above the level of such collateral; (iii) the Fund must be able to terminate the loan at any time; (iv) the Fund must receive reasonable interest on the loan, as well as any dividends, interest or other distributions on the loaned securities and any increase in market value; (v) the Fund may pay only reasonable custodian fees in connection with the loan; and (vi) voting rights on the loaned securities may pass to the borrower, provided, however, that if a material event adversely affecting the investment occurs, the Fund must terminate the loan and regain the right to vote the securities. Loan agreements involve certain risks in the event of default or insolvency of the other party including possible delays or restrictions upon a Fund’s ability to recover the loaned securities or dispose of the collateral for the loan. Default by or bankruptcy of a borrower would expose a Fund to possible loss because of adverse market action, expenses and/or delays in connection with the disposition of underlying securities. A Fund also could lose money if its short-term investment of the cash collateral declines in value over the period of the loan. Any loans of a Fund’s securities will be fully collateralized and marked to market daily.

Payments received by a Fund in lieu of any dividends paid on the loaned securities will not be treated as “qualified dividend income” for purposes of determining what portion of the Fund’s dividends received by individuals may be taxed at the rates generally applicable to long-term capital gains (see “Additional Information Concerning Taxes” below).

Mezzanine Investments

A Fund may invest in certain high yield securities known as mezzanine investments, which are subordinated debt securities that are generally issued in private placements in connection with an equity security (e.g., with attached warrants). Such mezzanine investments may be issued with or without registration rights. Similar to other high yield securities, maturities of mezzanine investments are typically seven to ten years, but the expected average life is significantly shorter at three to five years. Mezzanine investments are usually unsecured and subordinate to other obligations of the issuer.

Money Market Instruments

Money market instruments are short-term instruments that consist of obligations issued or guaranteed by the U.S. government, its agencies or instrumentalities (“Government Securities”); bank obligations (including certificates of deposit, time deposits and bankers’ acceptances of domestic or foreign banks, domestic savings and loans and similar institutions) that are high quality investments or, if unrated, deemed by Credit Suisse to be high quality investments; commercial paper rated no lower than A-2 by S&P, or Prime-2 by Moody’s, or the equivalent from another major rating service or, if unrated, of an issuer having an outstanding, unsecured debt issue then rated

within the three highest rating categories; obligations of foreign governments, their agencies or instrumentalities; and repurchase agreements with respect to portfolio securities. A description of S&P’s and Moody’s ratings is in Appendix B to this SAI.

Mortgage-Backed Securities

A Fund may invest in mortgage-backed securities, such as those issued by GNMA, Fannie Mae, Freddie Mac and certain foreign issuers, as well as non-governmental issuers. Non-government issued mortgage-backed securities may offer higher yields than those issued by government entities, but may be subject to greater price fluctuations. Mortgage-backed securities represent direct or indirect participations in, or are secured by and payable from, mortgage loans secured by real property. These securities generally are “pass-through” instruments, through which the holders receive a share of all interest and principal payments from the mortgages underlying the securities, net of certain fees. Some mortgage-backed securities, such as CMOs, make payouts of both principal and interest at a variety of intervals; others make semiannual interest payments at a predetermined rate and repay principal at maturity (like a typical bond). The mortgages backing these securities include, among other mortgage instruments, conventional 30-year fixed-rate mortgages, 15-year fixed-rate mortgages, graduated payment mortgages and adjustable rate mortgages. The government or the issuing agency typically guarantees the payment of interest and principal of these securities. However, the guarantees do not extend to the securities’ yield or value, which are likely to vary inversely with fluctuations in interest rates, nor do the guarantees extend to the yield or value of a Fund’s shares.

Yields on pass-through securities are typically quoted by investment dealers and vendors based on the maturity of the underlying instruments and the associated average life assumption. The average life of pass-through pools varies with the maturities of the underlying mortgage loans. A pool’s term may be shortened by unscheduled or early payments of principal on the underlying mortgages. The occurrence of mortgage prepayments is affected by various factors, including the level of interest rates, general economic conditions, the location, scheduled maturity and age of the mortgage and other social and demographic conditions. Because prepayment rates of individual pools vary widely, it is not possible to predict accurately the average life of a particular pool. For pools of fixed-rate 30-year mortgages in a stable fixed-rate environment, a common industry practice in the U.S. has been to assume that prepayments will result in a 12-year average life. At present, pools, particularly those with loans with other maturities or different characteristics, are priced on an assumption of average life determined for each pool. In periods of falling interest rates, the rate of prepayment tends to increase, thereby shortening the actual average life of a pool of mortgage-related securities. Conversely, in periods of rising rates the rate of prepayment tends to decrease, thereby lengthening the actual average life of the pool. However, these effects may not be present, or may differ in degree, if the mortgage loans in the pools have adjustable interest rates or other special payment terms, such as a prepayment charge. Actual prepayment experience may cause the yield of mortgage-backed securities to differ from the assumed average life yield. Reinvestment of prepayments may occur at higher or lower interest rates than the original investment, thus affecting a Fund’s yield.

The rate of interest on mortgage-backed securities is lower than the interest rates paid on the mortgages included in the underlying pool due to the annual fees paid to the servicer of the mortgage pool for passing through monthly payments to certificate holders and to any guarantor, such as GNMA, and due to any yield retained by the issuer. Actual yield to the holder may vary from the coupon rate, even if adjustable, if the mortgage-backed securities are purchased or traded in the secondary market at a premium or discount. In addition, there is normally some delay between the time the issuer receives mortgage payments from the servicer and the time the issuer makes the payments on the mortgage-backed securities, and this delay reduces the effective yield to the holder of such securities.

To-Be-Announced Mortgage-Backed Securities. As with other delayed-delivery transactions, a seller agrees to issue a to-be-announced mortgage-backed security (a “TBA”) at a future date. A TBA transaction arises when a mortgage-backed security, such as a GNMA pass-through security, is purchased or sold with specific pools that will constitute that GNMA pass-through security to be announced on a future settlement date. However, at the time of purchase, the seller does not specify the particular mortgage-backed securities to be delivered. Instead, a Fund agrees to accept any mortgage-backed security that meets specified terms. Thus, the Fund and the seller would agree upon the issuer, interest rate and terms of the underlying mortgages, but the seller would not identify the

specific underlying mortgages until shortly before it issues the mortgage-backed security. TBAs increase interest rate risks because the underlying mortgages may be less favorable than anticipated by the Fund.

Municipal Obligations

“Municipal Obligations” are debt obligations issued by or on behalf of states, territories and possessions of the U.S. and the District of Columbia and their political subdivisions, agencies and instrumentalities.

Municipal Obligations are issued by governmental entities to obtain funds for various public purposes, including the construction of a wide range of public facilities, the refunding of outstanding obligations, the payment of general operating expenses and the extension of loans to public institutions and facilities. Private activity bonds that are issued by or on behalf of public authorities to finance various privately operated facilities are included within the term Municipal Obligations if the interest paid thereon is exempt from regular federal income tax.

The two principal types of Municipal Obligations, in terms of the source of payment of debt service on the bonds, consist of “general obligation” and “revenue” issues. General obligation bonds are secured by the issuer’s pledge of its full faith, credit and taxing power for the payment of principal and interest. Revenue bonds are payable from the revenues derived from a particular facility or class of facilities or in some cases, from the proceeds of a special excise tax or other specific revenue source such as the user of the facility being financed. Consequently, the credit quality of revenue bonds is usually directly related to the credit standing of the user of the facility involved.

There are, of course, variations in the quality of Municipal Obligations, both within a particular classification and between classifications, and the yields on Municipal Obligations depend upon a variety of factors, including general money market conditions, the financial condition of the issuer, general conditions of the municipal bond market, the size of a particular offering, the maturity of the obligation and the rating of the issue. The ratings of Moody’s and S&P represent their opinions as to the quality of Municipal Obligations. It should be emphasized, however, that ratings are general and are not absolute standards of quality, and Municipal Obligations with the same maturity, interest rate and rating may have different yields while Municipal Obligations of the same maturity and interest rate with different ratings may have the same yield. Subsequent to its purchase by a Fund, an issue of Municipal Obligations may cease to be rated or its rating may be reduced below the minimum rating required for purchase by the Fund. Credit Suisse will consider such an event in determining whether the Fund should continue to hold the obligation. See Appendix B for further information concerning the ratings of Moody’s and S&P and their significance.

Among other instruments, a Fund may purchase short-term Tax Anticipation Notes, Bond Anticipation Notes, Revenue Anticipation Notes and other forms of short-term loans. Such notes are issued with a short term maturity in anticipation of the receipt of tax funds, the proceeds of bond placements or other revenues.

Municipal Obligations are also subject to the provisions of bankruptcy, insolvency and other laws affecting the rights and remedies of creditors, such as the Federal Bankruptcy Code, and laws, if any, which may be enacted by Congress or state legislatures extending the time for payment of principal or interest, or both, or imposing other constraints upon enforcement of such obligations or upon the ability of municipalities to levy taxes. There is also the possibility that as a result of litigation or other conditions, the power or ability of any one or more issuers to pay, when due, principal of and interest on its, or their, Municipal Obligations may be materially affected.

Bond Insurer Risk. A Fund may purchase municipal securities that are insured under policies issued by certain insurance companies. Insured municipal securities typically receive a higher credit rating which means that the issuer of the securities pays a lower interest rate. In purchasing such insured securities, Credit Suisse gives consideration both to the insurer and to the credit quality of the underlying issuer. The insurance reduces the credit risk for a particular municipal security by supplementing the creditworthiness of the underlying bond and provides additional security for payment of the principal and interest of a municipal security. To the extent a Fund holds insured municipal securities, a change in the credit rating of any one or more of the municipal bond insurers that insure securities in the Fund’s portfolio may affect the value of the securities they insure, the Fund’s share price and Fund performance. A Fund might also be adversely impacted by the inability of an insurer to meet its insurance obligations. A downgrade of municipal bond insurers rated above investment grade would substantially limit the

availability of insurance sought by municipal bond issuers, thereby reducing the supply of insured municipal securities.

Non-Diversified Status

Each of the Commodity Return Strategy Fund, the Managed Futures Strategy Fund and the Multialternative Strategy Fund is classified as non-diversified within the meaning of the 1940 Act, which means that it is not limited by such Act in the proportion of its assets that it may invest in securities of a single issuer. As a non-diversified investment company, a Fund may invest a greater proportion of its assets in the obligations of a small number of issuers and, as a result, may be subject to greater risk with respect to portfolio securities than a diversified fund. To the extent that a Fund assumes large positions in the securities of a small number of issuers, its return may fluctuate to a greater extent than that of a diversified company as a result of changes in the financial condition or in the market’s assessment of the issuers.

Each Fund’s investments will be limited, however, in order to qualify as a “regulated investment company” for purposes of the Code. See “Additional Information Concerning Taxes.” To qualify, a Fund will comply with certain requirements, including limiting its investments so that at the close of each quarter of the taxable year (i) not more than 25% of the market value of its total assets will be invested in the securities of a single issuer, and (ii) with respect to 50% of the market value of its total assets, not more than 5% of the market value of its total assets will be invested in the securities of a single issuer and the Fund will not own more than 10% of the outstanding voting securities of a single issuer.

Non-Publicly Traded Securities

Each Fund may invest in non-publicly traded securities, which may include illiquid securities. Historically, non-publicly traded securities have included securities subject to contractual or legal restrictions on resale because they have not been registered under the Securities Act of 1933, as amended (the “Securities Act”). Securities which have not been registered under the Securities Act are referred to as private placements or restricted securities and are purchased directly from the issuer or in the secondary market. Companies whose securities are not publicly traded may not be subject to the disclosure and other investor protection requirements applicable to companies whose securities are publicly traded. Limitations on resale may have an adverse effect on the marketability of portfolio securities and a mutual fund might be unable to dispose of restricted securities promptly or at reasonable prices. A mutual fund might also have to register such restricted securities in order to dispose of them resulting in additional expense and delay. Adverse market conditions could impede such a public offering of securities.

However, a large institutional market has developed for certain securities that are not registered under the Securities Act, including repurchase agreements, commercial paper, foreign securities, municipal securities and corporate bonds and notes. Institutional investors depend on an efficient institutional market in which the unregistered security can be readily resold or on an issuer’s ability to honor a demand for repayment. The fact that there are contractual or legal restrictions on resale to the general public or to certain institutions may not be indicative of the liquidity of such investments.

Non-publicly traded securities (including Rule 144A Securities) may involve a high degree of business and financial risk and may result in substantial losses. These securities may be less liquid than publicly traded securities, and a Fund may take longer to liquidate these positions than would be the case for publicly traded securities. Although these securities may be resold in privately negotiated transactions, the prices realized from these sales

could be less than those originally paid by a Fund.

Rule 144A Securities. Rule 144A under the Securities Act adopted by the SEC allows for a broader institutional trading market for securities otherwise subject to restriction on resale to the general public. Rule 144A establishes a “safe harbor” from the registration requirements of the Securities Act for resales of certain securities to qualified institutional buyers. Credit Suisse anticipates that the market for certain restricted securities such as institutional commercial paper will expand further as a result of this regulation and use of automated systems for the trading, clearance and settlement of unregistered securities of domestic and foreign issuers, such as the PORTAL System sponsored by the NASDAQ Stock Market, Inc.

Options

A Fund may purchase and write (sell) options on securities, securities indices, currencies, swap agreements and commodity indexes for hedging purposes or to increase total return. Up to 20% of the Commodity Return Strategy Fund’s total assets may be at risk in connection with investing in options on securities (other than swaps), securities indices and currencies. The Commodity Return Strategy Fund may invest without limit in swaptions. The amount of assets considered to be “at risk” in these transactions is, in the case of purchasing options, the amount of the premium paid, and, in the case of writing options, the value of the underlying obligation.

Securities Options. A Fund may write covered put and call options on stock and/or debt securities and may purchase such options that are traded on foreign and U.S. exchanges, as well as OTC options. A Fund realizes fees (referred to as “premiums”) for granting the rights evidenced by the options it has written. A put option embodies the right of its purchaser to compel the writer of the option to purchase from the option holder an underlying security at a specified price for a specified time period or at a specified time. In contrast, a call option embodies the right of its purchaser to compel the writer of the option to sell to the option holder an underlying security at a specified price for a specified time period or at a specified time.

The potential loss associated with purchasing an option is limited to the premium paid, and the premium would partially offset any gains achieved from its use. However, for an option writer the exposure to adverse price movements in the underlying security or index is potentially unlimited during the exercise period. Writing securities options may result in substantial losses to a Fund, force the sale or purchase of portfolio securities at inopportune times or at less advantageous prices, limit the amount of appreciation the Fund could realize on its investments or require the Fund to hold securities it would otherwise sell.

The principal reason for writing covered options on a security is to attempt to realize, through the receipt of premiums, a greater return than would be realized on the securities alone. In return for a premium, a Fund as the writer of a covered call option forfeits the right to any appreciation in the value of the underlying security above the

strike price for the life of the option (or until a closing purchase transaction can be effected). When a Fund writes call options, it retains the risk of a decline in the price of the underlying security. The size of the premiums that the Fund may receive may be adversely affected as new or existing institutions, including other investment companies, engage in or increase their option-writing activities.

If security prices rise, a put writer would generally expect to profit, although its gain would be limited to the amount of the premium it received. If security prices remain the same over time, it is likely that the writer will also profit, because it should be able to close out the option at a lower price. If security prices decline, the put writer would expect to suffer a loss. This loss may be less than the loss from purchasing the underlying instrument directly to the extent that the premium received offsets the effects of the decline.

In the case of options written by a Fund that are deemed covered by virtue of the Fund’s holding convertible or exchangeable preferred stock or debt securities, the time required to convert or exchange and obtain physical delivery of the underlying common stock with respect to which the Fund has written options may exceed the time within which the Fund must make delivery in accordance with an exercise notice. In these instances, the Fund may purchase or temporarily borrow the underlying securities for purposes of physical delivery. By so doing, the Fund will not bear any market risk, since the Fund will have the absolute right to receive from the issuer of the underlying security an equal number of shares to replace the borrowed securities, but the Fund may incur additional transaction costs or interest expenses in connection with any such purchase or borrowing.

Additional risks exist with respect to certain of the securities for which a Fund may write covered call options. For example, if a Fund writes covered call options on mortgage-backed securities, the mortgage-backed securities that it holds as cover may, because of scheduled amortization or unscheduled prepayments, cease to be sufficient cover. If this occurs, the Fund will compensate for the decline in the value of the cover by purchasing an appropriate additional amount of mortgage-backed securities.

Options written by a Fund will normally have expiration dates between one and nine months from the date written. The exercise price of the options may be below, equal to or above the market values of the underlying securities at the times the options are written. In the case of call options, these exercise prices are referred to as “in-the-money,” “at-the-money” and “out-of-the-money,” respectively. A Fund may write (i) in-the-money call options when Credit Suisse expects that the price of the underlying security will remain flat or decline moderately during the option period, (ii) at-the-money call options when Credit Suisse expects that the price of the underlying security will remain flat or advance moderately during the option period and (iii) out-of-the-money call options when Credit Suisse expects that the premiums received from writing the call option plus the appreciation in market price of the underlying security up to the exercise price will be greater than the appreciation in the price of the underlying security alone. In any of the preceding situations, if the market price of the underlying security declines and the security is sold at this lower price, the amount of any realized loss will be offset wholly or in part by the premium received. Out-of-the-money, at-the-money and in-the-money put options (the reverse of call options as to the relation of exercise price to market price) may be used in the same market environments that such call options are used in equivalent transactions. To secure its obligation to deliver the underlying security when it writes a call option, a Fund will be required to deposit in escrow the underlying security or other assets in accordance with the rules of the Options Clearing Corporation (the “Clearing Corporation”) and of the securities exchange on which the option is written.

Prior to their expirations, put and call options may be sold in closing sale or purchase transactions (sales or purchases by a Fund prior to the exercise of options that it has purchased or written, respectively, of options of the same series) in which the Fund may realize a profit or loss from the sale. An option position may be closed out only where there exists a secondary market for an option of the same series on a recognized securities exchange or in the OTC market. When a Fund has purchased an option and engages in a closing sale transaction, whether the Fund realizes a profit or loss will depend upon whether the amount received in the closing sale transaction is more or less than the premium the Fund initially paid for the original option plus the related transaction costs. Similarly, in cases where a Fund has written an option, it will realize a profit if the cost of the closing purchase transaction is less than the premium received upon writing the original option and will incur a loss if the cost of the closing purchase transaction exceeds the premium received upon writing the original option. A Fund may engage in a closing purchase transaction to realize a profit, to prevent an underlying security with respect to which it has written an option from being called or put or, in the case of a call option, to unfreeze an underlying security (thereby permitting

its sale or the writing of a new option on the security prior to the outstanding option’s expiration). The obligation of a Fund under an option it has written would be terminated by a closing purchase transaction (the Fund would not be deemed to own an option as a result of the transaction). So long as the obligation of the Fund as the writer of an option continues, the Fund may be assigned an exercise notice by the broker-dealer through which the option was sold, requiring the Fund to deliver the underlying security against payment of the exercise price. This obligation terminates when the option expires or the Fund effects a closing purchase transaction. A Fund cannot effect a closing purchase transaction with respect to an option once it has been assigned an exercise notice.

There is no assurance that sufficient trading interest will exist to create a liquid secondary market on a securities exchange for any particular option or at any particular time, and for some options no such secondary market may exist. A liquid secondary market in an option may cease to exist for a variety of reasons. In the past, for example, higher than anticipated trading activity or order flow or other unforeseen events have at times rendered certain of the facilities of the Clearing Corporation and various securities exchanges inadequate and resulted in the institution of special procedures, such as trading rotations, restrictions on certain types of orders or trading halts or suspensions in one or more options. There can be no assurance that similar events, or events that may otherwise interfere with the timely execution of customers’ orders, will not recur. In such event, it might not be possible to effect closing transactions in particular options. Moreover, a Fund’s ability to terminate options positions established in the OTC market may be more limited than for exchange-traded options and may also involve the risk that securities dealers participating in OTC transactions would fail to meet their obligations to the Fund. A Fund, however, will purchase OTC options only from dealers whose debt securities, as determined by Credit Suisse, are considered to be investment grade. If, as a covered call option writer, a Fund is unable to effect a closing purchase transaction in a secondary market, it will not be able to sell the underlying security and would continue to be at market risk on the security.

Securities exchanges generally have established limitations governing the maximum number of calls and puts of each class which may be held or written, or exercised within certain time periods by an investor or group of investors acting in concert (regardless of whether the options are written on the same or different securities exchanges or are held, written or exercised in one or more accounts or through one or more brokers). It is possible that a Fund and other clients of Credit Suisse and certain of its affiliates may be considered to be such a group. A securities exchange may order the liquidation of positions found to be in violation of these limits and it may impose certain other sanctions. These limits may restrict the number of options the Fund will be able to purchase on a particular security.

Securities and Commodities Index Options. A Fund may purchase and write exchange- and/or board of trade-listed and OTC put and call options on securities and commodities indexes. A securities index measures the movement of a certain group of securities by assigning relative values to the securities included in the index, fluctuating with changes in the market values of the securities included in the index. A commodities index measures the movement of a certain group of commodities by assigning relative values to the commodities included in the index, fluctuating with changes in the market values of the commodities included in the index. Some securities index options are based on a broad market index, such as the NYSE Composite Index, or a narrower market index, such as the Standard & Poor’s 100. Indexes may also be based on a particular industry or market segment.

Options on securities and commodities indexes are similar to options on securities and commodities, respectively, except that the delivery requirements are different. Instead of giving the right to take or make delivery of securities or commodities, respectively, at a specified price, an option on a securities or commodities index gives the holder the right to receive a cash “exercise settlement amount” equal to (a) the amount, if any, by which the fixed exercise price of the option exceeds (in the case of a put) or is less than (in the case of a call) the closing value of the underlying index on the date of exercise, multiplied by (b) a fixed “index multiplier.” Receipt of this cash amount will depend upon the closing level of the securities or commodities index upon which the option is based being greater than, in the case of a call, or less than, in the case of a put, the exercise price of the index and the exercise price of the option times a specified multiple. The writer of the option is obligated, in return for the premium received, to make delivery of this amount. Securities and commodities index options may be offset by entering into closing transactions as described above for securities and commodities options.

Uncovered Options Transactions. A Fund may write options that are not covered (or so called “naked options”) on portfolio securities. When a Fund sells an uncovered call option, it does not simultaneously have a long

position in the underlying security. When a Fund sells an uncovered put option, it does not simultaneously have a short position in the underlying security. Uncovered options are riskier than covered options because there is no underlying security held by the Fund that can act as a partial hedge. Uncovered calls have speculative characteristics and the potential for loss is unlimited. There is also a risk, especially with preferred and debt securities that lack liquidity, that the securities may not be available for purchase. Uncovered put options have speculative characteristics and the potential loss is substantial.

OTC Options. A Fund may purchase OTC or dealer options or sell covered OTC options. Unlike exchange-listed options where an intermediary or clearing corporation, such as the Clearing Corporation, assures that all transactions in such options are properly executed, the responsibility for performing all transactions with respect to OTC options rests solely with the writer and the holder of those options. A listed call option writer, for example, is obligated to deliver the underlying securities to the clearing organization if the option is exercised, and the clearing organization is then obligated to pay the writer the exercise price of the option. If a Fund were to purchase a dealer option, however, it would rely on the dealer from whom it purchased the option to perform if the option were exercised. If the dealer fails to honor the exercise of the option by the Fund, the Fund would lose the premium it paid for the option and the expected benefit of the transaction.

Exchange-traded options generally have a continuous liquid market while OTC or dealer options do not. Consequently, a Fund will generally be able to realize the value of a dealer option it has purchased only by exercising it or reselling it to the dealer who issued it. Similarly, when a Fund writes a dealer option, it generally will be able to close out the option prior to its expiration only by entering into a closing purchase transaction with the dealer to which the Fund originally wrote the option. Although a Fund will seek to enter into dealer options only with dealers who will agree to and that are expected to be capable of entering into closing transactions with the Fund, there can be no assurance that the Fund will be able to liquidate a dealer option at a favorable price at any time prior to expiration. The inability to enter into a closing transaction may result in material losses to the Fund. Until the Fund, as a covered OTC call option writer, is able to effect a closing purchase transaction, it will not be able to liquidate securities (or other assets) used to cover the written option until the option expires or is exercised. This requirement may impair the Fund’s ability to sell portfolio securities or, with respect to currency options, currencies at a time when such sale might be advantageous.

Options on Swaps (“Swaptions”). A Fund may purchase and sell put and call options on swap agreements, commonly referred to as swaptions. A Fund will enter into such transactions for hedging purposes or to seek to increase total return. Swaptions are highly specialized investments and are not traded on or regulated by any securities exchange or regulated by the CFTC or the SEC.

The buyer of a swaption pays a non-refundable premium for the option and obtains the right, but not the obligation, to enter into an underlying swap on agreed-upon terms. The seller of a swaption, in exchange for the premium, becomes obligated (if the option is exercised) to enter into an underlying swap on agreed-upon terms.

As with other options on securities, commodities, indices, or futures contracts, the price of any swaption will reflect both an intrinsic value component, which may be zero, and a time premium component. The intrinsic value component represents what the value of the swaption would be if it were immediately exercisable into the underlying swap. The intrinsic value component measures the degree to which an option is in-the-money, if at all. The time premium represents the difference between the actual price of the swaption and the intrinsic value.

The pricing and valuation terms of swaptions are not standardized and there is no clearinghouse whereby a party to the agreement can enter into an offsetting position to close out a contract.

The use of swaptions, as the foregoing discussion suggests, is subject to risks and complexities beyond what might be encountered with investing directly in the securities and other traditional investments that are the referenced asset for the swap or other standardized, exchange traded options and futures contracts. Such risks include operational risks, valuation risks, credit risks, and/or counterparty risk (i.e., the risk that the counterparty cannot or will not perform its obligations under the agreement). In addition, at the time the swaption reaches its scheduled termination date, there is a risk that a Fund will not be able to obtain a replacement transaction or that the

terms of the replacement will not be as favorable as on the expiring transaction. If this occurs, it could have a negative impact on the performance of the Fund.

While a Fund may utilize swaptions for hedging purposes or to seek to increase total return, their use might result in poorer overall performance for the Fund than if it had not engaged in any such transactions. If, for example, the Fund had insufficient cash, it might have to sell or pledge a portion of its underlying portfolio of securities in order to meet daily mark-to-market collateralization requirements at a time when it might be disadvantageous to do so. There may be an imperfect correlation between the Fund’s portfolio holdings and swaptions entered into by the Fund, which may prevent the Fund from achieving the intended hedge or expose the Fund to risk of loss. Further, the Fund’s use of swaptions to reduce risk involves costs and will be subject to Credit Suisse’s ability to predict correctly changes in interest rate relationships or other factors. No assurance can be given that Credit Suisse’s judgment in this respect will be correct.

Participation Notes

The Fund may gain exposure to securities in certain foreign markets through investments in participation notes (“P-notes”). For instance, the Fund may purchase P-notes while it is awaiting approval from a foreign exchange to trade securities directly in that market as well as to invest in foreign markets that restrict foreign investors, such as the Fund, from investing directly in individual securities traded on that exchange. P-notes are generally issued by banks or broker-dealers and are designed to offer a return linked to a particular underlying equity security. An investment in a P-note involves additional risks beyond the risks normally associated with a direct investment in the underlying security and the P-note’s performance may differ from the underlying security’s performance. While the holder of a P-note is entitled to receive from the broker-dealer or bank any dividends paid by the underlying security, the holder is not entitled to the same rights (e.g., voting rights) as an owner of the underlying stock. P-notes are considered general unsecured contractual obligations of the banks or broker-dealers that issue them as the counterparty. As such, the Fund must rely on the creditworthiness of the counterparty for their investment returns on the P-notes and would have no rights against the issuer of the underlying security. There is also no assurance that there will be a secondary trading market for a P-note or that the trading price of a P-note will equal the value of the underlying security. Additionally, issuers of P-notes and the calculation agent may have broad authority to control the foreign exchange rates related to the P-notes and discretion to adjust the P-note’s terms in response to certain events.

Preferred Stock

Preferred stock is subordinated to any debt the issuer has outstanding. Accordingly, preferred stock dividends are not paid until all debt obligations are first met. Preferred stock may be subject to more fluctuations in market value, due to changes in market participants’ perceptions of the issuer’s ability to continue to pay dividends, than debt of the same issuer.

REITs

A Fund may invest in real estate investment trusts (“REITs”), which are pooled investment vehicles that invest primarily in income-producing real estate or real estate related loans or interests. Like regulated investment companies such as a Fund, REITs are not taxed on income distributed to shareholders provided they comply with several requirements of the Code. When a Fund invests in a REIT, it will indirectly bear its proportionate share of any expenses paid by the REIT in addition to the expenses of the Fund.

Investing in REITs involves certain risks. A REIT may be affected by changes in the value of the underlying property owned by such REIT or by the quality of any credit extended by the REIT. REITs are dependent on management skills, are not diversified (except to the extent the Code requires), and are subject to the risks of financing projects. REITs are subject to heavy cash flow dependency, default by borrowers, self-liquidation, the possibilities of failing to qualify for the exemption from tax for distributed income under the Code and failing to maintain their exemptions from the 1940 Act. REITs are also subject to interest rate risks.

Repurchase Agreements

A Fund may enter into repurchase agreement transactions with member banks of the Federal Reserve System and certain non-bank dealers. Repurchase agreements are contracts under which the buyer of a security simultaneously commits to resell the security to the seller at an agreed-upon price and date. Under the terms of a typical repurchase agreement, a Fund would acquire any underlying security for a relatively short period (usually not more than one week) subject to an obligation of the seller to repurchase, and the Fund to resell, the obligation at an agreed-upon price and time, thereby determining the yield during the Fund’s holding period. This arrangement results in a fixed rate of return that is not subject to market fluctuations during the Fund’s holding period. The value of the underlying securities will at all times be at least equal to the total amount of the purchase obligation, including interest. A Fund bears a risk of loss in the event that the other party to a repurchase agreement defaults on its obligations or becomes bankrupt and the Fund is delayed or prevented from exercising its right to dispose of the collateral securities, including the risk of a possible decline in the value of the underlying securities during the period while the Fund seeks to assert this right. Credit Suisse monitors the creditworthiness of those bank and non-bank dealers with which the Funds enter into repurchase agreements to evaluate this risk. A repurchase agreement is considered to be a loan under the 1940 Act.

Reverse Repurchase Agreements

A Fund may enter into reverse repurchase agreements with member banks of the Federal Reserve System and certain non-bank dealers with respect to portfolio securities (for temporary purposes, such as to obtain cash to meet redemption requests when the liquidation of portfolio securities is deemed disadvantageous or inconvenient by Credit Suisse, in the case of the Strategic Income Fund). Reverse repurchase agreements involve the sale of securities held by a Fund pursuant to its agreement to repurchase them at a mutually agreed-upon date, price and rate of interest.

Reverse repurchase agreements involve the risk that the market value of the securities retained in lieu of sale may decline below the price of the securities the Fund has sold but is obligated to repurchase. In the event the buyer of securities under a reverse repurchase agreement files for bankruptcy or becomes insolvent, such buyer or its trustee or receiver may receive an extension of time to determine whether to enforce the Fund’s obligation to repurchase the securities, and the Fund’s use of the proceeds of the reverse repurchase agreement may effectively be restricted pending such decision.

Rule 18f-4 under the 1940 Act permits a Fund to enter into reverse repurchase agreements and similar financing transactions (e.g., recourse and non-recourse tender option bonds, borrowed bonds) notwithstanding the limitation on the issuance of senior securities in Section 18 of the 1940 Act, provided that the Fund either (i) complies with the 300% asset coverage ratio with respect to such transactions and any other borrowings in the aggregate, or (ii) treats such transactions as derivatives transactions under Rule 18f-4. See “—Regulatory Aspects of Derivatives Instruments—Rule 18f-4 under the 1940 Act” below.

Rights Offerings and Purchase Warrants

Rights offerings and purchase warrants are privileges issued by a corporation which enable the owner to subscribe to and purchase a specified number of shares of the corporation at a specified price during a specified period of time. Subscription rights normally have a short lifespan to expiration. The purchase of rights or warrants involves the risk that the Fund could lose the purchase value of a right or warrant if the right to subscribe to additional shares is not executed prior to the rights and warrants expiration. Also, the purchase of rights or warrants involves the risk that the effective price paid for the rights or warrants in addition to the subscription price of the related security may exceed the value of the subscribed security’s market price when, for example, there is no movement in the level of the underlying security.

Securities Acquired in Restructurings and Workouts

A Fund’s investments may include Distressed Securities. A Fund’s investments may also include senior obligations of a borrower issued in connection with a restructuring pursuant to Chapter 11 of the U.S. Bankruptcy Code (commonly known as “debtor-in-possession” or “DIP” financings). Distressed Securities may be the subject of restructurings outside of bankruptcy court in a negotiated workout or in the context of bankruptcy proceedings. In connection with these investments or an exchange or workout of such securities, a Fund may determine or be required to accept various instruments. These instruments may include, but are not limited to, equity securities, warrants, rights, participation interests in sales of assets and contingent-interest obligations. Depending upon, among other things, Credit Suisse’s evaluation of the potential value of such securities in relation to the price that could be obtained at any given time if they were sold, a Fund may determine to hold the securities in its portfolio.

Securities of Other Investment Companies

A Fund may invest in securities of other investment companies (including investment companies advised by Credit Suisse) to the extent permitted under the 1940 Act and the rules thereunder. Presently, under the 1940 Act, a Fund may hold securities of another investment company in amounts which (i) do not exceed 3% of the total outstanding voting stock of such company, (ii) do not exceed 5% of the value of the Fund’s total assets and (iii) when added to all other investment company securities held by the Fund, do not exceed 10% of the value of the Fund’s total assets. Pursuant to the 1940 Act and the rules thereunder, these percentage limitations, under certain circumstances, do not apply to investments in other funds. As a shareholder of another investment company, a Fund would bear, along with other shareholders, its pro rata portion of the other investment company’s expenses, including advisory fees. These

expenses would be in addition to the advisory and other expenses that the Fund bears directly in connection with its own operations. To the extent shares of a Fund are held by another fund, the ability of the Fund itself to purchase other funds may be limited.

Money Market Mutual Funds. A Fund may invest (with respect to the Commodity Return Strategy Fund, up to 25% of its assets) in securities of money market mutual funds, including those that are affiliated with the Fund or Credit Suisse, when Credit Suisse believes that it would be beneficial to the Fund and appropriate considering the factors of return and liquidity. A money market mutual fund is an investment company that invests in short-term high quality money market instruments. A money market mutual fund generally does not purchase securities with a remaining maturity of more than one year. As a shareholder in any mutual fund, a Fund will bear its ratable share of the mutual fund’s expenses, including management fees, and will remain subject to payment of the Fund’s management fees and other expenses with respect to assets so invested.

Senior Loans

Senior secured floating rate loans (“Senior Loans”) are loans and loan participations (collectively, “Loans”) that are senior secured floating rate Loans. Senior Loans are made to corporations and other non-governmental entities and issuers. Senior Loans typically hold the most senior position in the capital structure of the issuing entity, are typically secured with specific collateral and typically have a claim on the assets and/or stock of the borrower that is senior to that held by subordinated debt holders and stockholders of the borrower. The proceeds of Senior Loans primarily are used to finance leveraged buyouts, recapitalizations, mergers, acquisitions, stock repurchases, dividends, and, to a lesser extent, to finance internal growth and for other corporate purposes. Senior Loans typically have rates of interest that are determined daily, monthly, quarterly or semi-annually by reference to a base lending rate, plus a premium or credit spread. Base lending rates in common usage today are primarily the London Interbank Offered Rate (“LIBOR”), and secondarily the prime rate offered by one or more major U.S. banks (the “Prime Rate”) and the certificate of deposit (“CD”) rate or other base lending rates used by commercial lenders.

The risks associated with Senior Loans of below investment grade quality are similar to the risks of bonds rated below investment grade, although Senior Loans are typically senior and secured in contrast to bonds rated below investment grade, which are generally subordinated and unsecured. Senior Loans’ higher standing has historically resulted in generally higher recoveries in the event of a corporate reorganization. In addition, because their interest payments are adjusted for changes in short-term interest rates, investments in Senior Loans generally have less interest rate risk than below-investment-grade rated bonds. A Fund’s investments in Senior Loans are expected to typically be below investment grade, which are considered speculative because of the credit risk of their issuers. Such companies are more likely to default on their payments of interest and principal owed to the Fund, and such defaults could reduce the Fund’s net asset value and income distributions. An economic downturn generally leads to a higher non-payment rate, and a debt obligation may lose significant value before a default occurs. Moreover, any specific collateral used to secure a Loan may decline in value or become illiquid, which would adversely affect the Loan’s value.

Like other debt instruments, Senior Loans are subject to the risk of non-payment of scheduled interest or principal. Such non-payment would result in a reduction of income to a Fund, a reduction in the value of the investment and a potential decrease in the net asset value per share of the Fund. There can be no assurance that the liquidation of any collateral securing a Loan would satisfy the borrower’s obligation in the event of non-payment of scheduled interest or principal payments, or that such collateral could be readily liquidated. Senior Loans are also subject to heightened prepayment risk, as they usually have mandatory and optional prepayment provisions. In the event of bankruptcy of a borrower, a Fund could experience delays or limitations with respect to its ability to realize the benefits of the collateral securing a Senior Loan. The collateral securing a Senior Loan may lose all or substantially all of its value in the event of bankruptcy of a borrower. In the event of default, a Fund may have difficulty collecting on any collateral. Some Senior Loans are subject to the risk that a court, pursuant to fraudulent conveyance or other similar laws, could subordinate such Senior Loans to presently existing or future indebtedness

of the borrower or take other action detrimental to the holders of Senior Loans including, in certain circumstances, invalidating such Senior Loans or causing interest previously paid to be refunded to the borrower. Due to the above factors, a collateralized Senior Loan may not be fully collateralized and may decline significantly in value. If interest were required to be refunded, it could negatively affect a Fund’s performance.

A Fund may purchase and retain in its portfolio Senior Loans where the borrowers have experienced, or may be perceived to be likely to experience, credit problems, including default, involvement in or recent emergence from bankruptcy reorganization proceedings or other forms of debt restructuring. At times, in connection with the restructuring of a Senior Loan either outside of bankruptcy court or in the context of bankruptcy court proceedings, a Fund may determine or be required to accept equity securities or junior debt securities in exchange for all or a portion of a Senior Loan.

Senior Loans may not be rated by a NRSRO, may not be registered with the SEC or any state securities commission, and may not be listed on any national securities exchange. The amount of public information available with respect to Senior Loans may be less extensive than that available for registered or exchange-listed securities. In evaluating the creditworthiness of borrowers, Credit Suisse will consider, and may rely in part, on analyses performed by others.

Borrowers may have outstanding debt obligations that are rated below investment grade by a NRSRO. Most of the Senior Loans held by a Fund will have been assigned ratings below investment grade by a NRSRO. In the event Senior Loans are not rated, they are likely to be the equivalent of below investment grade quality. A Fund will rely on the judgment, analysis and experience of Credit Suisse in evaluating the creditworthiness of a borrower. In this evaluation, Credit Suisse will take into consideration, among other things, the borrower’s financial resources, its sensitivity to economic conditions and trends, its operating history, the quality of the borrower’s management and regulatory matters.

No active trading market may exist for some Senior Loans and some Senior Loans may be subject to restrictions on resale. Secondary markets may be subject to irregular trading activity and wide bid/ask spreads, which may impair the ability to realize full value and thus cause a decline in a Fund’s net asset value. During periods of limited demand and liquidity for Senior Loans, a Fund’s net asset value may be adversely affected.

Transactions in Senior Loans may settle on a delayed basis, resulting in the proceeds from the sale of Senior Loans not being readily available to make additional investments or to meet a Fund’s redemption obligations. To the extent the extended settlement process gives rise to short-term liquidity needs, a Fund may hold cash, sell investments or temporarily borrow from banks or other lenders.

Although changes in prevailing interest rates can be expected to cause some fluctuations in the value of Senior Loans (due to the fact that floating rates on Senior Loans only reset periodically), the value of Senior Loans tends to be substantially less sensitive to changes in market interest rates than fixed-rate instruments. Nevertheless, a sudden and significant increase in market interest rates may cause a decline in the value of these investments and an associated decline in a Fund’s net asset value.

Other factors (including, but not limited to, rating downgrades, credit deterioration, a large downward movement in stock prices, a disparity in supply and demand of certain investments or market conditions that reduce liquidity) can reduce the value of Senior Loans and other debt obligations, impairing a Fund’s net asset value.

A Fund may purchase Senior Loans by assignment from a participant in the original syndicate of lenders or from subsequent assignees of such interests, or can buy a participation in a loan. A Fund may also purchase participations in the original syndicate making Senior Loans. Loan participations typically represent indirect participations in a loan to a corporate borrower, and generally are offered by banks or other financial institutions or lending syndicates. When purchasing loan participations, a Fund assumes the credit risk associated with the corporate borrower and may assume the credit risk associated with an interposed bank or other financial intermediary. A Fund will acquire participations only if the lender interpositioned between the Fund and the borrower is determined by Credit Suisse to be creditworthy. In circumstances where a Fund is a participant in a loan, it does not have any direct claim on the loan or any rights of set-off against the borrower and may not benefit directly from any collateral supporting the loan. In these situations, the Fund is subject to the credit risk of both the borrower and the lender that is selling the participation. In the event of the insolvency of the lender selling a participation, the Fund may be treated as a general creditor of the lender and may not benefit from any set-off between the lender and the borrower.

Economic and other events (whether real or perceived) can reduce the demand for certain Senior Loans or Senior Loans generally, which may reduce market prices and cause a Fund’s net asset value per share to fall. The frequency and magnitude of such changes cannot be predicted.

Loans and other debt instruments are also subject to the risk of price declines due to increases in prevailing interest rates, although floating-rate debt instruments are less exposed to this risk than fixed-rate debt instruments. Interest rate changes may also increase prepayments of debt obligations and require a Fund to invest assets at lower yields. No active trading market may exist for certain Loans, which may impair the ability of a Fund to realize full value in the event of the need to liquidate such assets.

Adverse market conditions may impair the liquidity of some actively traded Loans.

Second Lien and Other Secured Loans. “Second Lien Loans” are “second lien” secured floating rate Loans made by public and private corporations and other non-governmental entities and issuers for a variety of purposes. Second Lien Loans are second in right of payment to one or more Senior Loans of the related borrower. Second Lien Loans typically are secured by a second priority security interest or lien to or on specified collateral securing the borrower’s obligation under the Loan and typically have similar protections and rights as Senior Loans. Second Lien Loans are not (and by their terms cannot) become subordinated in right of payment to any obligation of the related borrower other than Senior Loans of such borrower. Second Lien Loans, like Senior Loans, typically have adjustable floating rate interest payments. Because Second Lien Loans are second to Senior Loans, they present a greater degree of investment risk but often pay interest at higher rates reflecting this additional risk.

A Fund may also invest in secured Loans other than Senior Loans and Second Lien Loans. Such secured Loans are made by public and private corporations and other non-governmental entities and issuers for a variety of purposes, and may rank lower in right of payment to one or more Senior Loans and Second Lien Loans of the borrower. Such secured Loans typically are secured by a lower priority security interest or lien to or on specified collateral securing the borrower’s obligation under the Loan, and typically have more subordinated protections and rights than Senior Loans and Second Lien Loans. Secured Loans may become subordinated in right of payment to more senior obligations of the borrower issued in the future. Such secured Loans may have fixed or adjustable floating rate interest payments. Because other secured Loans rank in payment order behind Senior Loans and Second Lien Loans, they present a greater degree of investment risk but often pay interest at higher rates reflecting this additional risk.

Second Lien Loans and other secured Loans generally are of below investment grade quality. Other than their subordinated status, Second Lien Loans and other secured Loans have many characteristics similar to Senior Loans discussed above. As in the case of Senior Loans, a Fund may purchase interests in Second Lien Loans and other secured Loans through assignments or participations.

Second Lien Loans and other secured Loans are subject to the same risks associated with investment in Senior Loans and bonds rated below investment grade. However, because Second Lien Loans are second in right of payment to one or more Senior Loans of the related borrower, and other secured Loans rank lower in right of payment to Second Lien Loans, they are subject to the additional risk that the cash flow of the borrower and any property securing the Loan may be insufficient to meet scheduled payments after giving effect to the more senior secured obligations of the borrower. Second Lien Loans and other secured Loans also are expected to have greater price volatility than Senior Loans and may lack liquidity. There also is a possibility that originators will not be able to sell participations in Second Lien Loans and other secured Loans, which would create greater credit risk exposure.

Short Sales

A short sale is a transaction in which a Fund sells securities it does not own in anticipation of a decline in the market price of the securities. In a short sale, a Fund sells a borrowed security and has a corresponding obligation to the lender to return the identical security. The seller does not immediately deliver the securities sold and is said to have a short position in those securities until delivery occurs.

To deliver the securities to the buyer, a Fund must arrange through a broker to borrow the securities and, in so doing, the Fund becomes obligated to replace the securities borrowed at their market price at the time of replacement, whatever that price may be. A Fund will make a profit or incur a loss as a result of a short sale depending on whether the price of the securities decreases or increases between the date of the short sale and the date on which the Fund purchases the security to replace the borrowed securities that have been sold. The amount of any loss would be increased (and any gain decreased) by any premium or interest the Fund is required to pay in connection with a short sale.

If a Fund engages in a short sale, the collateral for the short position will be maintained by the Fund’s custodian or qualified sub-custodian. A Fund must comply with Rule 18f-4 under the 1940 Act with respect to its short sale borrowings, which are considered derivatives transactions under the Rule. See “—Regulatory Aspects of Derivatives Instruments—Rule 18f-4 under the 1940 Act” below.

If a Fund effects a short sale of securities at a time when it has an unrealized gain on the securities, it may be required to recognize that gain as if it had actually sold the securities (as a “constructive sale”) on the date it effects the short sale. However, such constructive sale treatment may not apply if the Fund closes out the short sale with securities other than the appreciated securities held at the time of the short sale and if certain other conditions are satisfied. Uncertainty regarding the tax consequences of effecting short sales may limit the extent to which a Fund may effect short sales.

Alternatively, a Fund may take short positions using derivatives, such as swaps or futures. For example, the Fund may enter into a futures contract pursuant to which it agrees to sell a specified asset (that it does not currently own) at a specified future date for a specified price agreed-upon today. This gives a Fund a short position with respect to that asset. A Fund will benefit to the extent the asset decreases in value (and incur losses to the extent the asset increases in value) between the time it enters into the futures contract and the agreed date of sale.

Short Sales “Against the Box”

A short sale is “against the box” to the extent that the Fund contemporaneously owns or has the right to obtain, at no added cost, securities identical to those sold short. It may be entered into by a Fund to, for example, lock in a sale price for a security the Fund does not wish to sell immediately. These securities constitute the Fund’s long position.

Not more than 10% of the Commodity Return Strategy Fund’s net assets (taken at current value) may be held as collateral for short sales against the box at any one time. Each of the Commodity Return Strategy Fund, the Floating Rate High Income Fund and the Managed Futures Strategy Fund do not intend to engage in short sales against the box for investment purposes. Each of the Strategic Income Fund and the Multialternative Strategy Fund may enter into short sales “against the box” to a limited extent.

A Fund may make a short sale as a hedge, when it believes that the price of a security may decline, causing a decline in the value of a security owned by the Fund (or a security convertible or exchangeable for such security). In such case, any future losses in the Fund’s long position should be offset by a gain in the short position and, conversely, any gain in the long position should be reduced by a loss in the short position. The extent to which such gains or losses are reduced will depend upon the amount of the security sold short relative to the amount the Fund owns. There will be certain additional transaction costs associated with short sales against the box, but a Fund will endeavor to offset these costs with the income from the investment of the cash proceeds of short sales.

See “Additional Information Concerning Taxes” for a discussion of the tax consequences to a Fund of effecting short sales against the box.

“Special Situation” Companies

“Special situation” companies are companies involved in an actual or prospective acquisition or consolidation; reorganization; recapitalization; merger, liquidation or distribution of cash, securities or other assets; a tender or exchange offer; a breakup or workout of a holding company; or litigation which, if resolved favorably, would improve the value of the company’s stock.  If the actual or prospective situation does not materialize as anticipated, the market price of the securities of a “special situation company” may decline significantly.  Credit Suisse believes, however, that if it analyzes “special situation companies” carefully and invests in the securities of

these companies at the appropriate time, it may assist the Fund in achieving its investment objective.  There can be no assurance, however, that a special situation that exists at the time of its investment will be consummated under the terms and within the time period contemplated.

Stand-By Commitment Agreements

A Fund may invest in “stand-by commitments” with respect to securities held in its portfolio. Under a stand-by commitment, a dealer agrees to purchase at the Fund’s option specified securities at a specified price. The Fund’s right to exercise stand-by commitments is unconditional and unqualified. Stand-by commitments acquired by the Fund may also be referred to as “put” options. A stand-by commitment is not transferable by the Fund, although the Fund can sell the underlying securities to a third party at any time.

The principal risk of stand-by commitments is that the writer of a commitment may default on its obligation to repurchase the securities acquired with it. When investing in stand-by commitments, a Fund will seek to enter into stand-by commitments only with brokers, dealers and banks that, in the opinion of Credit Suisse, present minimal credit risks. In evaluating the creditworthiness of the issuer of a stand-by commitment, Credit Suisse will periodically review relevant financial information concerning the issuer’s assets, liabilities and contingent claims. A Fund acquires stand-by commitments only in order to facilitate portfolio liquidity and does not expect to exercise its rights under stand-by commitments for trading purposes.

The amount payable to a Fund upon its exercise of a stand-by commitment is normally (i) the Fund’s acquisition cost of the securities (excluding any accrued interest which the Fund paid on their acquisition), less any amortized market premium or plus any amortized market or original issue discount during the period the Fund owned the securities, plus (ii) all interest accrued on the securities since the last interest payment date during that period.

A Fund expects that stand-by commitments will generally be available without the payment of any direct or indirect consideration. However, if necessary or advisable, a Fund may pay for a stand-by commitment either separately in cash or by paying a higher price for portfolio securities which are acquired subject to the commitment (thus reducing the yield to maturity otherwise available for the same securities). The total amount paid in either manner for outstanding stand-by commitments held in the Fund’s portfolio will not exceed 1/2 of 1% of the value of the Fund’s total assets calculated immediately after each stand-by commitment is acquired.

A Fund would acquire stand-by commitments solely to facilitate portfolio liquidity and does not intend to exercise its rights thereunder for trading purposes. The acquisition of a stand-by commitment would not affect the valuation or assumed maturity of the underlying securities. Stand-by commitments acquired by the Fund would be valued at zero in determining net asset value. Where the Fund paid any consideration directly or indirectly for a stand-by commitment, its cost would be reflected as unrealized depreciation for the period during which the commitment was held by the Fund.

Rule 18f-4 under the 1940 Act permits a Fund to enter into when-issued or forward-settling securities (e.g., dollar rolls and firm and standby commitments, including TBA commitments) and nonstandard settlement cycle securities notwithstanding the limitation on the issuance of senior securities in Section 18 of the Investment Company Act, provided that the transaction meets the Delayed-Settlement Securities Provision (as defined below under "--When-Issued Securities and Delayed Delivery Transactions"). If a when-issued, forward-settling or non-standard settlement cycle security does not satisfy the Delayed-Settlement Securities Provision, then it is treated as a derivatives transaction under Rule 18f-4. See "—Regulatory Aspects of Derivatives Instruments — Rule 18f-4 Under the 1940 Act" below.

The Internal Revenue Service (“IRS”) has issued a revenue ruling to the effect that a registered investment company will be treated for federal income tax purposes as the owner of the Municipal Obligations acquired subject to a stand-by commitment and the interest on the Municipal Obligations will be tax-exempt to the Fund.

Structured Notes, Bonds or Debentures

Typically, the value of the principal and/or interest on structured notes, bonds and debentures is determined by reference to changes in the value of specific currencies, interest rates, commodities, indexes or other financial

indicators (the “Reference”) or the relevant change in two or more References. The interest rate or the principal amount payable upon maturity or redemption may be increased or decreased depending upon changes in the applicable Reference. The terms of the structured securities may provide that in certain circumstances no principal is due at maturity and, therefore, may result in the loss of a Fund’s entire investment. The value of structured securities may move in the same or the opposite direction as the value of the Reference, so that appreciation of the Reference may produce an increase or decrease in the interest rate or value of the security at maturity. In addition, the change in interest rate or the value of the security at maturity may be a multiple of the change in the value of the Reference so that the security may be more or less volatile than the Reference, depending on the multiple. Consequently, structured securities may entail a greater degree of market risk and volatility than other types of debt obligations.

Limitations on Leverage. As discussed in the Prospectus, some of the structured notes in which the Commodity Return Strategy Fund invests may involve leverage. Economic leverage occurs when an investor has the right to a return on an investment that exceeds the return that the investor would expect to receive based on the amount contributed to the investment. Economically leveraged structured notes can increase the gain or the loss associated with changes in the value of the underlying instrument. The Commodity Return Strategy Fund will seek to limit the amount of economic leverage it has under any one structured note in which it invests and the leverage of the Commodity Return Strategy Fund’s overall portfolio. The Commodity Return Strategy Fund will not invest in a structured note if, at the time of purchase that note’s “leverage ratio” exceeds 300% of the price increase (or decrease) in the underlying index; or the Commodity Return Strategy Fund’s “portfolio leverage ratio” exceeds 150%, measured at the time of purchase.

“Leverage ratio” is the expected increase in the value of a structured note, assuming a one percent price increase in the underlying index. In other words, for a structured note with a leverage factor of 150%, a 1% gain in the underlying index would be expected to result in a 1.5% gain in value for the structured note. “Portfolio leverage ratio” is defined as the average (mean) leverage ratio of all instruments in the Commodity Return Strategy Fund’s portfolio, weighted by the market values of such instruments. To the extent that the policy on the Commodity Return Strategy Fund’s use of leverage stated above conflicts with the 1940 Act or the rules and regulations thereunder, the Commodity Return Strategy Fund will comply with the applicable provisions of the 1940 Act.

Principal Protection. Commodity-linked structured notes and certain other commodity-linked instruments may be principal protected, partially protected, or offer no principal protection. A principal protected hybrid instrument means that the issuer will pay, at a minimum, the par value of the note at maturity. Therefore, if the commodity value to which the hybrid instrument is linked declines over the life of the note, a Fund will receive at maturity the face or stated value of the note.

With a principal protected commodity-linked instrument, a Fund would receive at maturity the greater of the par value of the note or the increase in value of the underlying commodity index. This protection is, in effect, an option whose value is subject to the volatility and price level of the underlying commodity index. This optionality can be added to an instrument, but only for a cost higher than that of a partially protected (or no protection) instrument. Credit Suisse’s decision on whether to use principal protection depends in part on the cost of the protection. The Commodity Return Strategy Fund will, however, limit commodity-linked notes without principal protection to 10% of its total assets. In addition, the utility of the protection feature depends upon the ability of the issuer to meet its obligation to buy back the security, and, therefore, depends on the creditworthiness of the issuer.

With full principal protection, a Fund will receive at maturity of the commodity-linked instrument either the stated par value of the commodity-linked instrument, or, potentially, an amount greater than the stated par value if the underlying commodity index, futures contract or economic variable to which the commodity-linked instrument is linked has increased in value. Partially protected commodity-linked instruments may suffer some loss of principal if the underlying commodity index, futures contract or economic variable to which the commodity-linked instrument is linked declines in value during the term of the commodity-linked instrument. However, partially protected commodity-linked instruments have a specified limit as to the amount of principal that they may lose.

A Fund may also invest in commodity-linked instruments that offer no principal protection. At maturity, there is a risk that the underlying commodity index, futures contract or other economic variable may have declined sufficiently in value such that some or all of the face value of the instrument might not be returned. Some of the

instruments that the Fund may invest in may have no principal protection and the instrument could lose all of its value.

With a partially-protected or no-principal-protection commodity-linked instrument, a Fund may receive at maturity an amount less than the instrument’s par value if the commodity index or other economic variable value to which the note is linked declines over the term of the note. Credit Suisse, at its discretion, may invest in a partially protected principal structured note or, within the 10% limitation set forth above, a note without principal protection. In deciding to purchase a note without principal protection, Credit Suisse may consider, among other things, the expected performance of the underlying commodity index, commodity futures contract or other economic variable over the term of the note, the cost of the note, and any other economic factors which Credit Suisse believes are relevant.

A Fund does not currently expect to invest more than 25% of its total assets in structured notes under whose terms the potential loss, either at redemption or maturity, is expected to exceed 50% of the face value of the notes, calculated at the time of investment.

The Commodity Return Strategy Fund does not currently intend to invest more than 10% of its total assets in notes that mature in more than 19 months.

Resolution Measures. Certain structured notes issued by European issuers may subject a fund that purchases them to the imposition of “resolution measures” required under the European Union Bank Recovery and Resolution Directive. Such measures include the power to (i) write down, including to zero, any payment on the notes; (ii) convert the notes into ordinary shares or certain other equity instruments; and/or (iii) apply any other resolution measure, including, but not limited to, any transfer of the notes to another entity, the amendment of the terms and conditions of the notes or the cancellation of the notes. If a resolution measure becomes applicable to the structured notes held by a fund, the fund could lose some or all of its investment.

Swap Agreements

A Fund may enter into swap agreements with respect to interest rates, specific securities or commodities and indexes of securities or commodities, and mortgage, credit and event-linked swaps, and to the extent it may invest in foreign-currency denominated securities, a Fund may enter into swap agreements with respect to foreign currencies.

A Fund may enter into swap transactions for any legal purpose consistent with its investment objective(s) and policies, such as for the purpose of attempting to obtain or preserve a particular return or spread at a lower cost than obtaining a return or spread through purchase and/or sales of instruments in other markets, to seek to increase total return (speculation), to protect against currency fluctuations, as a duration management technique, to protect against any increase in the price of securities the Fund anticipates purchasing at a later date, or to gain exposure to certain markets in the most economical way possible.

Swap agreements are two-party contracts entered into primarily by institutional investors for periods ranging from a few weeks to more than one year. In a standard “swap” transaction, two parties agree to exchange the returns (or differentials in rates of return) earned or realized on particular predetermined investments or instruments, which may be adjusted for an interest factor. The gross returns to be exchanged or “swapped” between the parties are generally calculated with respect to a “notional amount,” i.e., the return on or increase in value of a particular dollar amount invested at a particular interest rate, in a particular foreign currency, or in a “basket” of securities or commodities representing a particular index. Interest rate swaps involve the exchange by the Fund with another party of their respective commitments to pay or receive interest, such as an exchange of fixed rate payments for floating rate payments. Index swaps involve the exchange by the Fund with another party of the respective amounts payable with respect to a notional principal amount related to one or more indexes. Mortgage swaps are similar to interest rate swaps in that they represent commitments to pay and receive interest. The notional principal amount, however, is tied to a reference pool or pools of mortgages. Currency swaps involve the exchange of cash flows on a notional amount of two or more currencies based on their relative future values. Commodity swaps may, for example, involve the exchange of floating-rate interest payments for the total return on a commodity index. In a total return commodity swap, a Fund will receive the price appreciation of a commodity index, a portion of the index, or a single commodity in exchange for paying an agreed-upon fee. If the commodity swap is for one period, the Fund may pay a fixed fee, established at the outset of the swap. However, if the term of the commodity swap is more than one period, with interim swap payments, the Fund may pay an adjustable or floating fee. With a “floating” rate, the fee may be pegged to a base rate, such as the London Interbank Offered Rate, and adjusted each period. Therefore, if interest rates increase over the term of the swap contract, the Fund may be required to pay a higher fee at each swap reset date.

Most swap agreements entered into by a Fund would calculate the obligations of the parties to the agreement on a “net” basis, which means that the two payment streams are netted out, with the Fund receiving or paying, as the case may be, only the net amount of the two payments. Consequently, the Fund’s current obligations (or rights) under a swap agreement will generally be equal only to the net amount to be paid or received under the agreement based on the relative values of the positions held by each party to the agreement.

Whether a Fund’s use of swap agreements will be successful in furthering its investment objective of total return will depend on Credit Suisse’s ability to predict correctly whether certain types of investments are likely to produce greater returns than other investments. Because they are two party contracts and because they may have terms of greater than seven days, swap agreements may lack liquidity. Moreover, the Fund bears the risk of loss of the amount expected to be received under a swap agreement in the event of the default or bankruptcy of a swap agreement counterparty. A Fund will enter into swap agreements only with counterparties that meet certain standards of creditworthiness. Pursuant to restrictions imposed on each Fund by the Code which limit the Fund’s ability to use swap agreements, each Fund limits its investments in commodity-linked swap agreements so that the income derived from commodity-linked swap agreements is limited to a maximum of 10% of the Fund’s gross income.

Interest rate, index and mortgage swaps do not involve the delivery of securities, other underlying assets or principal. Accordingly, the risk of loss with respect to interest rate, index and mortgage swaps is limited to the net amount of interest payments that a Fund is contractually obligated to make. If the other party to an interest rate, index or mortgage swap defaults, the Fund’s risk of loss consists of the net amount of interest payments that the Fund is contractually entitled to receive. In contrast, currency swaps usually involve the delivery of a gross payment stream in one designated currency in exchange for the gross payment stream in another designated currency. Therefore, the entire payment stream under a currency swap is subject to the risk that the other party to the swap will default on its contractual delivery obligations.

Each Subsidiary may invest without limit in commodity-linked swap agreements.

Credit Default Swap Agreements. A Fund may enter into credit default swap agreements either as a buyer or a seller. A Fund may buy a credit default swap to attempt to mitigate the risk of default or credit quality deterioration in one or more individual holdings or in a segment of the fixed income securities market. A Fund may sell a credit default swap in an attempt to gain exposure to an underlying issuer’s credit quality characteristics without investing directly in that issuer.

The “buyer” in a credit default swap is obligated to pay the “seller” an upfront payment or a periodic stream of payments over the term of the agreement, provided that no credit event on an underlying reference obligation has occurred. If a credit event occurs, the seller must pay the buyer the full notional value, or “par value,” of the reference obligation in exchange for the reference obligation. As a result of counterparty risk, certain credit default swap agreements may involve greater risks than if the Fund had invested in the reference obligation directly.

If a Fund is a buyer and no credit event occurs, the cost to the Fund is the premium paid with respect to the agreement. If a credit event occurs, however, the Fund may elect to receive the full notional value of the swap in exchange for an equal face amount of deliverable obligations of the reference entity that may have little or no value. On the other hand, the value of any deliverable obligations paid by the Fund to the seller, coupled with the up front or periodic payments previously received by the seller, may be less than the full notional value the seller pays to the Fund, resulting in a loss of value to the Fund.

If a Fund is a seller and no credit event occurs, the Fund would generally receive an upfront payment or a fixed rate of income throughout the term of the swap, which typically is between six months and three years. If a credit event occurs, however, generally the Fund would have to pay the buyer the full notional value of the swap in exchange for an equal face amount of deliverable obligations of the reference entity that may have little or no value. When a Fund acts as a seller of a credit default swap agreement it is exposed to speculative exposure risk since, if a credit event occurs, the Fund may be required to pay the buyer the full notional value of the contract net of any amounts owed by the buyer related to its delivery of deliverable obligations of the reference entity. As a result, the Fund bears the entire risk of loss due to a decline in value of a referenced security on a credit default swap it has sold if there is a credit event with respect to the security. The Fund bears the same risk as a buyer of fixed income securities directly. A Fund will sell a credit derivative only with respect to securities in which it would be authorized to invest.

Certain credit default swap agreements may not have liquidity beyond the counterparty to the agreement and may lack liquidity. Other credit default swap agreements, however, may have greater liquidity. Moreover, a Fund bears the risk of loss of the amount expected to be received under a credit default swap agreement in the event of the default or bankruptcy of the counterparty. A Fund will enter into swap agreements as a buyer only with counterparties that are deemed creditworthy by Credit Suisse. Credit default swap agreements are generally valued at a price at which the counterparty to such agreement would terminate the agreement. As the seller of a credit default swap, a Fund would be subject to investment exposure on the notional amount of the swap.

When a Fund buys or sells a credit derivative, the underlying issuer(s) or obligor(s) to the transaction will be treated as an issuer for purposes of complying with the Fund’s issuer diversification and industry concentration policies, absent regulatory guidance to the contrary. The notional amount of the credit exposure to which the Floating Rate High Income Fund is subject when it sells credit protection, plus the market value of the Floating Rate High Income Fund’s investments in credit derivatives and/or premiums paid therefor as a buyer of credit derivatives, will not in the aggregate exceed 20% of the Floating Rate High Income Fund’s total assets. A Fund may, but is not required to, use credit swaps or any other credit derivative. There is no assurance that credit derivatives will be available at any time or, if used, that the derivatives will be used successfully.

Interest Rate Caps, Floors and Collars. Forms of swap agreements also include interest rate caps, under which, in return for a premium, one party agrees to make payments to the other to the extent that interest rates exceed a specified rate, or “cap,” interest rate floors, under which, in return for a premium, one party agrees to make

payments to the other to the extent that interest rates fall below a specified rate, or “floor,” and interest rate collars, under which a party sells a cap and purchases a floor or vice versa in an attempt to protect itself against interest rate movements exceeding given minimum or maximum levels.

A Fund may enter into interest rate caps, floors and collars for hedging purposes or to seek to increase total return (speculation). The purchase of an interest rate cap entitles the purchaser, to the extent that a specified index exceeds a predetermined interest rate, to receive payment of interest on a notional principal amount from the party selling such interest rate cap. The purchase of an interest rate floor entitles the purchaser, to the extent that a specified index falls below a predetermined interest rate, to receive payments of interest on a notional principal amount from the party selling the interest rate floor. An interest rate collar is the combination of a cap and a floor that preserves a certain return within a predetermined range of interest rates.

Temporary Investments

To the extent permitted by its investment objective and policies, a Fund may hold cash or cash equivalents pending investment or to meet redemption requests. In addition, for defensive purposes due to abnormal market conditions or economic situations as determined by Credit Suisse, a Fund may reduce its holdings in other securities and invest up to 100% of its assets in cash or certain short-term (less than twelve months to maturity) and medium-term (not greater than five years to maturity) interest-bearing instruments or deposits of the U.S. and foreign issuers. The short-term and medium-term debt securities in which a Fund may invest for temporary defensive purposes consist of: (a) obligations of the United States or foreign governments, their respective agencies or instrumentalities; (b) bank deposits or bank obligations (including certificates of deposit, time deposits and bankers’ acceptances) of U.S. or foreign banks denominated in any currency; (c) floating rate securities and other instruments denominated in any currency issued by international development agencies; (d) finance company and corporate commercial paper and other short-term corporate debt obligations of U.S. and foreign corporations; and (e) repurchase agreements with banks and broker-dealers with respect to such securities.

U.S. Government Securities

A Fund may invest in obligations issued or guaranteed by the U.S. government, its agencies or instrumentalities (“Government Securities”). Direct obligations of the U.S. Treasury include a variety of securities that differ in their interest rates, maturities and dates of issuance. U.S. government securities also include securities issued or guaranteed by the Federal Housing Administration, Farmers Home Loan Administration, Export-Import Bank of the U.S., Small Business Administration, GNMA, General Services Administration, Central Bank for Cooperatives, Federal Farm Credit Banks, Federal Home Loan Banks, Freddie Mac, Federal Intermediate Credit Banks, Federal Land Banks, Fannie Mae, Maritime Administration, Tennessee Valley Authority, District of Columbia Armory Board and Student Loan Marketing Association. A Fund may invest in instruments that are supported by the right of the issuer to borrow from the U.S. Treasury and instruments that are supported solely by the credit of the instrumentality or government-sponsored enterprise. Because the U.S. Government is not obligated by law to provide support to an instrumentality it sponsors, a Fund will invest in obligations issued by such an instrumentality only if Credit Suisse determines that the credit risk with respect to the instrumentality does not make its securities unsuitable for investment by the Fund.

In September 2008, Fannie Mae and Freddie Mac were placed in conservatorship by their regulator, the Federal Housing Finance Agency. Although the U.S. government has provided financial support to Fannie Mae and Freddie Mac, there can be no assurance that it will support these or other government-sponsored enterprises in the future.

Variable and Floating Rate Securities and Master Demand Notes

Variable and floating rate securities provide for a periodic adjustment in the interest rate paid on the obligations. The terms of such obligations provide that interest rates are adjusted periodically based upon an interest rate adjustment index as provided in the respective obligations. The adjustment intervals may be regular, and range from daily up to annually, or may be event based, such as based on a change in the prime rate.

A Fund may invest in floating rate debt instruments (“floaters”) and engage in credit spread trades. The interest rate on a floater is a variable rate which is tied to another interest rate, such as a money-market index or Treasury bill rate. The interest rate on a floater resets periodically, typically every six months. While, because of the interest rate reset feature, floaters provide the Fund with a certain degree of protection against rises in interest rates, the Fund will participate in any declines in interest rates as well. A credit spread trade is an investment position relating to a difference in the prices or interest rates of two securities or currencies, where the value of the investment position is determined by movements in the difference between the prices or interest rates, as the case may be, of the respective securities or currencies.

A Fund may also invest in inverse floating rate debt instruments (“inverse floaters”). The interest rate on an inverse floater resets in the opposite direction from the market rate of interest to which the inverse floater is indexed. An inverse floating rate security may exhibit greater price volatility than a fixed rate obligation of similar credit quality.

VRDNs are obligations issued by corporate or governmental entities which contain a floating or variable interest rate adjustment formula and an unconditional right of demand to receive payment of the unpaid principal balance plus accrued interest upon a short notice period not to exceed seven days. The interest rates are adjustable at intervals ranging from daily to up to every six months to some prevailing market rate for similar investments, such adjustment formula being calculated to maintain the market value of the VRDN at approximately the par value of the VRDN upon the adjustment date. The adjustments are typically based upon the prime rate of a bank or some other appropriate interest rate adjustment index.

Master demand notes are notes which provide for a periodic adjustment in the interest rate paid (usually tied to the Treasury Bill auction rate) and permit daily changes in the principal amount borrowed. While there may be no active secondary market with respect to a particular VRDN purchased by the Fund, the Fund may, upon the notice specified in the note, demand payment of the principal of and accrued interest on the note at any time and may resell the note at any time to a third party. The absence of such an active secondary market, however, could make it difficult for the Fund to dispose of the VRDN involved in the event the issuer of the note defaulted on its payment obligations, and the Fund could, for this or other reasons, suffer a loss to the extent of the default.

Warrants

A Fund may purchase warrants issued by domestic and foreign companies to purchase newly created equity securities consisting of common and preferred stock. The equity security underlying a warrant is outstanding at the time the warrant is issued or is issued together with the warrant.

Investing in warrants can provide a greater potential for profit or loss than an equivalent investment in the underlying security, and, thus, can be a speculative investment. The value of a warrant may decline because of a decline in the value of the underlying security, the passage of time, changes in interest rates or in the dividend or other policies of the company whose equity underlies the warrant or a change in the perception as to the future price of the underlying security, or any combination thereof. Warrants generally pay no dividends and confer no voting or other rights, except for the right to purchase the underlying security.

When-Issued Securities and Delayed-Delivery Transactions

A Fund may utilize its assets to purchase securities on a “when-issued” basis or purchase or sell securities for delayed delivery (i.e., payment or delivery occur beyond the normal settlement date at a stated price and yield). A Fund will enter into a when-issued transaction for the purpose of acquiring portfolio securities and not for the purpose of leverage, but may sell the securities before the settlement date if Credit Suisse deems it advantageous to do so. The payment obligation and the interest rate that will be received on when-issued securities are fixed at the time the buyer enters into the commitment. Due to fluctuations in the value of securities purchased or sold on a when-issued or delayed-delivery basis, the yields obtained on such securities may be higher or lower than the yields available in the market on the dates when the investments are actually delivered to the buyers.

Rule 18f-4 under the 1940 Act permits a Fund to enter into when-issued or forward-settling securities (e.g., firm and standby commitments, including TBA commitments, and dollar rolls) and nonstandard settlement cycle securities notwithstanding the limitation on the issuance of senior securities in Section 18 of the 1940 Act, provided that the Fund intends to physically settle the transaction and the transaction will settle within 35 days of its trade date (the “Delayed-Settlement Securities Provision”). If a when-issued, forward-settling or non-standard settlement cycle security does not satisfy the Delayed-Settlement Securities Provision, then it is treated as a derivatives transaction under Rule 18f-4. See “—Regulatory Aspects of Derivatives Instruments—Rule 18f-4 under the 1940 Act” below.

Zero Coupon Securities

A Fund may invest without limit in “zero coupon” U.S. Treasury, foreign government and U.S. and foreign corporate convertible and nonconvertible debt securities, which are bills, notes and bonds that have been stripped of their unmatured interest coupons and custodial receipts or certificates of participation representing interests in such stripped debt obligations and coupons. A zero coupon security pays no interest to its holder prior to maturity. Accordingly, such securities usually trade at a deep discount from their face or par value and will be subject to greater fluctuations of market value in response to changing interest rates than debt obligations of comparable maturities that make current distributions of interest. Federal tax law requires that a holder of a zero coupon security accrue a portion of the discount at which the security was purchased as income each year, even though the holder receives no interest payment on the security during the year. Such accrued discount will be includible in determining the amount of dividends the Fund must pay each year and, in order to generate cash necessary to pay such dividends, the Fund may liquidate portfolio securities at a time when it would not otherwise have done so. See “Additional Information Concerning Taxes.” At present, the U.S. Treasury and certain U.S. agencies issue stripped Government Securities. In addition, a number of banks and brokerage firms have separated the principal portions from the coupon portions of U.S. Treasury bonds and notes and sold them separately in the form of receipts or certificates representing undivided interests in these instruments.

Government Zero Coupon Securities. A Fund may invest in (i) Government Securities that have been stripped of their unmatured interest coupons, (ii) the coupons themselves and (iii) receipts or certificates representing interests in stripped Government Securities and coupons (collectively referred to as “Government zero coupon securities”).

Regulatory Aspects of Derivatives Instruments

Credit Suisse is registered as a “commodity pool operator” under the Commodity Exchange Act (“CEA“) with respect to each of the Commodity Return Strategy Fund, the Managed Futures Strategy Fund and the Multialternative Strategy Fund. The disclosures and operations of these Funds must comply with all applicable CFTC regulations. Compliance with these additional regulatory requirements affects each such Fund’s regulatory compliance costs. Pursuant to a notice of eligibility filed with the CFTC with respect to each of the Floating Rate High Income Fund and the Strategic Income Fund, Credit Suisse is not deemed to be a “commodity pool operator” under the CEA with respect to these Funds, and therefore is not subject to registration as such under the CEA. Credit Suisse is not required to be registered as a “commodity trading advisor” with respect to its service as the investment manager to the Funds.

Transactions in options by a Fund are subject to limitations established by each of the exchanges governing the maximum number of options that may be written or held by a single investor or group of investors acting in concert, regardless of whether the options were written or purchased on the same or different exchanges or are held in one or more accounts or through one or more exchanges or brokers. Thus, the number of options a Fund may write or hold may be affected by options written or held by other entities, including other investment companies having the same or an affiliated investment adviser. The CFTC and certain U.S. exchanges have established limits, referred to as “speculative position limits,” on the maximum net long or net short position that any person, or group of persons acting together, may hold or control in particular futures, options on futures contracts and swaps that perform a significant price discovery function, regardless of whether the contracts were written or purchased on the same or different exchanges or are held in one or more accounts or through one or more exchanges or brokers.  Transactions in certain futures, options on futures, and swaps by the Fund are subject to these speculative position limits.  Thus, the number of futures contracts or options on futures the Fund may write or hold may be affected by futures or options on futures written or held by other entities, including other accounts advised by Credit Suisse. Position limits also apply to futures. An exchange may order the liquidation of positions found to be in violation of those limits and may impose certain other sanctions.

Rule 18f-4 Under the 1940 Act

Rule 18f-4 under the Investment Company Act permits a Fund to enter into Derivatives Transactions (as defined below) and certain other transactions notwithstanding the restrictions on the issuance of "senior securities" under Section 18 of the Investment Company Act. Section 18 of the Investment Company Act, among other things, prohibits open-end funds, including the Funds, from issuing or selling any "senior security," other than borrowing from a bank (subject to a requirement to maintain 300% "asset coverage").

Under Rule 18f-4, "Derivatives Transactions" include the following: (1) any swap, security-based swap (including a contract for differences), futures contract, forward contract, option (excluding purchased options), any combination of the foregoing, or any similar instrument, under which a Fund is or may be required to make any payment or delivery of cash or other assets during the life of the instrument or at maturity or early termination, whether as margin or settlement payment or otherwise; (2) any short sale borrowing; (3) reverse repurchase agreements and similar financing transactions (e.g., recourse and nonrecourse tender option bonds, and borrowed bonds), if a Fund elects to treat these transactions as Derivatives Transactions under Rule 18f-4; and (4) when-issued or forward-settling securities (e.g., firm and standby commitments, including to-be-announced ("TBA") commitments, and dollar rolls) and non-standard settlement cycle securities, unless such transactions meet the Delayed-Settlement Securities Provision (as defined below under " -- When-Issued Securities and Delayed Delivery Transactions").

Unless a Fund is relying on the Limited Derivatives User Exception (as defined below), the Fund must comply with Rule 18f-4 with respect to its Derivatives Transactions. Rule 18f-4, among other things, requires a Fund to adopt and implement a comprehensive written derivatives risk management program ("DRMP") and comply with a relative or absolute limit on Fund leverage risk calculated based on value-at-risk ("VaR"). The DRMP is administered by a "derivatives risk manager," who is appointed by the Fund's Board, including a majority of the independent Directors, and periodically reviews the DRMP and reports to the Fund's Board.

Rule 18f-4 provides an exception from the DRMP, VaR limit and certain other requirements if a Fund's "derivatives exposure" is limited to 10% of its net assets (as calculated in accordance with Rule 18f-4) and the Fund adopts and implements written policies and procedures reasonably designed to manage its derivatives risks (the "Limited Derivatives User Exception").

Regulation of OTC Derivatives.

The Dodd-Frank Wall Street Reform and Consumer Protection Act (“Dodd-Frank”), enacted in July 2010, included provisions that comprehensively regulated OTC derivatives.  Dodd-Frank provided that the CFTC regulate “swaps” and that the SEC regulate “security based swaps.” Swaps include, among other things, OTC derivatives on interest rates, commodities, broad-based securities indexes, including broad-based credit default swap indexes, and currency. Security-based swaps include, among other things, OTC derivatives on single securities, baskets of securities, or narrow-based indexes, or on loans and single-name or narrow-based indexes of credit default swaps.

Dodd-Frank authorized the SEC and the CFTC to mandate that a substantial portion of OTC derivatives must be executed in regulated markets and be submitted for clearing to regulated clearinghouses and directed the SEC and CFTC to establish documentation, and dealer and major participant registration requirements for derivatives that continued to trade on the over-the-counter market. Dodd-Frank also directed the SEC, with respect to security-based swaps traded by non-banking entities, the CFTC, with respect to swaps traded by non-banking entities, and the U.S. bank regulators (the “Prudential Regulators”), with respect to security-based swaps and swaps traded by banking entities, to develop margin rules for OTC derivatives and capital rules for regulated dealers and major participants.

As a result of these regulations, several types of CFTC-regulated swaps are required to be traded on swap execution facilities and cleared through a regulated designated clearing organization (“DCO”). Swaps submitted for clearing are subject to minimum initial and variation margin requirements set by the relevant DCO.

In addition, swap dealers are required to post and collect variation margin from a fund and may be required by applicable regulations to collect initial margin from a fund in connection with trading of over-the-counter ("OTC") swaps with a fund. Both initial and variation margin may be comprised of cash and/or securities, subject to applicable regulatory haircuts. Shares of investment companies (other than certain money market funds) may not be posted as collateral under these regulations. Further, regulations adopted by prudential regulators that are now in effect require certain bank-regulated counterparties and certain of their affiliates to include in certain financial contracts, including many derivatives contracts, terms that delay or restrict the rights of counterparties, such as a fund, to terminate such contracts, foreclose upon collateral, exercise other default rights or restrict transfers of credit support in the event that the counterparty and/or its affiliates are subject to certain types of resolution or insolvency proceedings.

As a contractual matter, OTC derivatives dealers typically demand the unilateral ability to increase a counterparty’s collateral requirements for cleared OTC derivatives beyond any regulatory and clearinghouse minimums and for OTC derivatives beyond any regulatory minimums. The regulators also have broad discretion to impose margin requirements on cleared and non-cleared derivatives.

These requirements may increase the amount of collateral the Fund is required to provide and the costs associated with providing it.  OTC derivative dealers also are required to post margin to the clearinghouses through which they clear their customers’ trades instead of using such margin in their operations, as was widely permitted before Dodd-Frank.  This has and will continue to increase the OTC derivative dealers’ costs, and these increased costs may be passed through to the Fund in the form of higher upfront and mark-to-market margin, less favorable trade pricing, and the imposition of new or increased fees, including clearing account maintenance fees. As required by the 1940 Act, margin posted by the Fund directly to a dealer in respect to an OTC derivative, will be posted through the fund’s custodian pursuant to a tri-party agreement. Margin posted by the Fund to a DCO, however, is posted directly to the Portfolio’s futures commission merchant that is the applicable member of the DCO for posting to the clearing house.

OTC derivatives are subject to counterparty risk, whereas the exposure to default for cleared derivatives is assumed by the exchange’s clearinghouse.  However, the Fund will not face a clearinghouse directly but rather through an OTC derivatives dealer that is registered with the CFTC or SEC to act as a clearing member.  The Fund may therefore face the indirect risk of the failure of another clearing member customer to meet its obligations to its clearing member, although the CFTC’s LSOC regulations generally mitigate much of the “fellow customer” bankruptcy risk that is applicable to cleared futures.  Such requirements may make it more difficult and costly for the Fund to enter into highly tailored or customized transactions.  They may also render certain strategies in which the Fund might otherwise engage impossible or so costly that they will no longer be economical to implement.

Swap dealers and major swap participants are now required to register with the CFTC and security-based swap dealers and major security-based swap participants, are required to register with the SEC.  Swap dealers and security-based swap dealers are subject to business conduct standards, disclosure requirements, reporting and recordkeeping requirements, transparency requirements, position limits, limitations on conflicts of interest, and other regulatory burdens.  These requirements further increase the overall costs for dealers in both cleared and OTC derivatives, which costs may be passed along to the Fund as market changes continue to be implemented.  The overall impact of these Dodd-Frank-related regulations on the Fund remains highly unclear.

In addition, regulations adopted by Prudential Regulators that are now in effect require certain bank-regulated counterparties and certain of their affiliates to include in certain financial contracts, including many derivatives contracts, terms that delay or restrict the rights of counterparties, such as the Portfolio, to terminate such contracts, foreclose upon collateral, exercise other default rights or  restrict transfers of credit support in the event that the counterparty and/or its affiliates are subject to certain types of resolution or insolvency proceedings.  It is possible that these new requirements, as well as potential additional government regulation and other developments in the market, could adversely affect the Fund’s ability to terminate existing derivatives agreements or to realize amounts to be received under such agreements.

In addition, the CFTC and the United States commodities exchanges has historically imposed limits referred to as “speculative position limits” on the maximum net long or net short speculative positions that any person may hold or control in any particular futures or options contracts traded on United States commodities exchanges.  For example, the CFTC currently imposes speculative position limits on a number of agricultural commodities (e.g., corn, oats, wheat, soybeans and cotton) and United States commodities exchanges currently impose speculative position limits on many other commodities.  Dodd-Frank significantly expanded the CFTC’s authority to impose position limits with respect to futures contracts and options on futures contracts, swaps that are economically equivalent to futures or options on futures, and swaps that are traded on a regulated exchange and certain swaps that perform a significant price discovery function.  In response to this expansion of its authority, in 2011, the CFTC proposed a series of new speculative position limits with respect to futures and options on futures on certain “exempt commodities” (which included the most liquid energy and metals contracts) and with respect to certain agricultural commodities, but those proposed speculative position limits were vacated in 2012 by a United States District Court.  In October 2020, the CFTC adopted new speculative position limits with respect to futures and options on futures on many physical commodities, including energy metals and agricultural commodities (the “core referenced futures contracts"), and on economically equivalent swaps. An economically equivalent swap is a swap with identical material contractual specifications, terms and conditions to a core referenced futures contract, disregarding differences with respect to any of the following: (1) lot size specifications or notional amounts, (2) post-trade risk management arrangements and (3) delivery dates for physically-settled swaps as long as these delivery dates diverge by less than one calendar day from the referenced contract’s delivery date (or, for natural gas, two calendar days). A cash-settled swap could only be deemed to be economically equivalent to a cash-settled referenced contract, and a physically-settled swap could only be deemed to be economically equivalent to a physically-settled referenced contract. However, a cash-settled swap that initially did not qualify as economically equivalent due to the fact that there was no corresponding cash-settled core referenced futures contract could subsequently become an economically equivalent swap if a cash-settled futures contract market were to subsequently be developed. The CFTC’s new position limits rules include an exemption from limits for bona fide hedging transactions or positions. A bona fide hedging transaction or position may exceed the applicable federal position limits if the transaction or position: (1) represents a substitute for transactions or positions made or to be made at a later time in a physical marketing channel; (2) is economically appropriate to the reduction of price risks in the conduct and management of a commercial enterprise; and (3) arises from the potential change in value of (A) assets which a person owns, produces, manufactures, processes or merchandises, or anticipates owning, producing, manufacturing, processing or merchandising; (B) liabilities which a person owes or anticipates incurring; or (C) services that a person provides or purchases, or anticipates providing or purchasing. The CFTC’s new position rules set forth a list of enumerated bona fide hedges for which a market participant is not required to request prior approval from the CFTC in order to hold a bona fide hedge position above the federal position limit. However, a market participant holding an enumerated bona fide hedge position still would need to request an exemption from the relevant exchange for exchange-set limits. For non-enumerated bona fide hedge positions, a market participant may request CFTC approval which must be granted prior to exceeding the applicable federal position limit, except where there is a demonstrated sudden or unforeseen increase in bona fide hedging needs (in which case the application must be submitted within five business days after the market participant exceeds the applicable limit). The compliance dates for the CFTC’s new federal speculative position limits was January 1, 2022 for the core referenced futures contracts and was January 1, 2023 for economically equivalent swaps. As a consequence of these new position limits, the size or duration of positions available to a Fund may be severely limited.  All accounts owned or managed by the Manager are likely to be combined for speculative position limit purposes.  A Fund could be required to liquidate positions it holds in order to comply with such limits, or may not be able to fully implement trading instructions generated by its trading models, in order to comply with such limits.  Any such liquidation or limited implementation could result in substantial costs to a Fund.

Liquidity Risk Management

Rule 22e-4 under the 1940 Act (the “Liquidity Rule”), requires open-end funds, such as the Funds, to establish a liquidity risk management program and make certain disclosures regarding fund liquidity. As required by the Liquidity Rule, the Funds have implemented a liquidity risk management program (the “Liquidity Program”), and the Board has appointed Credit Suisse as the liquidity risk program administrator of the Liquidity Program. Under the Liquidity Program, Credit Suisse assesses, manages and periodically reviews each Fund’s liquidity risk and classifies each investment held by each Fund as a “highly liquid investment,” “moderately liquid investment,” “less liquid investment” or “illiquid investment.” The Liquidity Rule defines “liquidity risk” as the risk that a Fund could not meet requests to redeem shares issued by the Fund without significant dilution of the remaining investors’ interests in the Fund. The liquidity of a Fund’s portfolio investments is determined based on relevant market, trading and investment-specific considerations under the Liquidity Program. To the extent that an investment is deemed to be an illiquid investment or a less liquid investment, a Fund can expect to be exposed to greater liquidity risk.

INVESTMENT RESTRICTIONS

The following fundamental investment restrictions numbered 1 through 8 are applicable to each Fund (unless otherwise indicated) and may not be changed without the affirmative vote of the holders of a majority of the Fund’s outstanding shares. Such majority is defined as the lesser of (a) 67% or more of the shares present at the meeting, if holders of more than 50% of the outstanding shares of the Fund are present or represented by proxy, or (b) more than 50% of the outstanding shares.

Except as set forth in the Prospectus and this Statement of Additional Information, all other investment policies or practices are considered by a Fund not to be fundamental and accordingly may be changed without shareholder approval. The non-fundamental investment restrictions numbered 9 through 11 are applicable only to the Commodity Return Strategy Fund may be changed by a vote of the Board at any time. If a percentage restriction (other than the percentage limitation set forth in number 1) is adhered to at the time of investment, a later increase or decrease in percentage resulting from a change in values or assets will not constitute a violation of such restriction.

Fundamental Investment Restrictions

Each Fund (unless otherwise indicated) may not:

1. Borrow money, except to the extent permitted under the 1940 Act;

2. (Commodity Return Strategy Fund only) Purchase any securities which would cause 25% or more of the value of the Fund’s total assets at the time of purchase to be invested in the securities of issuers conducting their principal business activities in the same industry; provided that (a) there shall be no limit on the purchase of U.S. government securities; (b) 25% or more of the Fund’s assets may be indirectly exposed to industries in commodity sectors of an index, and (c) the Fund may invest more than 25% of its total assets in instruments (such as structured notes) issued by companies in the financial services sectors (which includes the banking, brokerage and insurance industries);

(Floating Rate High Income Fund only) Invest 25% or more of the value of its total assets in any one industry, other than the United States Government, or any of its agencies or instrumentalities, provided that, for purposes of this policy, consumer finance companies, industrial finance companies and gas, electric, water and telephone utility companies are each considered to be separate industries;

(Strategic Income Fund only) Invest 25% or more of the value of its total assets in any one industry or group of industries, other than the United States Government, or any of its agencies or instrumentalities;

(Managed Futures Strategy Fund and Multialternative Strategy Fund only) Invest 25% or more of the value of its total assets in any one industry or group of industries, other than the United States Government, or any of its agencies or instrumentalities, except that if the Managed Futures Liquid Index, in the case of the Managed Futures Strategy Fund, the Liquid Alternative Beta Index, in the case of the Multialternative Strategy Fund, is or becomes concentrated in a particular industry or group of industries, the Fund’s investments will exceed this 25% limitation to the extent that it is necessary to gain exposure to that industry or group of industries to track the applicable Index;

3. Make loans except through loans of portfolio securities, entry into repurchase agreements, acquisitions of securities consistent with its investment objective and policies and as otherwise permitted by the 1940 Act;

4. (Commodity Return Strategy Fund only) Underwrite any securities issued by other issuers, except to the extent that the investment in restricted securities and the sale of securities in accordance with the Fund’s investment objective, policies and limitations may be deemed to be underwriting;

(All Other Funds) Underwrite the securities of other issuers, except to the extent that in connection with the disposition of portfolio securities the Fund may be deemed to be an underwriter;

5. Purchase or sell real estate, provided that the Fund may invest in securities secured by real estate or interests therein or issued by companies that invest or deal in real estate or interests therein or are engaged in the real estate business, including real estate investment trusts;

6. (Strategic Income Fund, Managed Futures Strategy Fund and Multialternative Strategy Fund only) Purchase or sell commodities or commodities contracts except to the extent permitted by applicable law;

(Commodity Return Strategy Fund only) Purchase or sell physical commodities unless acquired as a result of ownership of securities or other instruments. This restriction shall not prevent the Fund from purchasing or selling commodity-linked derivative instruments, including but not limited to swap agreements and commodity-linked structured notes, options and futures contracts with respect to indices or individual commodities, or from investing in securities or other instruments backed by physical commodities or by indices;

(Floating Rate High Income Fund only) Purchase or sell commodities or commodities contracts except for purposes, and only to the extent, permitted by applicable law without the Fund becoming subject to registration with the Commodity Futures Trading Commission as a commodity pool;

7. (Floating Rate High Income Fund, Strategic Income Fund, Managed Futures Strategy Fund and Multialternative Strategy Fund only) Issue senior securities, except as permitted under the 1940 Act;

(Commodity Return Strategy Fund) Issue any senior security, except as permitted in these Investment Restrictions;

8. (Strategic Income Fund only) Make any investment inconsistent with the Fund’s classification as a diversified company under the 1940 Act;

Non-Fundamental Investment Restrictions

The Commodity Return Strategy Fund may not:

9. Pledge, mortgage or hypothecate its assets, except to the extent necessary to secure permitted borrowings and to the extent related to the deposit of assets in escrow in connection with the writing of covered put and call options and purchase of securities on a forward commitment or delayed-delivery basis and collateral and initial or variation margin arrangements with respect to currency transactions, options, futures contracts, options on futures contracts, swaps and other derivative instruments.

10. Invest more than 15% of the value of the Fund’s net assets in investments that the Fund reasonably expects cannot be sold in seven calendar days or less without significantly changing the market value of the investment.

11. Make additional investments (including roll-overs) if the Fund’s borrowings exceed 5% of its net assets.

With respect to investment restriction 2 above, the Multialternative Strategy Fund will not concentrate in a particular industry or group of industries if the Liquid Alternative Beta Index is or becomes so concentrated.

Each Subsidiary will follow the applicable Fund’s fundamental and non-fundamental investment restrictions, described above, with respect to its investments.

PORTFOLIO VALUATION

The net asset value (“NAV”) of each class of each Fund is determined daily as of the close of regular trading (normally 4 p.m. eastern time) on the New York Stock Exchange, Inc. (the “NYSE”) on each day the NYSE is open for business. As of the date of this SAI, the NYSE is normally open for trading every weekday except in the event of an emergency or for the following holidays (or the days on which they are observed): New Year’s Day, Martin Luther King, Jr. Day, Presidents’ Day, Good Friday, Memorial Day, Juneteenth, Independence Day, Labor Day, Thanksgiving Day and Christmas Day. Please see the Prospectus for a description of the procedures used in the valuation of Fund assets. Credit Suisse, as the Board's valuation designee (as defined in Rule 2a-5 under the 1940 Act), is responsible for fair valuing Fund assets.

Trading in securities in certain foreign countries is completed at various times prior to the close of business on each business day in New York (i.e., a day on which the NYSE is open for trading). In addition, securities trading in a particular country or countries may not take place on all business days in New York. Furthermore, trading takes place in various foreign markets on days that are not business days in New York and days on which a Fund’s net asset value is not calculated. As a result, calculation of a Fund’s net asset value may not take place contemporaneously with the determination of the prices of certain foreign portfolio securities used in such calculation. All assets and liabilities initially expressed in foreign currency values will be converted into U.S. dollar values at the prevailing rate as quoted by a pricing service approved by the Board at the close of the London Stock Exchange. If such quotations are not available, the rate of exchange will be determined in good faith by Credit Suisse in accordance with its valuation policies.

PORTFOLIO TRANSACTIONS

Credit Suisse is responsible for establishing, reviewing and, where necessary, modifying a Fund’s investment program to achieve its investment objectives. Credit Suisse has retained Credit Suisse UK to act as subadviser for the Strategic Income Fund. Purchases and sales of newly issued portfolio securities are usually principal transactions without brokerage commissions effected directly with the issuer or with an underwriter acting as principal. Other purchases and sales may be effected on a securities exchange or over-the-counter, depending on where it appears that the best price or execution will be obtained. The purchase price paid by the Fund to underwriters of newly issued securities usually includes a concession paid by the issuer to the underwriter, and purchases of securities from dealers, acting as either principals or agents in the after market, are normally executed at a price between the bid and asked price, which includes a dealer’s mark-up or mark-down. Transactions on U.S. stock exchanges and some foreign stock exchanges involve the payment of negotiated brokerage commissions. On exchanges on which commissions are negotiated, the cost of transactions may vary among different brokers. On most foreign exchanges, commissions are generally fixed. There is generally no stated commission in the case of securities traded in domestic or foreign over-the-counter markets, but the price of securities traded in over-the-counter markets includes an undisclosed commission or mark-up. U.S. Government securities are generally purchased from underwriters or dealers, although certain newly issued U.S. government securities may be purchased directly from the U.S. Treasury or from the issuing agency or instrumentality. No brokerage commissions are typically paid on purchases and sales of U.S. government securities.

Credit Suisse will select portfolio investments and effect transactions for each Fund. In selecting broker-dealers, Credit Suisse does business exclusively with those broker-dealers that, in its judgment, can be expected to provide the best service. The service has two main aspects: the execution of buy and sell orders and the provision of research. In negotiating commissions with broker-dealers, Credit Suisse will pay no more for execution and research services than it considers either, or both together, to be worth. The worth of execution service depends on the ability of the broker-dealer to minimize costs of securities purchased and to maximize prices obtained for securities sold. The worth of research depends on its usefulness in optimizing portfolio composition and its changes over time. Commissions for the combination of execution and research services that meet Credit Suisse’s standards may be higher than for execution services alone or for services that fall below Credit Suisse’s standards. Credit Suisse believes that these arrangements may benefit all clients and not necessarily only the accounts in which the particular investment transactions occur that are so executed. Further, Credit Suisse will receive brokerage or research services only in connection with securities transactions that are consistent with the “safe harbor” provisions of Section 28(e) of the Securities Exchange Act of 1934 (the “Exchange Act”) when paying such higher commissions. Research services may include research on specific industries or companies, macroeconomic analyses, analyses of national and international events and trends, evaluations of thinly traded securities, computerized trading screening techniques and securities ranking services, and general research services. For the fiscal year ended October 31, 2022, the Funds did not pay any brokerage commissions to brokers and dealers who provided research services. Research received from brokers or dealers is supplemental to the Manager’s own research program.

The Commodity Return Strategy Fund paid $29,771, $52,642 and $135,426 in commissions to broker-dealers for execution of portfolio transactions during the fiscal years ended October 31, 2020, 2021 and 2022, respectively. The Floating Rate High Income Fund paid $127, $196 and $1,981 in commissions to broker-dealers for execution of portfolio transactions during the fiscal years ended October 31, 2020, 2021 and 2022, respectively. The Strategic Income Fund paid $4,624, $15,441 and $7,267 in commissions to broker-dealers for execution of portfolio transactions during the fiscal years ended October 31, 2020, 2021 and 2022, respectively. The Managed Futures Strategy Fund paid $301,191, $336,392 and $431,370 in commissions to broker-dealers for execution of portfolio transactions during the fiscal year ended October 31, 2020, 2021 and 2022, respectively. The Multialternative Strategy Fund paid $152,278, $65,758 and $166,150 in commissions to broker-dealers for execution of portfolio transactions during the fiscal years ended October 31, 2020, 2021 and 2022, respectively.

All orders for transactions in securities or options on behalf of the Funds are placed by Credit Suisse with broker-dealers that it selects, including Credit Suisse Securities (USA) LLC (“CSSU”), the Funds’ distributor and an affiliate of Credit Suisse, and other affiliates of Credit Suisse Group AG. The Funds may utilize CSSU or other affiliates of Credit Suisse Group AG in connection with a purchase or sale of securities when Credit Suisse believes

that the charge for the transaction does not exceed usual and customary levels and when doing so is consistent with guidelines adopted by the Board.

The Funds did not pay any commissions to affiliated broker-dealers during the fiscal years ended October 31, 2020, 2021 and 2022.

Investment decisions for the Funds concerning specific portfolio securities are made independently from those for other clients advised by Credit Suisse. Such other investment clients may invest in the same securities as the Funds. When purchases or sales of the same security are made at substantially the same time on behalf of such other clients, transactions are averaged as to price and available investments allocated as to amount, in a manner which Credit Suisse believes to be equitable to each client, including the Funds. In some instances, this investment procedure may adversely affect the price paid or received by a Fund or the size of the position obtained or sold for the Fund. To the extent permitted by law, Credit Suisse may aggregate the securities to be sold or purchased for a Fund with those to be sold or purchased for such other investment clients in order to obtain best execution.

Transactions for the Funds may be effected on foreign securities exchanges. In transactions for securities not actively traded on a foreign securities exchange, the Funds will deal directly with the dealers who make a market in the securities involved, except in those circumstances where better prices and execution are available elsewhere. Such dealers usually are acting as principal for their own account. On occasion, securities may be purchased directly from the issuer. Such portfolio securities are generally traded on a net basis and do not normally involve brokerage commissions. Securities firms may receive brokerage commissions on certain portfolio transactions, including options, futures and options on futures transactions and the purchase and sale of underlying securities upon exercise of options.

A Fund may participate, if and when practicable, in bidding for the purchase of securities for the Fund’s portfolio directly from an issuer in order to take advantage of the lower purchase price available to members of such a group. A Fund will engage in this practice, however, only when Credit Suisse, in its sole discretion, believes such practice to be otherwise in the Fund’s interest.

Each Subsidiary follows the same brokerage practices as does the applicable Fund.

In no instance will portfolio securities be purchased from or sold to Credit Suisse, CSSU, or any other affiliated person of such companies, except as permitted by SEC exemptive order or by applicable law. In addition, the Funds will not give preference to any institutions with which the Funds enter into distribution or shareholder servicing agreements concerning the provision of distribution services or support services.

As of October 31, 2022, the Funds did not hold any securities of their regular broker-dealers (or parents) that were acquired during the fiscal year ended October 31, 2022.

PORTFOLIO TURNOVER

Each Fund does not intend to seek profits through short-term trading, but the rate of turnover will not be a limiting factor when the Fund deems it desirable to sell or purchase securities. Each Fund’s portfolio turnover rate is calculated by dividing the lesser of purchases or sales of its portfolio securities for the year by the monthly average value of the portfolio securities. In accordance with industry practice, derivative instruments and instruments with a maturity of one year or less at the time of acquisition are excluded from the calculation of the portfolio turnover rate.

It is not possible to predict the Funds’ portfolio turnover rates. High portfolio turnover rates (100% or more) may result in higher brokerage commissions, higher dealer markups or underwriting commissions as well as other transaction costs. In addition, gains realized from portfolio turnover may be taxable to shareholders.

For the fiscal years ended October 31, 2021 and 2022, the Commodity Return Strategy Fund's portfolio turnover rates were 22% and 68%, respectively. For the fiscal years ended October 31, 2021 and 2022, the Floating Rate High Income Fund's portfolio turnover rates were 54% and 47%, respectively. For the fiscal years ended October 31, 2021 and 2022, the Strategic Income Fund's portfolio turnover rates were 46% and 56%, respectively. For the fiscal years ended October 31, 2021 and 2022, the Managed Futures Strategy Fund's portfolio turnover rates were 0% and 0%, respectively. For the fiscal years ended October 31, 2021 and 2022, the Multialternative Strategy Fund's portfolio turnover rates were 532% and 482%, respectively.

MANAGEMENT OF THE FUNDS

Officers and Boards of Trustees

The business and affairs of the Commodity Return Strategy Fund are managed by the Board of Trustees of Credit Suisse Commodity Strategy Funds and the business and affairs of each of the Floating Rate High Income Fund, the Strategic Income Fund, the Managed Futures Strategy Fund and the Multialternative Strategy Fund are managed by the Board of Trustees of Credit Suisse Opportunity Funds, each in accordance with the laws of the State of Delaware. The Boards of Trustees are referred to herein as the “Board” and the members are referred to herein as “Trustees.” The Board approves all significant agreements between its Fund and the companies that furnish services to the Fund, including agreements with the Fund’s investment manager, custodian and transfer agent. The Board elects officers who are responsible for the day-to-day operations of the relevant Fund and who execute policies authorized by the Board.

The names and years of birth of the Trustees and officers of each of Credit Suisse Commodity Strategy Funds and Credit Suisse Opportunity Funds (together, the “Trusts” and each, a “Trust”), their addresses, present positions and principal occupations during the past five years and other affiliations are set forth below.

**  Mr. Popp is an “interested person” of the Funds, as defined in the 1940 Act, by virtue of his current position as an officer of Credit Suisse.

(1)  Subject to the Funds’ retirement policy, each Trustee may continue to serve as a Trustee until the last day of the calendar year in which the applicable Trustee attains age 75. The Board may determine to extend the terms of Trustees beyond age 75 on a case-by-case basis.

(2)  The Credit Suisse Fund Complex consists of the Trusts and their series, as applicable, Credit Suisse Trust and its portfolio, Credit Suisse High Yield Bond Fund and Credit Suisse Asset Management Income Fund, Inc.

Each Board believes that each Trustee’s experience, qualifications, attributes or skills on an individual basis and in combination with those of the other Trustees lead to the conclusion that each Trustee should serve in such capacity. Among the attributes common to all Trustees are their ability to review critically, evaluate, question

and discuss information provided to them, to interact effectively with the other Trustees, Credit Suisse, other service providers, counsel and the independent registered public accounting firm, and to exercise effective business judgment in the performance of their duties as Trustees. A Trustee’s ability to perform his or her duties effectively may have been attained through the Trustee’s business, consulting, public service and/or academic positions; experience from service as a board member of the Funds and the other funds in the Fund Complex, other investment funds, public companies, or non-profit entities or other organizations; educational background or professional training; and/or other life experiences. In addition to these shared characteristics, set forth below is a brief discussion of the specific experience, qualifications, attributes or skills of each Trustee that support the conclusion that each person should serve as a Trustee.

Laura A. DeFelice. Ms. DeFelice has been a Trustee since 2017 of all of the open-end Credit Suisse Funds in the Fund Complex. Ms. DeFelice is the founding principal of two companies, one focusing on multi-family and commercial real estate ownership, leasing and management and the other focusing on renewable energy project development. She has over 25 years of business experience in the financial services industry, including as a law firm partner specializing in structured finance. Ms. DeFelice also serves on the board of directors/trustees of the closed-end Credit Suisse Funds.

Mahendra R. Gupta. Mr. Gupta has been a Trustee since 2017, and Chairman of the Audit Committee since 2017 of all of the open-end Credit Suisse Funds in the Fund Complex. Mr. Gupta is a Professor at Washington University in St. Louis. He has over 25 years of academic experience as a professor of accounting and management. Mr. Gupta also serves on the board of directors/trustees of the closed-end Credit Suisse Funds.

Samantha Kappagoda. Ms. Kappagoda has been a Trustee since January 1, 2023 of all of the open-end Credit Suisse Funds in the Fund Complex. Ms. Kappagoda is the Chief Economist and Co-Founder of Risk Economics, Inc. and Co-Managing Member of Numerati Partners LLC. She has over thirty years of experience as an economist. Ms. Kappagoda also serves on the board of directors/trustees of the closed-end Credit Suisse Funds.

John G Popp.  Mr. Popp has been a Trustee since 2017 of all of the open-end Credit Suisse Funds in the Fund Complex. Mr. Popp is a Managing Director of Credit Suisse and Global Head and Chief Investment Officer of the Credit Suisse Credit Investments Group. Mr. Popp has been associated with Credit Suisse since 1997. He has over 30 years of business experience in the financial services industry. Mr. Popp also serves on the board of directors/trustees of the closed-end Credit Suisse Funds.

Steven N. Rappaport. Mr. Rappaport has been a Trustee since 1999, Chairman of the Board of Trustees since 2005, and Chairman of the Nominating Committee since 2005, of all of the open-end Credit Suisse Funds in the Fund Complex. In addition, he has over 30 years of business experience in the financial services industry. Mr. Rappaport also serves on the boards of directors of other registered investment companies, including closed-end funds in the Fund Complex.

Specific details regarding each Trustee’s principal occupations during the past five years are included in the table above.

Ownership in Securities of the Funds and Fund Complex

As reported to the Funds, the information in the following table reflects beneficial ownership by the Trustees of certain securities as of December 31, 2022.

* Key to Dollar Ranges:

A. None

B. $1 - $10,000

C. $10,001 - $50,000

D. $50,001 - $100,000

E. Over $100,000

(1)         Beneficial ownership is determined in accordance with Rule 16a-1(a)(2) under the Exchange Act.

(2)         Ms. Kappagoda was appointed as a Trustee of each Trust effective January 1, 2023.

Leadership Structure and Oversight Responsibilities

Overall responsibility for oversight of each Fund rests with the applicable Board. Each Fund has engaged Credit Suisse to manage the Fund on a day-to day basis. The applicable Board is responsible for overseeing Credit Suisse, Credit Suisse UK (solely with respect to the Strategic Income Fund) and other service providers in the operations of the Fund in accordance with the provisions of the 1940 Act, applicable provisions of state and other laws and the Fund’s charter. Each Board is currently composed of four members, each of whom is a Trustee, who is not an “interested person” of the Fund as defined in the 1940 Act (“Independent Trustee”). Each Board meets in-person at regularly scheduled quarterly meetings each year. In addition, each Board may hold special in-person or telephonic meetings or informal conference calls to discuss specific matters that may arise or require action between regular meetings. As described below, each Board has established a Nominating Committee and an Audit Committee, and may establish ad hoc committees or working groups from time to time, to assist the Board in fulfilling its oversight responsibilities. The Independent Trustees also have engaged independent legal counsel to assist them in performing their oversight responsibilities.

Each Board has appointed Steven N. Rappaport, an Independent Trustee, to serve in the role of Chairman. The Chairman’s role is to preside at all meetings of the Board and to act as a liaison with Credit Suisse, counsel and other Trustees generally between meetings. The Chairman serves as a key point person for dealings between management and the Trustees. The Chairman also may perform such other functions as may be delegated by the Board from time to time. Each Board reviews matters related to its leadership structure annually. Each Board has determined that the Board’s leadership structure is appropriate because it allows the Board to exercise informed and independent judgment over the matters under its purview and it allocates areas of responsibility among committees of Trustees and the full Board in a manner that enhances effective oversight.

The Funds are subject to a number of risks, including investment, compliance, operational and valuation risks, among others. Risk oversight forms part of each Board’s general oversight of the Fund and is addressed as part of various Board and committee activities. Day-to-day risk management functions are subsumed within the responsibilities of Credit Suisse, Credit Suisse UK (solely with respect to the Strategic Income Fund) and other service providers (depending on the nature of the risk), which carry out the Funds’ investment management and business affairs. Credit Suisse, Credit Suisse UK (solely with respect to the Strategic Income Fund) and other service providers employ a variety of processes, procedures and controls to identify various events or circumstances that give rise to risks, to lessen the probability of their occurrence and/or to mitigate the effects of such events or circumstances if they do occur. Each of Credit Suisse, Credit Suisse UK (solely with respect to the Strategic Income Fund) and other service providers have their own independent interest in risk management, and their policies and methods of risk management will depend on their functions and business models. Each Board recognizes that it is not possible to identify all of the risks that may affect the Fund or to develop processes and controls to eliminate or mitigate their occurrence or effects. As part of its regular oversight of the Fund, each Board interacts with and reviews reports from, among others, Credit Suisse, Credit Suisse UK (solely with respect to the Strategic Income Fund), the Fund’s Chief Compliance Officer, the Fund’s independent registered public accounting firm and counsel, as appropriate, regarding risks faced by the Fund and applicable risk controls. Each Board may, at any time and in its discretion, change the manner in which it conducts risk oversight.

Committees and Meetings of Trustees

Each Fund has an Audit Committee and a Nominating Committee. The members of the Audit Committee and the Nominating Committee consist of all the Independent Trustees, namely Messrs. Gupta and Rappaport and Mses. DeFelice and Kappagoda.

In accordance with its written charter adopted by its Board, each Audit Committee (a) assists Board oversight of the integrity of the Fund’s financial statements, the independent registered public accounting firm’s qualifications and independence, the Fund’s compliance with legal and regulatory requirements and the performance of the Fund’s independent registered public accounting firm; (b) prepares an audit committee report, if required by the SEC, to be included in the Fund’s annual proxy statement, if any; (c) oversees the scope of the annual audit of the Fund’s financial statements, the quality and objectivity of the Fund’s financial statements, the Fund’s accounting and financial reporting policies and its internal controls; (d) determines the selection, appointment, retention and termination of the Fund’s independent registered public accounting firm, as well as approving the compensation

thereof; (e) pre-approves all audit and non-audit services provided to the Fund and certain other persons by such independent registered public accounting firm; and (f) acts as a liaison between the Fund’s independent registered public accounting firm and the full Board. The Audit Committee of the Board of Trustees of Credit Suisse Commodity Strategy Funds met five times during the fiscal year ended October 31, 2022 and the Audit Committee of the Board of Trustees of Credit Suisse Opportunity Funds met five times during the fiscal year ended October 31, 2022.

In accordance with its written charter adopted by its Board, each Nominating Committee recommends to the Board persons to be nominated by the Board for election at the Fund’s meetings of shareholders, special or annual, if any, or to fill any vacancy on the Board that may arise between shareholder meetings. Each Nominating Committee also makes recommendations with regard to the tenure of Board members and is responsible for overseeing an annual evaluation of the Board and its committee structure to determine whether such structure is operating effectively. The Nominating Committee of each Board met three times during the fiscal year ended October 31, 2022.

Each Nominating Committee will consider for nomination to the Board candidates submitted by the Fund’s shareholders or from other sources it deems appropriate. Any recommendation should be submitted to the Fund’s Secretary, c/o Credit Suisse Asset Management, LLC, Eleven Madison Avenue, New York, NY 10010. Any submission should include at a minimum the following information: the name, age, business address, residence address and principal occupation or employment of such individual, the class, series and number of shares of the Fund that are beneficially owned by such individual, the date such shares were acquired and the investment intent of such acquisition, whether such shareholder believes such individual is, or is not, an “interested person” of the Fund (as defined in the 1940 Act), and information regarding such individual that is sufficient, in the Committee’s discretion, to make such determination, and all other information relating to such individual that is required to be disclosed in solicitation of proxies for election of trustees in an election contest (even if an election contest is not involved) or is otherwise required pursuant to the rules for proxy materials under the Exchange Act. If the Fund is holding a shareholder meeting, any such submission, in order to be included in the Fund’s proxy statement, should be made no later than the 120th calendar day before the date the Fund’s proxy statement was released to security holders in connection with the previous year’s annual meeting or, if the Fund has changed the meeting date by more than 30 days or if no meeting was held the previous year, within a reasonable time before the Fund begins to print and mail its proxy statement.

Effective January 1, 2023, each Trustee who is not a director, trustee, officer or employee of Credit Suisse, State Street Bank and Trust Company (“State Street”), CSSU or any of their affiliates receives an annual retainer of $105,000 for the open-end fund complex for four quarterly meetings and one special meeting and is reimbursed for expenses incurred in connection with his or her attendance at Board meetings. The Independent Chairman of the open-end fund complex receives an aggregate annual fee of $26,250 and the chairman of the Audit Committee of the open-end fund complex receives an additional $7,875 in the aggregate. Prior to January 1, 2023, each Trustee received an annual retainer of $100,000.

Trustees’ Total Compensation for Fiscal Year Ended October 31, 2022

*Mr. Garten retired as a Trustee of the Trusts effective December 31, 2022.

** Ms. Kappagoda was appointed as a Trustee of the Trusts effective January 1, 2023.

As of February 1, 2023, the Trustees and officers of each Trust as a group owned of record less than 1% of each class of the shares of each Fund.

Investment Management Agreement

Credit Suisse Asset Management, LLC, Eleven Madison Avenue, New York, New York 10010, is part of the asset management business of Credit Suisse Group AG, one of the world’s leading banks. Credit Suisse Group AG provides its clients with investment banking, private banking and wealth management services worldwide. The asset management business of Credit Suisse Group AG is comprised of a number of legal entities around the world that are subject to distinct regulatory requirements.

The investment management agreement for the Funds (the “Management Agreement”) continues in effect from year to year if such continuance is specifically approved at least annually by the vote of a majority of the Independent Trustees cast in person at a meeting called for the purpose of voting on such approval, and either by a vote of the Fund’s Board of Trustees or by a majority of the Fund’s outstanding voting securities, as defined in the 1940 Act.

Pursuant to the Management Agreement, subject to the supervision and direction of the applicable Board, Credit Suisse is responsible for managing the relevant Fund in accordance with the Fund’s stated investment objective and policies. Credit Suisse is responsible for providing investment management services as well as conducting a continual program of investment, evaluation and, if appropriate, sale and reinvestment of the Fund’s assets. Credit Suisse also provides the Funds with certain administrative services under the Management Agreement. In addition to expenses that Credit Suisse may incur in performing its services under the Management Agreement, Credit Suisse pays the compensation, fees and related expenses of all Trustees who are affiliated persons of Credit Suisse or any of its subsidiaries.

Each Fund bears certain expenses incurred in its operation, including: investment management and administration fees; taxes, interest, brokerage fees and commissions, if any; fees of Independent Trustees of the Fund; fees of any pricing service employed to value shares of the Fund; SEC fees, state Blue Sky qualification fees and any foreign qualification fees; charges of custodians and transfer and dividend disbursing agents; the Fund’s proportionate share of insurance premiums; outside auditing and legal expenses; costs of maintenance of the Fund’s existence; costs attributable to investor services, including, without limitation, telephone and personnel expenses; costs of preparing and printing prospectuses and statements of additional information for regulatory purposes and for distribution to existing shareholders; costs of shareholders’ reports and meetings of the shareholders of the Fund and of the officers or Board of Trustees of the Fund; and any extraordinary expenses. Each class of each Fund bears all of its own expenses not specifically assumed by the Manager or another service provider to the Fund. General expenses of the Fund not readily identifiable as belonging to the Fund are allocated among all Credit Suisse Funds by or under the direction of the Fund’s Board in such manner as the Board determines to be fair and accurate. Each class of each Fund pays its own administration fees and may pay a different share than the other classes of other expenses, except management and custodian fees, if those expenses are actually incurred in a different amount by such class or if a class receives different services.

In addition, as described below under “Organization and Management of Wholly-Owned Subsidiary,” each Subsidiary has entered into separate contracts with Credit Suisse whereby Credit Suisse provides investment advisory and administrative services, respectively, to the Subsidiary. Credit Suisse does not receive separate compensation from the Subsidiary for providing it with investment advisory or administrative services. However, the Fund associated with the applicable Subsidiary pays Credit Suisse based on the Fund’s assets, including the assets invested in the Subsidiary.

The Management Agreement provides that Credit Suisse shall not be liable for any error of judgment or mistake of law or for any loss suffered by the relevant Fund in connection with the matters to which the Agreement relates, except that Credit Suisse shall be liable for a loss resulting from a breach of fiduciary duty by Credit Suisse with respect to the receipt of compensation for services; provided that nothing in the Management Agreement shall be deemed to protect or purport to protect Credit Suisse against any liability to the Fund or to shareholders of the Fund to which Credit Suisse would otherwise be subject by reason of willful misfeasance, bad faith or gross negligence on its part in the performance of its duties or by reason of Credit Suisse’s reckless disregard of its obligations and duties under the Management Agreement.

Each Fund or Credit Suisse may terminate the Management Agreement on 60 days’ written notice without penalty. The Management Agreement will terminate automatically in the event of its assignment (as defined in the 1940 Act).

For its services to each Fund, Credit Suisse is paid (before any waivers or reimbursements) a fee calculated and paid monthly calculated as a percentage of average daily net assets at the following annual rates:

Pursuant to expense limitation agreements, Credit Suisse will limit the operating expenses of Class A, Class C and Class I of certain Funds, as set out in the following table:

These expense limitations exclude certain expenses, including interest charges on fund borrowings, taxes, brokerage commissions, dealer spreads and other transaction charges, expenditures that are capitalized in accordance with generally accepted accounting principles, acquired fund fees and expenses, short sale dividends, and extraordinary expenses (e.g., litigation and indemnification and any other costs and expenses that may be approved by the Board). These expense limitations will be in effect at least through February 28, 2024. The applicable Trust is authorized to reimburse Credit Suisse for management fees previously limited and/or for expenses previously paid by Credit Suisse, provided, however, that any reimbursements must be paid at a date not more than three years after the end of the fiscal year during which such fees were limited or expenses were paid by Credit Suisse and the reimbursements do not cause a class to exceed the applicable expense limitation in the contract at the time the fees were limited or expenses were paid. Each contract may not be terminated before February 28, 2024. Credit Suisse may also voluntarily waive a portion of its fees from time to time and temporarily limit the expenses to be borne by a Fund.

The following table shows the dollar amount of investment management fees earned or accrued by Credit Suisse with respect to each Fund, along with the amount of these fees that were waived and/or reimbursed, if any, for the past three fiscal years.

Sub-Advisory Agreement

The Manager has entered into a Sub-Advisory Agreement (the “Sub-Advisory Agreement”) with Credit Suisse’s United Kingdom affiliate, Credit Suisse UK (the “Sub-Adviser”), with respect to the Strategic Income Fund.

Subject to the supervision of Credit Suisse, Credit Suisse UK, in the exercise of its best judgment, will provide investment advisory assistance and portfolio management advice to the Strategic Income Fund.  Credit Suisse UK bears its own expenses incurred in performing services under the Sub-Advisory Agreement.

Credit Suisse UK is a corporation organized under the laws of England in 1982 and is registered as an investment adviser under the Investment Advisers Act of 1940, as amended. The principal executive office of Credit Suisse UK is One Cabot Square, London E14 4QJ, England. Credit Suisse UK is a diversified asset manager, handling global equity, balanced, fixed income and derivative securities accounts for other investment companies, corporate pension and profit-sharing plans, state pension funds, union funds, endowments and other charitable institutions. Credit Suisse UK has been in the money management business for over 30 years.

Under the Sub-Advisory Agreement with Credit Suisse UK, Credit Suisse (not the Strategic Income Fund) will pay Credit Suisse UK a monthly fee computed at the annual rate of 0.15% of average daily net assets for services rendered with respect to the Strategic Income Fund.

The Sub-Advisory Agreement continues in effect from year to year thereafter if such continuance is specifically approved at least annually by the vote of a majority of the Independent Trustees cast in person at a meeting called for the purpose of voting on such approval, and either by a vote of the Trust’s Board of Trustees or by a majority of the Strategic Income Fund’s outstanding voting securities, as defined in the 1940 Act.  The Sub-Advisory Agreement provides that the Sub-Adviser shall exercise its best judgment in rendering the services described in the Sub-Advisory Agreement and that the Sub-Adviser shall not be liable for any error of judgment or mistake of law or for any loss suffered by the Strategic Income Fund or Credit Suisse in connection with the matters to which the Sub-Advisory Agreement relates, except that the Sub-Adviser shall be liable for a loss resulting from a breach of fiduciary duty by the Sub-Adviser with respect to the receipt of compensation for services; provided that nothing in the Sub-Advisory Agreement shall be deemed to protect or purport to protect the Sub-Adviser against any liability to the Strategic Income Fund or Credit Suisse or to shareholders of the Strategic Income Fund to which the Sub-Adviser would otherwise be subject by reason of willful misfeasance, bad faith or gross negligence on its part in the performance of its duties or by reason of the Sub-Adviser’s reckless disregard of its obligations and duties under this Agreement.  The Sub-Advisory Agreement may be terminated without penalty on 60 days’ written notice by the Strategic Income Fund, 90 days’ written notice by Credit Suisse or the Sub-Adviser and will terminate automatically in the event of its assignment (as defined in the 1940 Act).

For the fiscal years ended October 31, 2020, 2021 and 2022, Credit Suisse paid and/or accrued, $274,723, $392,592 and $412,205 respectively, to Credit Suisse UK for subadvisory fees relating to the Strategic Income Fund.

Administration Agreements

For the services provided by State Street under the State Street Co-Administration Agreement, each Fund pays State Street a fee calculated in total for all the Credit Suisse Funds, subject to an annual minimum fee,

exclusive of out-of-pocket expenses. Each class of shares of a Fund bears its proportionate share of fees payable to State Street in the proportion that its assets bear to the aggregate assets of the Fund at the time of calculation. 

The following table shows the dollar amount of co-administration fees paid by each Fund to State Street for the fiscal years ended October 31, 2020, 2021 and 2022.

Securities Lending Agreement

State Street has been engaged by each Fund to act as the Fund’s securities lending agent. The Fund’s securities lending arrangement provides that the Fund and State Street will share the income earned from securities lending activities. Generally, the Fund will receive 85% and State Street will receive 15% of the income earned on the investment of cash collateral or any other securities lending income in accordance with the provisions of the securities lending agency agreement.

Credit Suisse Commodity Return Strategy Fund earned $300,133 from investment in cash collateral received in connection with securities lending arrangements, and collected $201,230 fees from borrowers (brokers), excluding commissions. The fund retained $74,177 in income, and paid $24,726 to lending agent.

Credit Suisse Floating Rate High Income Fund earned $153,858 from investment in cash collateral received in connection with securities lending arrangements, and collected $119,253 fees from borrowers (brokers), excluding commissions. The fund retained $25,954 in income, and paid $8,651 to lending agent.

Credit Suisse Strategic Income Fund earned $172,443 from investment in cash collateral received in connection with securities lending arrangements, and collected $118,954 fees from borrowers (brokers), excluding commissions. The fund retained $40,123 in income, and paid $13,366 to lending agent.

Credit Suisse Multialternative Strategy Fund earned $198,662 from investment in cash collateral received in connection with securities lending arrangements, and collected $63,896 fees from borrowers (brokers), excluding commissions. The fund retained $101,488 in income, and paid $33,278 to lending agent.

Credit Suisse Managed Futures Strategy Fund did not earn any income or pay any fees.

Organization and Management of Wholly-Owned Subsidiaries

Each of the Commodity Return Strategy Fund, the Managed Futures Strategy Fund and the Multialternative Strategy Fund intends to or may gain exposure to commodity markets by investing up to 25% of its total assets in the shares of its Subsidiary. Each Subsidiary invests primarily in commodity-linked derivative instruments, including swap agreements, commodity options, futures and options on futures.

Each Subsidiary is a company organized under the laws of the Cayman Islands, and its registered office is located at the offices of Walkers SPV Limited, 190 Elgin Avenue, George Town, Grand Cayman, Cayman Islands. Each Subsidiary’s affairs are overseen by a board consisting of two directors, John Popp and Omar Tariq. Mr. Popp is an officer and Trustee of each Trust and an officer of Credit Suisse, and his biography is listed above. Mr. Tariq is an officer of each Trust and of Credit Suisse, and his biography is listed above.

Each Subsidiary has entered into separate contracts with Credit Suisse whereby Credit Suisse provides investment advisory and administrative services, respectively, to the Subsidiary. Credit Suisse does not receive separate compensation from the Subsidiary for providing it with investment advisory or administrative services. However, each Fund pays Credit Suisse based on the Fund’s assets, including the assets invested in its Subsidiary. Each Subsidiary has also entered into separate contracts for the provision of custody, transfer agency, and audit services with the same or with affiliates of the same service providers that provide those services to the Funds.

Each Subsidiary is managed pursuant to compliance policies and procedures that are the same, in all material respects, as the policies and procedures adopted by the applicable Fund. As a result, Credit Suisse, in managing the Subsidiary’s portfolio, is subject to the same investment policies and restrictions that apply to the management of the Fund, and, in particular, to the requirements relating to portfolio leverage, liquidity, brokerage, and the timing and method of the valuation of the Subsidiary’s portfolio investments and shares of the Subsidiary. These policies and restrictions are described elsewhere in detail in this Statement of Additional Information. The Fund’s Chief Compliance Officer oversees implementation of the Subsidiary’s policies and procedures, and makes periodic reports to the Board regarding the Subsidiary’s compliance with its policies and procedures. The Fund and Subsidiary will test for compliance with certain investment restrictions on a consolidated basis.

Please refer to the section in this Statement of Additional Information titled “Additional Information Concerning Taxes” for information about certain tax aspects of each Fund’s investment in its Subsidiary.

Portfolio Managers

Portfolio Managers’ Compensation. The portfolio managers are compensated for their services by Credit Suisse or Credit Suisse UK, as the case may be. Their compensation to the portfolio managers of each Fund includes both a fixed base salary component and bonus component. The discretionary bonus for each portfolio manager is not tied by formula to the performance of any fund or account. The factors taken into account in determining a portfolio manager’s bonus include the Fund’s performance, assets held in the Fund and other accounts managed by the portfolio managers, business growth, team work, management, corporate citizenship, etc.

A portion of the bonus may be paid in phantom shares of Credit Suisse Group AG stock as deferred compensation. Phantom shares are shares representing an unsecured right to receive on a particular date a specified number of registered shares subject to certain terms and conditions. For the portfolio managers of the Floating Rate High Income Fund, a portion of the bonus will receive the notional return of the fund(s) the portfolio manager manages and a portion of the bonus will receive the notional return of a basket of other Credit Suisse funds along the product line of the portfolio manager.

Like all employees of Credit Suisse and Credit Suisse UK, portfolio managers participate in Credit Suisse Group AG’s profit sharing and 401(k) plans.

Potential Conflicts of Interest. It is possible that conflicts of interest may arise in connection with the portfolio managers’ management of a Fund’s investments on the one hand and the investments of other accounts on the other. For example, the portfolio managers may have conflicts of interest in allocating management time, resources and investment opportunities among the Fund and other accounts they advise. In addition due to differences in the investment strategies or restrictions between the Fund and the other accounts, the portfolio managers may take action with respect to another account that differs from the action taken with respect to the Fund. Credit Suisse and Credit Suisse UK have adopted policies and procedures that are designed to minimize the effects of these conflicts.

If Credit Suisse or Credit Suisse UK believes that the purchase or sale of a security is in the best interest of more than one client, it may (but is not obligated to) aggregate the orders to be sold or purchased to seek favorable execution or lower brokerage commissions, to the extent permitted by applicable laws and regulations. Credit Suisse or Credit Suisse UK may aggregate orders if all participating client accounts benefit equally (i.e., all receive an average price of the aggregated orders). In the event Credit Suisse or Credit Suisse UK aggregates an order for participating accounts, the method of allocation will generally be determined prior to the trade execution.

Although no specific method of allocation of transactions (as well as expenses incurred in the transactions) is expected to be used, allocations will be designed to ensure that over time all clients receive fair treatment consistent with each of Credit Suisse’s and Credit Suisse UK’s fiduciary duty to its clients (including its duty to seek to obtain best execution of client trades). The accounts aggregated may include registered and unregistered investment companies managed by Credit Suisse affiliates and accounts in which Credit Suisse’s officers, directors, agents, employees or affiliates own interests. Credit Suisse may not be able to aggregate securities transactions for clients who direct the use of a particular broker-dealer, and the client also may not benefit from any improved execution or lower commissions that may be available for such transactions.

Portfolio Managers’ Ownership of Securities. The following table indicates the dollar range of equity securities in the Funds beneficially owned by the portfolio managers and the value of those shares as of October 31, 2022.

*              Key to Dollar Ranges:

A.    None

B.    $1 - $10,000

C.    $10,001 - $50,000

D.    $50,001 - $100,000

E.    Over $100,000

**            As of January 9, 2023.

Registered Investment Companies, Pooled Investment Vehicles and Other Accounts Managed.

As reported to the Funds, the information in the following table reflects the number of registered investment companies, pooled investment vehicles and other accounts managed by each portfolio manager and the total assets managed within each category as of October 31, 2022.

No management fee is based on performance for any of the accounts listed above.

Code of Ethics

The Funds, Credit Suisse, Credit Suisse UK and CSSU have each adopted a written Code of Ethics (the “Code of Ethics”), which permits personnel covered by the Code of Ethics (“Covered Persons”) to invest in securities, including securities that may be purchased or held by the Funds. The Code of Ethics also contains provisions designed to address the conflicts of interest that could arise from personal trading by advisory personnel, including: (1) all Covered Persons must report their personal securities transactions at the end of each quarter; (2) with certain limited exceptions, all Covered Persons must obtain preclearance before executing any personal securities transactions; (3) Covered Persons may not execute personal trades in a security if there are any pending orders in that security by the Funds; and (4) Covered Persons may not invest in initial public offerings.

The Board reviews the administration of the Code of Ethics at least annually and may impose sanctions for violations of the Code of Ethics.

Custodian and Transfer Agent

State Street acts as the custodian for each Fund and also acts as the custodian for each Fund’s foreign securities pursuant to a Custodian Agreement (the “Custodian Agreement”). Under the Custodian Agreement, State Street (a) maintains a separate account or accounts in the name of the Fund, (b) holds and transfers portfolio securities on account of the Fund, (c) makes receipts and disbursements of money on behalf of the Fund, (d) collects and receives all income and other payments and distributions for the account of the Fund’s portfolio securities held by it and (e) makes periodic reports to the Board of Trustees concerning the Fund’s operations. With the approval of the Board, State Street is authorized to select one or more foreign banking institutions and foreign securities depositories to serve as sub-custodian on behalf of the Fund and to select one or more domestic banks or trust companies to serve as sub-custodian on behalf of the Fund. For this service to the Fund under the Custodian Agreement, State Street receives a fee which is calculated based upon the Fund’s average daily gross assets, exclusive of transaction charges and out-of-pocket expenses, which are also charged to the Fund. The principal business address of State Street is One Lincoln Street, Boston, Massachusetts 02111.

SS&C Global Investor & Distribution Solutions, Inc. (“SS&C”) (previously known as “DST Asset Management Solutions, Inc.”), acts as the shareholder servicing, transfer and dividend disbursing agent of each Fund pursuant to separate Transfer Agency and Service Agreements, under which SS&C (i) issues and redeems shares of the Fund, (ii) addresses and mails all communications by the Fund to record owners of Fund shares, including reports to shareholders, dividend and distribution notices and proxy material for its meetings of shareholders, (iii) maintains shareholder accounts and, if requested, sub-accounts and (iv) makes periodic reports to the Board of Trustees concerning the transfer agent’s operations with respect to the Fund. SS&C’s principal business address is 430 S 7th Street, STE 219916, Kansas City MO 64105-1407.

Proxy Voting Procedures

The Funds have adopted Credit Suisse’s Proxy Voting Procedures as each Fund’s proxy voting policies. The Proxy Voting Procedures appear as Appendix A to this SAI. Each Fund will file Form N-PX with its complete proxy voting record for the 12 months ended June 30 of each year, not later than August 31 of each year. Each Fund’s Form N-PX is available (1) without charge and upon request by calling the Fund toll-free at 877-870-2874 or by accessing our website at www.credit-suisse.com/us/funds and (2) on the SEC’s website at www.sec.gov

Disclosure of Portfolio Holdings

Each Fund’s Board has adopted policies and procedures governing the disclosure of information regarding its portfolio holdings. As a general matter, it is the Funds’ policy that no current or potential investor (or their representative) (collectively, the “Investors”) will be provided information on the Fund’s portfolio holdings on a preferential basis in advance of the provision of that information to other Investors. The Funds’ policies apply to all of the Funds’ service providers that, in the ordinary course of their activities, come into possession of information about the Funds’ portfolio holdings.

The Fund’s policies and procedures provide that information regarding a Fund’s specific security holdings, sector weightings, geographic distribution, issuer allocations and related information, among other things (“Portfolio-Related Information”) will be disclosed to the public only (i) as required by applicable laws, rules or regulations or (ii) pursuant to the Fund’s policies and procedures when the disclosure of such information is considered by the Fund’s officers to be consistent with the interests of Fund shareholders. In the event of a conflict of interest between a Fund, on the one hand, and a service provider or their affiliates on the other hand, relating to the possible disclosure of Portfolio-Related Information, the Fund’s officers will seek to resolve any conflict of interest in favor of the Fund’s interests. In the event that a Fund officer is unable to resolve such conflict, the matter will be referred to the Fund’s Audit Committee for resolution.

The Funds’ policies further provide that in some instances, it may be appropriate for the Funds to selectively disclose Portfolio-Related Information (e.g., for due diligence purposes to a newly hired adviser or sub-adviser, disclosure to a rating agency or disclosure to an affiliate to facilitate management of a seed capital investment in a Fund such affiliate may from time to time hedge all or none of a seed capital investment) prior to public dissemination of such information. Unless the context clearly suggests that the recipient is under a duty of confidentiality, the Funds’ officers will condition the receipt of selectively disclosed Portfolio-Related Information upon the receiving party’s agreement to keep such information confidential and to refrain from trading Fund shares based on the information.

Neither the Funds, Credit Suisse, officers of the Funds nor employees of their service providers will receive any compensation in connection with the disclosure of Portfolio-Related Information. However, the Funds reserve the right to charge a nominal processing fee, payable to the Funds, to non-shareholders requesting Portfolio-Related Information. This fee is designed to offset the Funds’ costs in disseminating data regarding such information. All Portfolio-Related Information will be based on information provided by State Street, as the Funds’ co-administrator/accounting agent.

Disclosure of Portfolio-Related Information may be authorized only by executive officers of the Funds and Credit Suisse. Each Board is responsible for overseeing the implementation of the policies and procedures governing the disclosure of Portfolio-Related Information and reviews the policies annually for their continued appropriateness.

The Funds provide a full list of their holdings as of the end of each calendar month on their website, www.credit-suisse.com/us/funds, approximately 10 business days after the end of each month for each of the Commodity Return Strategy Fund and the Multialternative Strategy Fund, approximately 15 business days after the end of each month for the Floating Rate High Income Fund, and approximately 30 business days after the end of each month for each of the Strategic Income Fund and the Managed Futures Strategy Fund. The list of holdings as of the end of each calendar month remains on the website until the list of holdings for the following calendar month is posted to the website.

The Funds and Credit Suisse have ongoing arrangements to disclose Portfolio-Related Information to service providers to the Funds that require access to this information to perform their duties to the Funds. Set forth below is a list, as of February 1, 2023, of those parties with which Credit Suisse, on behalf of the Funds, has authorized ongoing arrangements that include the release of Portfolio-Related Information, as well as the frequency of release under such arrangements and the length of the time lag, if any, between the date of the information and the date on which the information is disclosed.

In addition, Portfolio-Related Information may be provided as part of the Funds’ ongoing operations to: each Board; PricewaterhouseCoopers LLP, the Funds’ independent registered public accounting firm (“PwC”); Willkie Farr & Gallagher LLP, counsel to the Funds; Faegre Drinker Biddle & Reath LLP, counsel to each Fund’s Independent Trustees; affiliates of Credit Suisse; broker-dealers in connection with the purchase or sale of Fund securities or requests for price quotations or bids on one or more securities; regulatory authorities; stock exchanges and other listing organizations; and parties to litigation, if any. The entities to which the Funds provide Portfolio-Related Information, either by explicit agreement or by virtue of the nature of their duties to the Funds, are required to maintain the confidentiality of the information disclosed.

On an ongoing basis, the Funds may provide Portfolio-Related Information to third parties, including the following: mutual fund evaluation services; broker-dealers, investment advisers and other financial intermediaries for purposes of their performing due diligence on the Funds and not for dissemination of this information to their clients or use of this information to conduct trading for their clients; mutual fund data aggregation services; sponsors of retirement plans that include funds advised by Credit Suisse; and consultants for investors that invest in funds advised by Credit Suisse, provided in each case that the Funds have a legitimate business purpose for providing the information and the third party has agreed to keep the information confidential and to refrain from trading based on the information. The entities that receive this information are listed below, together with the frequency of release and the length of the time lag, if any, between the date of the information and the date on which the information is disclosed:

Each Fund may also disclose to an issuer the number of shares of the issuer (or percentage of outstanding shares) held by the Fund.

The ability of the Funds and the Manager to effectively monitor compliance by third parties with their confidentiality agreements is limited, and there can be no assurance that the Funds’ policies on disclosure of Portfolio-Related Information will protect the Funds from the potential misuse of that information by individuals or firms in possession of that information.

Distribution and Shareholder Servicing

Distributor. Pursuant to a Distribution Agreement, CSSU serves as the distributor of each Fund’s shares and offers the Funds’ shares on a continuous basis. CSSU’s principal business address is Eleven Madison Avenue, New York, New York 10010.

Class A and Class C Shares. Each Fund has adopted Plans of Distribution for its Class A shares and Class C shares (each, a “Class A 12b-1 Plan” and “Class C 12b-1 Plan,” respectively, and collectively, the “12b-1 Plans”) except for the Multialternative Strategy Fund which only offers Class A shares, to permit the Fund directly or indirectly to pay expenses associated with the distribution of shares and the servicing of accounts, including paying compensation to CSSU.

Although actual distribution expenses may be more or less, pursuant to the provisions of the 12b-1 Plans and the Distribution Agreement, a Fund pays a distribution services fee each month to CSSU, with respect to Class A and Class C shares of the Fund, at an annual rate of up to 0.25% and 1%, respectively.

For the fiscal year ended October 31, 2022, each Fund paid the amounts set out in the table below to CSSU under its 12b-1 Plans:

Distribution and service fees on Class A and C shares are used to pay CSSU to promote the sale of shares and the servicing of accounts of the Fund. CSSU also receives sales charges as compensation for its expenses in selling shares, including the payment of compensation to financial representatives.

The expenses incurred by CSSU under the 12b-1 Plans for Class A and C shares include the preparation, printing and distribution of prospectuses, sales brochures and other promotional materials sent to prospective shareholders. They also include purchasing radio, television, newspaper and other advertising and compensating CSSU’s employees or employees of the distributor’s affiliates for their distribution assistance.

During the fiscal year ended October 31, 2022, CSSU spent the fees paid under each Fund’s Class A 12b-1 Plan as follows:

During the fiscal year ended October 31, 2022, CSSU spent the fees paid under each Fund’s Class C 12b-1 Plan as follows: