SUMMARY OF THE FUND

Investment Objective

Fees and Expenses of the Fund:

Expense Example

You would pay the following expenses if you did not redeem your shares of the Fund:

Portfolio Turnover

Principal Investment Strategies

Principal Risks

Performance

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. In some instances, the “Return After Taxes on Distributions and Sale of Fund Shares” may be greater than “Return Before Taxes” and “Return After Taxes on Distributions” because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts, including “Roth” IRAs and SEP IRAs (collectively, “IRAs”). After-tax returns are shown only for Class A shares. After-tax returns for other classes will vary due to the differences in expenses.

Management

The Adviser. Gabelli Funds, LLC

The Portfolio Managers. Mr. Ralph Rocco, Mr. Willis Brucker, Mr. Paolo Vicinelli, and Mr. Joseph Gabelli each has served as a portfolio manager of the Fund since November 24, 2021.

Purchase and Sale of Fund Shares

The minimum initial investment for Class AAA, Class A, and Class C shares is $1,000 ($250 for IRAs or Coverdell Education Savings Plans). There is no minimum initial investment for Class AAA, Class A, and Class C shares in an automatic monthly investment plan.

Class I shares are available to investors with a minimum investment of $500,000 when purchasing shares directly through G.distributors, LLC, the Fund’s distributor (“G.distributors” or the “Distributor”), or investors purchasing Class I shares through brokers or financial intermediaries that have entered into selling agreements with the Distributor specifically with respect to Class I shares, and which have different minimum investment amounts. If you transact in Class I shares through a broker or financial intermediary, you may be required to pay a commission and/or other forms of compensation to the broker or financial intermediary. The Distributor reserves the right to waive or change minimum investment amounts. There is no minimum for subsequent investments.

You can purchase or redeem shares of the Fund on any day the New York Stock Exchange (“NYSE”) is open for trading (each, a “Business Day”). You may purchase or redeem Fund shares by written request via mail (The Gabelli Funds, P.O. Box 219204, Kansas City, MO 64121-9204), personal delivery or overnight delivery (The Gabelli Funds, c/o SS&C Global Investor & Distribution Solutions, Inc., 430 W 7th Street STE 219204, Kansas City, MO 64105-1407), Internet, bank wire, or Automated Clearing House (“ACH”) system. You may also purchase or redeem Fund shares by telephone at 800-GABELLI (800-422-3554) if you have an existing account with banking instructions on file.

Fund shares can also be purchased or sold through registered broker-dealers or other financial intermediaries that have entered into appropriate selling agreements with the Distributor. The broker-dealer or other financial intermediary will transmit these transaction orders to the Fund on your behalf and send you confirmation of your transactions and periodic account statements showing your investments in the Fund.

Tax Information

The Fund expects that distributions will generally be taxable as ordinary income or long term capital gains, unless you are investing through a tax deferred arrangement, such as a 401(k) plan or an IRA.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase shares of the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund and its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.

INVESTMENT OBJECTIVE, INVESTMENT STRATEGIES, AND RELATED RISKS

The Fund’s investment objective is to seek to maximize total return, consisting of capital appreciation and current income. This investment objective is fundamental and may not be changed without shareholder approval. The Fund’s investment strategy is not fundamental and may be changed by a vote of a majority of the Board of Directors (the “Board”) at any time without a vote of shareholders.

The Fund follows a value oriented strategy. The Fund invests in, and may shift frequently among, a wide range of asset classes and market sectors. These include foreign and domestic equity and debt securities, money market instruments, and derivatives. The Fund is classified as a diversified portfolio. As a result, the Adviser has considerable flexibility in selecting the types of investments and market sectors for investment of the Fund’s assets and is not required to maintain any minimum portion of the Fund’s assets in any particular asset class. The Fund may use either long or short positions in pursuit of its investment objective. The Fund’s investment performance will depend in large part on the asset allocation selected by the portfolio managers.

The Fund may invest in a wide range of securities. Equity securities in which the Fund may invest include common and preferred stock (including convertible preferred stock), warrants, and depository receipts. There is no restriction on the market capitalization of the Fund’s equity securities. Debt securities in which the Fund may invest include U.S. corporate debt, U.S. government and agency debt, and foreign sovereign and other debt securities (including debt securities from emerging market issuers). The Fund may invest up to 65% of its assets in the equity and debt securities of foreign issuers, including those in emerging markets. The Fund may also invest in debt securities convertible into shares of common stock. The Fund’s debt securities may have fixed, floating, or variable rates of interest.

The Fund may invest without limit in high yield debt securities (commonly referred to as “junk bonds”) with no minimum rating assigned by Moody’s or S&P. However, the Fund intends to limit such investments to 35% of its assets in debt securities rated at the time of purchase “Baa” or lower by Moody’s or “BBB” or lower by S&P or, if unrated, judged by the Adviser to be of comparable quality. There is no restriction on the maturity of the Fund’s portfolio or on any individual debt security in the Fund’s portfolio. The Adviser may adjust the average maturity according to actual or anticipated changes in the market.

The Fund may invest in high quality domestic and foreign money market instruments, and may enter into repurchase agreements. In addition, when the Adviser determines that a temporary defensive position is advisable or to meet anticipated redemption requests, the Fund may invest without limit in short term debt obligations, such as commercial paper, bank obligations, and U.S. Treasury bills.

The Fund may make short sales, which are transactions in which the Fund sells a security it does not own, with the expectation that the security’s value will decline. To complete a short sale, the Fund must borrow the security to make delivery, and then replace the security by purchasing it. The total market value of all of the Fund’s short sales may not exceed 50% of the value of the Fund’s net assets. In addition, the Fund’s short sales of the securities of any single issuer listed on a national securities exchange may not exceed 5% of the value of the Fund’s net assets, and the Fund may not sell short more than 5% of the outstanding securities of a single class of securities of an issuer. The Fund may enter into short sales of securities the Fund owns, but such sales cannot exceed 15% of the value of the Fund’s net assets. The Fund’s compliance with these limitations is calculated at the time a transaction is effected.

The Fund intends to invest in derivatives, which are financial instruments whose value is based on another security, an index of securities or market changes, or exchange rate movements. The Fund may use derivatives to hedge various market risks. Derivative strategies the Fund may use include writing covered call or put options or purchasing put and call options on securities, foreign currencies, or stock indices. The Fund may also purchase or sell stock index futures contracts or interest rate futures contracts and may enter into interest rate or forward currency transactions. In addition, the Fund may purchase futures and options on futures and may purchase options on securities or securities indices for speculative purposes in order to increase the Fund’s income or gain. The Fund may enter into futures contracts and options on futures for speculative purposes if, immediately thereafter, the sum of the amount of its initial margin on futures contracts and premiums on options on futures would not exceed 5% of the liquidation value of the Fund’s portfolio, provided that in the case of an option that is in-the-money at the time of purchase, the in-the-money amount may be excluded in calculating this 5% limitation. In addition to the preceding limitation, the value of all uncovered put and call options held by the Fund cannot exceed 10% of the Fund’s net assets. The Fund may not write covered call and put option contracts in excess of 20% of its net assets. The Fund’s compliance with these limitations is only calculated at the time any new position is added, with the result that the limitations may be exceeded if derivative positions held by the Fund appreciate.

While the Fund seeks to maximize total return, there is no guarantee that shares of the Fund will not lose value. This means that you can lose money on your investment in the Fund. The Fund may not be able to achieve its objective if the portfolio managers’ expectations regarding particular securities or markets are not met. In particular, as long as the Fund is positioned to seek profits from a major U.S. equity market decline, the value of the Fund’s shares may be adversely affected during periods in which there are stable or rising market conditions.

The Fund may also use the following investment technique:

The Fund may also engage in other investment practices in order to achieve its investment objectives. These are discussed in the Statement of Additional Information (“SAI”) which may be obtained by calling 800-GABELLI (800-422-3554), your financial intermediary, or free of charge through the Fund’s website at www.gabelli.com.

Investing in the Fund involves the following risks:

Portfolio Holdings. A description of the Fund’s policies and procedures with respect to the disclosure of the Fund’s portfolio securities is available in the Fund’s SAI, which may be obtained by calling 800-Gabelli (800-422-3554), your financial intermediary, or free of charge through the Fund’s website at www.gabelli.com.

MANAGEMENT OF THE FUND

The Adviser. Gabelli Funds, LLC, with its principal offices located at One Corporate Center, Rye, New York 10580-1422, is a New York limited liability company that serves as investment adviser to the Fund. The Adviser makes investment decisions for the Fund and continuously reviews and administers the Fund’s investment program and manages the Fund’s operations under the general supervision of the Fund’s Board. The Adviser also manages several other open-end and closed-end investment companies in the Gabelli family of funds (“Gabelli Fund Complex” or “Fund Complex”). The Adviser is a wholly owned subsidiary of GAMCO Investors, Inc. (“GAMI”), a publicly held company listed on the OTCQX.

As compensation for its services and the related expenses borne by the Adviser, for the fiscal year ended April 30, 2023, the Fund paid the Adviser a fee computed daily and payable monthly equal to 1.00% of the value of the Fund’s average daily net assets. For the fiscal year ended April 30, 2023, the Adviser agreed to waive the Fund’s management fee of 1.00%. The Adviser has contractually agreed to waive the Fund’s management fee of 1.00% for the period ending on the later of the Fund reaching $100 million in net assets or November 24, 2024 and this arrangement may be terminated only by the Board before such time.

The Fund’s semiannual report to shareholders for the period ending October 31, 2023, will contain a discussion of the basis of the Board’s determination to continue the investment advisory arrangement.

The Portfolio Managers. The portfolio managers of the Fund are Mr. Ralph Rocco, Mr. Willis Brucker, Mr. Paolo Vicinelli, and Mr. Joseph Gabelli, each of whom is jointly responsible for the day to day management of the Fund.

Mr. Rocco is a Partner and Senior Portfolio Manager at Gabelli and leads the merger portfolio team. Mr. Rocco has extensive merger investing experience that spans three decades and specializes in all aspects of complex global merger transactions. He holds a BA in Economics from Rutgers University.

Mr. Brucker has 17 years experience analyzing and investing in global merger transactions and special situations. He joined GAMCO Investors, Inc. in 2004 as a research analyst after graduating from the Boston College Carroll School of Management with a BS in Finance and Corporate Reporting and Analysis.

Mr. Vicinelli is a Senior Portfolio Manager and analyst of various portfolios managed by the Gabelli organization. Mr. Vicinelli has over 27 years of investment experience focusing on global special situations and complex merger transactions. Mr. Vicinelli is co-author of “Deals…Deals...and More Deals,” a detailed narrative dedicated to M&A first published by Gabelli University Press in 1999. Mr Vicinelli graduated from Colgate University in 1991 with a BA in History, and received his MBA in Finance from Columbia Business School in 1999.

Mr. Joseph Gabelli rejoined GAMCO Investors, Inc. on May 1, 2018, after serving as a data strategy consultant for Alt/S, an early stage media and marketing analytics firm, beginning in July 2017. From 2008 until June 2017, Mr. Joseph Gabelli served as an equity research analyst covering the global food and beverage industry for GAMCO Investors, Inc. and its affiliate, Associated Capital Group. He began his investment career at Integrity Capital Management, a Boston based equity hedge fund, where he focused on researching small and micro-cap companies in the technology, healthcare and consumer discretionary sectors. Mr. Gabelli holds a BA from Boston College, and an MBA from Columbia Business School, where he graduated with Dean’s Honors and Distinction.

The SAI provides additional information about the portfolio managers’ compensation, other accounts managed by them, and their ownership of securities in the Fund.

INDEX DESCRIPTION

The S&P 500 Index is a widely recognized, unmanaged index of common stock prices. The index figures do not reflect any deductions for fees, expenses, or taxes. You cannot invest directly in the S&P 500 Index.

CLASSES OF SHARES

Four classes of the Fund’s shares are offered in this prospectus — Class AAA shares, Class A shares, Class C shares, and Class I shares. The Fund is not designed for market timers; see the section entitled “Redemption of Shares.” Each class of shares has different costs associated with buying, selling, and holding Fund shares. Your broker or other financial professional can assist you in selecting which class of shares best meets your needs based on such factors as the size of your investments and the length of time you intend to hold your shares.

The minimum initial investment for Class AAA, Class A, and Class C shares is $1,000.

The Fund’s Class AAA shares are offered only to (1) clients of broker-dealers or other financial intermediaries (i) that charge such clients an ongoing fee for advisory, investment, consulting, or similar service or (ii) where the Distributor has entered into an agreement permitting the financial intermediary to offer Class AAA shares through its mutual fund supermarket network or platform, and (2) customers of the Distributor.

The Fund’s Class A shares and Class C shares each carry their own sales charges. There are also ongoing charges that all investors pay as long as they own their shares. Class A shares have an initial sales charge which is deducted directly from the money you invest. Class C shares have a contingent deferred sales charge (“CDSC”) that you may have to pay if you sell your shares within 12 months of buying them. Class I shares have no sales charges.

Class I shares are available to investors with a minimum investment of $500,000 and purchasing the shares directly through the Distributor or brokers or financial intermediaries that have entered into selling agreements with the Distributor specifically with respect to Class I shares. Such brokers or financial intermediaries may have different requirements as to the investment minimum. If you transact in Class I shares through a broker or financial intermediary, you may be required to pay a commission and/or other forms of compensation to the broker or financial intermediary. The minimum investment requirement is waived for employee benefit plans with assets of at least $50 million.

The Distributor or its affiliates may, in their discretion, accept investments from purchasers that do not meet the qualification requirements.

There is no minimum for subsequent investments.

The table that follows summarizes the differences among the classes of shares.

In selecting a class of shares in which to invest, you should consider:

The following sections and Appendix A to this prospectus include important information about sales charges and sales charge reductions and waivers and describe information or records you may need to provide to the Fund or your broker in order to be eligible for sales charge reductions and waivers. Intermediaries may have different policies and procedures regarding the availability of sales charge reductions and waivers, please refer to Appendix A to this prospectus, which describes all such intermediaries. Information about sales charges and sales charge reductions and waivers to the various classes of the Fund’s shares is also available free of charge and in a clear and prominent format on our website at www.gabelli.com. You should consider the information below as a guide only, as the decision on which share class is best for you depends on your individual needs and circumstances.

Sales Charge — Class A Shares. Unless you are eligible for a sales charge reduction or a waiver as set forth in Appendix A to this prospectus, the sales charge is imposed on Class A shares at the time of purchase in accordance with the following schedule. It is the purchaser’s responsibility to notify the Fund, the Distributor, or the purchaser’s financial intermediary at the time of purchase of any relationship or other facts qualifying the purchaser for sales charge reductions or waivers.

There is no sales charge for investments in Class A shares of $1 million or more, except that you will pay a deferred sales charge of 1% if you purchase $1 million or more of Class A shares without a sales load and you redeem all or part of your shares within eighteen months after purchase. No sales charge is imposed on reinvestment of dividends and distributions if you select that option in advance of the distribution. The Distributor may pay a dealer concession of up to 1% on investments made with no initial sales charge. The fee may be waived if no dealer concession is paid.

Breakpoints or Volume Discounts

The Fund offers you the benefit of discounts on the sales charges that apply to purchases of Class A shares in certain circumstances. These discounts, which are also known as breakpoints, can reduce or, in some instances, eliminate the initial sales charges that would otherwise apply to your Class A shares investment. Mutual funds are not required to offer breakpoints and different mutual fund groups may offer different types of breakpoints.

Breakpoints or volume discounts allow larger investments in Class A shares to be charged lower sales charges. If you invest $50,000 or more in Class A shares of the Fund, then you are eligible for a reduced sales charge. Initial sales charges are eliminated completely for purchases of $1,000,000 or more, although a 1% CDSC may apply if shares are redeemed up to and including the last day of the eighteenth month after purchase.

Sales Charge Reductions and Waivers — Class A Shares

Reduced sales charges are available to (1) investors who are eligible to combine their purchases of Class A shares to receive volume discounts and (2) investors who sign a Letter of Intent (“Letter”) agreeing to make purchases over time. Certain types of investors, as set forth below, are eligible for sales charge waivers.

Class A shares may be available for purchase by clients of certain financial intermediaries without the application of a front-end sales load, as described in Appendix A to the prospectus.

You may qualify for a reduced sales charge, or a waiver of sales charges, on purchases of Class A shares. The requirements are described in the following paragraphs. To receive a reduction that you qualify for, you may have to provide additional information to your broker or other service agent. For more information about sales charge discounts and waivers, consult with your broker or other service provider.

Volume Discounts/Rights of Accumulation. In order to determine whether you qualify for a volume discount under the foregoing sales charge schedule, you may combine your new investment and your existing investments in Class A shares with those of your immediate family (spouse and children under age 21), your and their IRAs and other employee benefit plans and trusts and other fiduciary accounts for your and their benefit. You may also include Class A shares of any other open-end investment company managed by the Adviser or its affiliates that are held in any of the foregoing accounts. The Fund uses the current net asset value per share (“NAV”) of these holdings when combining them with your new and existing investments for purposes of determining whether you qualify for a volume discount.

Letter of Intent. If you initially invest at least $1,000 in Class A shares of the Fund and submit a Letter to your financial intermediary or the Distributor, you may make purchases of Class A shares of the Fund during a thirteen month period at the reduced sales charge rates applicable to the aggregate amount of the intended purchases stated in the Letter. The Letter may apply to purchases made up to ninety days before the date of the Letter. If you fail to invest the total amount stated in the Letter, the Fund will retroactively collect the sales charge otherwise applicable by redeeming shares in your account at their then current NAV. For more information on the Letter, call your broker.

Required Shareholder Information and Records. In order for you to take advantage of sales charge reductions, you or your broker must notify the Fund that you qualify for a reduction. Without notification, the Fund is unable to ensure that the reduction is applied to your account. You may have to provide information

or records to your broker or the Fund to verify eligibility for breakpoint privileges or other sales charge waivers. This may include information or records, including account statements, regarding shares of the Fund or shares of any other open-end investment company managed by the Adviser or its affiliates held in:

You should therefore keep copies of these types of records.

Investors Eligible for Sales Charge Waivers. Class A shares of the Fund may be offered without a sales charge to: (1) employees of the Distributor and its affiliates, The Bank of New York Mellon Corporation, SS&C Global Investor & Distribution Solutions, Inc. (“SS&C GIDS” or the “Transfer Agent”), State Street Bank and Trust Company (“State Street”), BNY Mellon Investment Servicing (US) Inc. and Soliciting Broker-Dealers, employee benefit plans for those employees and their spouses and minor children of such employees when orders on their behalf are placed by such employees (the minimum initial investment for such purchases is $500); (2) the Adviser, its affiliates and their officers, directors, trustees, general partners, employees and directors of other investment companies managed by the Adviser, employee benefit plans for such persons and their immediate family when orders on their behalf are placed by such persons (with no required minimum initial investment) — the term “immediate family” for this purpose refers to a person’s spouse, children and grandchildren (adopted or natural), parents, grandparents, siblings, a spouse’s siblings, a sibling’s spouse and a sibling’s children; (3) any other investment company in connection with the combination of such company with the Fund by merger, acquisition of assets, or otherwise; (4) shareholders who have redeemed shares in the Fund and who wish to reinvest in the Fund, provided the reinvestment is made within ninety days of the redemption; (5) employee benefit plans; (6) any unit investment trusts registered under the Investment Company Act of 1940, as amended, which have shares of the Fund as a principal investment; (7) investment advisory clients of GAMCO Asset Management, Inc. and their immediate families; (8) financial institutions purchasing Class A shares of the Fund for clients participating in a fee based asset allocation program or wrap fee program; and (9) investment advisers or financial planners who place trades for their own accounts or the accounts of their clients and who charge a management, consulting, or other fee for their services; and clients of such investment advisers or financial planners who place trades for their own accounts if the accounts are linked to the master account of such investment adviser or financial planner on the books and records of a broker or financial intermediary.

Additional categories of sales charge reductions and waivers are also set out in Appendix A to this prospectus. Investors who qualify under any of the categories described above or those set out in Appendix A to this prospectus should contact their financial intermediary. Some of these investors may also qualify to invest in Class I shares.

Contingent Deferred Sales Charge

We calculate the CDSC from the month you buy your shares. We always redeem the shares with the lowest CDSC first. Shares acquired by reinvestment of distributions can be sold without a CDSC. You will not pay a CDSC to the extent that the value of the redeemed shares represents reinvestment of distributions or capital appreciation of shares redeemed. When you redeem shares, we will assume that you are first

redeeming shares representing reinvestment of distributions, then any appreciation on shares redeemed, and then any remaining shares held by you for the longest period of time. We will calculate the holding period of shares acquired through an exchange of shares of another fund from the date you acquired the original shares of the other fund. The time you hold shares in the Gabelli money market fund, however, will not count for purposes of calculating the applicable CDSC.

We will waive the CDSC payable upon redemptions of shares for:

The CDSC will be waived if you invest and purchase your shares through intermediaries identified in Appendix A to this prospectus.

Class C Shares

The CDSC is deducted directly from your investment when you sell your shares. It is equal to 1.00% of the original purchase price or the current value of the shares, whichever is lower. You will pay a CDSC when you redeem Class C shares up to and including the last day of the twelfth month from when they were bought. We calculate the CDSC from the month you buy your shares. We always redeem the shares with the lowest CDSC first.

The Distributor pays sales commissions of up to 1.00% of the purchase price of Class C shares of the Fund at the time of sale to brokers and financial intermediaries that initiate and are responsible for purchases of such Class C shares of the Fund.

Class C shares are converted to Class A shares after approximately ten years (but possibly earlier), meaning that you keep paying the higher distribution and service fees associated with Class C shares as long as you hold them.

The maximum amount of Class C shares that are eligible for purchase by an investor is limited to $1 million.

Class I Shares

Class I shares have no sales charges and no distribution or service fees, but are only available to investors with a minimum investment of $500,000 and purchasing shares directly through G.distributors, or brokers or financial intermediaries that have entered into selling agreements with the Distributor specifically with respect to Class I shares. The minimum is waived for employee benefit plans with assets of at least $50 million. The Distributor or its affiliates may, in their discretion, accept investments in Class I shares from purchasers that do not meet the qualification requirements.

Rule 12b-1 Plans. The Fund has adopted service and distribution plans under Rule 12b-1 for Class AAA, Class A, and Class C shares of the Fund (“Plans” or each, a “Plan”). Under these Plans, the Fund may use its assets to finance activities relating to the sale of its Class AAA, Class A, and Class C shares and the provision of certain shareholder services. To the extent any activity is one that the Fund may finance without a distribution plan, the Fund may also make payments to compensate such activities outside a Plan and not be subject to its limitations.

The Class AAA and Class A Plans authorize payments by the Fund on an annual basis of 0.25% of its average daily net assets attributable to Class AAA and Class A shares to finance distribution of its Class AAA and Class A shares or pay shareholder service fees. The Class C Plan authorizes payments at an annual rate of 0.75% of its average daily net assets attributable to Class C shares to finance distribution of its Class C shares and 0.25% of its average daily net assets attributable to Class C shares to pay shareholder service fees.

Because the Rule 12b-1 fees are higher for Class C shares than for Class AAA or Class A shares, Class C shares will have higher annual expenses. Because Rule 12b-1 fees are paid out of the Fund’s assets on an on-going basis, over time these fees will increase the cost of your investment and may cost you more than paying other types of sales charges.

PURCHASE OF SHARES

You can purchase the Fund’s shares on any Business Day.

You can obtain a subscription order form by calling 800-GABELLI (800-422-3554). Checks made payable to a third party and endorsed by the shareholder are not acceptable. For additional investments, send a check to the above address with a note stating your exact name and account number, the name of the fund(s), and class of shares you wish to purchase.

State Street Bank and Trust Company

225 Franklin Street, Boston, MA 02110

ABA #011-0000-28 REF DDA #99046187

Re: Comstock Capital Value Fund

Account # __________________________

Account of [Registered Owners]

If you are making an initial purchase, you should also complete and mail a subscription order form to the address shown under “By Mail”. Note that banks may charge fees for wiring funds, although the Transfer Agent will not charge you for receiving wire transfers.

You may purchase shares directly through registered broker-dealers or other financial intermediaries that have entered into appropriate selling agreements with the Distributor.

Your broker-dealer or financial intermediary can obtain a subscription order form by calling 800-GABELLI (800-422-3554). The broker-dealer or other financial intermediary will transmit a purchase order and payment to SS&C GIDS on your behalf. Broker-dealers or other financial intermediaries may send you confirmations of your transactions and periodic account statements showing your investments in the Fund.

Share Price. The Fund sells its shares based on the NAV next determined after the time as of which the Fund receives your completed subscription order form but does not issue the shares to you until it receives full payment, subject to a front-end sales charge in the case of Class A shares. See “Pricing of Fund Shares” herein for a description of the calculation of the NAV.

Minimum Investments. The minimum initial investment for Class AAA, Class A, and Class C shares is $1,000 ($250 for IRAs or Coverdell Education Savings Plans). The minimum initial investment for Class I shares is $500,000 for investors purchasing Class I shares directly through the Distributor. Investors who wish to purchase Class I shares through brokers or financial intermediaries that have entered into selling agreements with the Distributor specifically with respect to Class I shares should consult their broker or financial intermediary with respect to any minimum investment amount required for their account. The Distributor or its affiliates may, in their discretion, waive the minimum investment requirement under certain circumstances. There is no minimum for subsequent investments. Broker-dealers and financial intermediaries may have different minimum investment requirements.

General. SS&C GIDS will not issue share certificates unless you request them. The Fund reserves the right to (i) reject any purchase order if, in the opinion of the Fund’s management, it is in the Fund’s best interest to do so, (ii) suspend the offering of shares for any period of time, and (iii) waive the Fund’s minimum purchase requirements. Except for differences attributable to these arrangements, the shares of all classes are substantially the same.

Customer Identification Program. Federal law requires the Fund to obtain, verify, and record identifying information, which may include the name, residential, or business address, date of birth (for an individual), social security or taxpayer identification number, or other identifying information, for each investor who opens or reopens an account with the Fund. Applications without the required information may be rejected or placed on hold until the Fund verifies the account holder’s identity.

Third Party Arrangements. In addition to, or in lieu of, amounts received by broker-dealers or other financial intermediaries as reallowances of a portion of sales commissions, the Adviser and its affiliates may utilize a portion of their assets, which may include revenues received under the Plan, to pay all or a portion of the charges of various programs that make shares of the Fund available to their customers. These payments, sometimes referred to as “revenue sharing,” do not change the price paid by investors to purchase the Fund’s shares or the amount the Fund receives as proceeds from such sales. Revenue sharing payments may be made to broker-dealers and other financial intermediaries that provide services

to the Fund or to shareholders in the Fund, including (without limitation) the following programs: shareholder servicing to Fund shareholders, transaction processing, subaccounting services, marketing support, access to sales meetings, sales representatives, and management representatives of the broker-dealer, or other financial intermediaries. Revenue sharing payments may also be made to brokers, and other financial intermediaries for inclusion of the Fund on a sales list, including a preferred or select sales list, and in other sales programs. These payments may take a variety of forms, including (without limitation) compensation for sales, “trail” fees for shareholder servicing and maintenance of shareholder accounts, and finders’ fees that vary depending on the share class and the dollar amount of shares sold. Revenue sharing payments may be structured: (i) as a percentage of sales; (ii) as a percentage of net assets; and/or (iii) as a fixed dollar amount.

The Adviser may also provide non-cash compensation to broker-dealers or other financial intermediaries in accordance with applicable rules of the Financial Industry Regulatory Authority, Inc. (“FINRA”), such as the reimbursement of travel, lodging, and meal expenses incurred in connection with attendance at educational and due diligence meetings or seminars by qualified registered representatives of those firms and, in certain cases, their families; meeting fees; certain entertainment; advertising or other promotional expenses; or other permitted expenses as determined in accordance with applicable FINRA rules. In certain cases these other payments could be significant.

Subject to tax limitations and approval by the Board, the Fund may also make payments to third parties out of its own assets (other than Rule 12b-1 payments) for a portion of the charges for those programs that generally represent savings of expenses experienced by the Fund resulting from shareholders investing in the Fund through such programs rather than investing directly in the Fund.

The Adviser negotiates the level of payments described above to any particular broker-dealer or other financial intermediary. Currently, such payments (expressed as a percentage of net assets) range from 0.10% to 0.40% per year of the average daily net assets of the Fund attributable to the particular firm depending on the nature and level of services and other factors. In the case of Class I shares, the Fund may not make any payments for distribution related shares.

In addition, in certain cases, broker-dealers or other financial intermediaries, may have agreements pursuant to which shares of the Fund owned by their clients are held of record on the books of the Fund in omnibus accounts maintained by each intermediary, and the intermediaries provide those Fund shareholders with sub-administration and sub-transfer agency services. Pursuant to the Fund’s transfer agency agreement, the Fund pays the transfer agent a fee for each shareholder account. As a result, the use of one omnibus account for multiple beneficial shareholders can create a cost savings to the Fund. The Board may, from time to time, authorize the Fund to pay a portion of the fees charged by these intermediaries if (i) a cost savings to the Fund can be demonstrated and (ii) the omnibus account of the intermediary has net assets in the Fund in excess of $10 million. In these cases, the Board may authorize the Fund to pay a portion of the fees to the intermediary in an amount no greater than the lower of the transfer agency cost savings relating to the particular omnibus account or 0.10% of the average daily net assets of that omnibus account. These payments compensate these intermediaries for the provision of sub-administration and sub-transfer agency services associated with their clients whose shares are held of record in this manner.

Additional Purchase Information

Retirement Plans/Education Savings Plans. The Fund makes available IRAs and Coverdell Education Savings Plans for investment in Fund shares. Applications may be obtained from the Distributor by calling 800-GABELLI (800-422-3554). Self-employed investors may purchase shares of the Fund through tax-deductible contributions to existing retirement plans for self-employed persons, known as “Keogh” or “H.R-10” plans. The Fund does not currently act as a sponsor to such plans. Fund shares may also be a suitable investment for other types of qualified pension or profit sharing plans which are employer sponsored, including deferred compensation or salary reduction plans known as “401(k) Plans.” For Class AAA, A, and C shares, the minimum initial investment in all such retirement and education savings plans is $250. There is no minimum subsequent investment for retirement or education savings plans.

Automatic Investment Plan. The Fund offers an automatic monthly investment plan. For Class AAA, Class A, and Class C shares there is no minimum initial investment for accounts establishing an automatic investment plan. Call your financial intermediary or the Distributor at 800-GABELLI (800-422-3554) for more details about the plan.

Telephone or Internet Investment Plan. You may purchase additional shares of the Fund by telephone and/or over the Internet if your bank is a member of the Automated Clearing House system. You must also have a completed and approved Account Options Form on file with the Transfer Agent.

There is a minimum of $100 for each telephone or Internet investment. However, you may split the $100 minimum between two funds. To initiate an ACH purchase, please call your financial intermediary or the Distributor at 800-GABELLI (800-422-3554) or 800-872-5365 or visit our website at www.gabelli.com.

Voluntary Conversion. Shareholders may be able to convert shares to Class I shares of the Fund, which have a lower expense ratio, provided certain conditions are met. For Class A and Class C, this conversion feature is intended for shares held through a financial intermediary offering a fee based or wrap fee program that has an agreement with the Adviser or the Distributor specific for this purpose. Shareholders who currently hold Class AAA shares and are eligible to purchase Class I shares may convert existing Class AAA shares of the same Fund through their financial intermediary if their financial intermediary has a specific agreement with the Distributor. In such instances, Class AAA, Class A, or Class C shares may be converted under certain circumstances. Generally, Class C shares are not eligible for conversion until the applicable CDSC period has expired. Under current interpretation of applicable federal income tax law by the Internal Revenue Service, this voluntary conversion to Class I shares generally should not be treated as a taxable event. The Distributor has entered into an agreement with Merrill Lynch, Pierce, Fenner & Smith Inc. (“Merrill Lynch”), pursuant to which Class C shares held by a Merrill Lunch customer will be converted into Class A shares of the same fund in the month of the 8-year anniversary of the purchase date. Please contact your tax advisor and/or financial intermediary for additional information. Not all share classes are available through all financial intermediaries.

If shares of the Fund are converted to a different share class of the Fund, the transaction will be based on the respective NAV of each class as of the trade date of the conversion. Consequently, a shareholder may receive fewer shares or more shares than originally owned, depending on that day’s NAVs. Please contact your tax adviser regarding the tax consequences of any conversion.

Conversion of Class C shares to Class A shares. Investors whose accounts are held at the Fund’s transfer agent are eligible to hold Class C shares of the Fund only until the month of the 8-year anniversary of the purchase date. In the month of the 8-year anniversary of the purchase date, the Fund will convert such an investor’s Class C shares into Class A shares. This conversion will not be subject to any sales charge, fee, or other charge, and will be based on the relative net asset values of the two classes in question. The Internal Revenue Service currently takes the position that such conversions are not taxable. Should its position change, the conversion feature may be suspended. If this were to happen, you would have the option of instructing the Fund to continue to convert your Class C shares of the Fund to Class A shares of the Fund at the anniversary date described above. This conversion would also be based on the relative net asset values of the two classes in question, without the imposition of a sales charge or fee, but you might face certain tax consequences as a result. Shareholders should consult with their tax adviser regarding the state and local tax consequences of such conversions.

Investors holding Class C shares of the Fund through a financial intermediary in “street name” may be subject to different eligibility requirements regarding the holding of Class C shares of the Fund. In this regard, a financial intermediary may sponsor and/or control accounts, programs, or platforms that impose a different conversion schedule or different eligibility requirements for the conversion of Class C shares into Class A shares. In these cases, Class C shares of the Fund may be converted to Class A shares under the policies of the financial intermediary and the conversion may be structured as an exchange of Class C shares for Class A shares of the Fund. Financial intermediaries will be responsible for making such exchanges in those circumstances. Please consult with your financial intermediary if you have any questions regarding your

shares’ conversion from Class C shares to Class A shares. To the extent a financial intermediary’s policies provide for no such conversion, or for a conversion schedule that extends beyond the month of the 8-year anniversary of the purchase date, investors holding Class C shares through such financial intermediary may be disadvantaged relative to investors holding Class C shares either at the Fund’s transfer agent or through another financial intermediary. Because Class C shares pay higher ongoing asset-based distribution and shareholder servicing fees than Class A shares, financial intermediaries may have a conflict of interest in establishing their relevant conversion schedules and eligibility requirements. Additional information can be found in Appendix A, “Sales Charge Reductions and Waivers Available Through Certain Intermediaries,” attached to the Fund’s Prospectus.

REDEMPTION OF SHARES

You can redeem shares of the Fund on any Business Day. The Fund may temporarily stop redeeming its shares beyond seven (7) days when the NYSE is closed, when trading on the NYSE is restricted (as determined by the SEC), or when an emergency exists (as determined by the SEC) and the Fund cannot sell its portfolio securities or accurately determine the value of its assets, or if the SEC orders the Fund to suspend redemptions.

The Fund redeems its shares based on the NAV next determined after the time as of which the Fund or, if applicable, its authorized designee receives your redemption request in proper form, subject in some cases to a redemption fee or a CDSC, as described under “Classes of Shares—Contingent Deferred Sales Charges” or a redemption fee as described below in this section. A redemption is a taxable event to you on which you would realize gain or loss (subject to certain limitations on the deductibility of losses). In instances where a redemption fee is triggered, a CDSC may also apply, as described in greater detail in other parts of this prospectus.

You may redeem shares through a broker-dealer, or other financial intermediary that has entered into a selling agreement with the Distributor. The broker-dealer or financial intermediary will transmit a redemption order to SS&C GIDS on your behalf. The redemption request will be effected at the NAV next determined (less any applicable CDSC) after the Fund or, if applicable, its authorized designee receives the request in proper form. If you hold share certificates, you must present the certificates endorsed for transfer.

The Fund is intended for long term investors and not for those who wish to trade frequently in Fund shares. The Fund believes that excessive short term trading of Fund shares creates risks for the Fund and its long term shareholders, including interference with efficient portfolio management, increased administrative and brokerage costs, and potential dilution in the value of the Fund’s shares.

In addition, because the Fund may invest in foreign securities traded primarily on markets that close prior to the time the Fund determines its NAV, frequent trading by some shareholders may, in certain circumstances, dilute the value of the Fund’s shares held by other shareholders. This may occur when an event that affects the value of the foreign securities takes place after the close of the primary foreign market, but before the time that the Fund determines its NAV. Certain investors may seek to take advantage of the fact that there will be a delay in the adjustment of the market price for a security caused by this event until the foreign market reopens (referred to as price arbitrage). If this occurs, frequent traders who attempt this type of price arbitrage may dilute the value of the Fund’s shares to the extent they receive shares or proceeds based upon NAVs that have been calculated using the closing market prices for foreign securities, if those prices have not been adjusted to reflect a change in the fair value of the foreign securities. In an effort to prevent price arbitrage, the Fund has adopted procedures designed to adjust closing market prices of foreign securities before it calculates its NAV when it believes such an event has occurred that will have more than a minimal effect on the NAV. Prices are adjusted to reflect what the Fund believes are the fair values of these foreign securities at the time the Fund determines its NAV (called fair value pricing). Fair value pricing, however, involves judgments that are inherently subjective and inexact since it is not always possible to be sure when an event will affect a market price and to what extent. As a result, there can be no assurance that fair value pricing will always eliminate the risk of price arbitrage.

In order to discourage frequent short term trading in Fund shares, the Fund has adopted policies and procedures that impose a 2.00% redemption fee (short term trading fee) on Class AAA, Class A, Class C, and Class I shares that are redeemed or exchanged within seven days of a purchase. This fee is calculated based on the shares’ aggregate NAV on the date of redemption and deducted from the redemption proceeds. The redemption fee is not a sales charge; it is retained by the Fund and does not benefit the Fund’s Adviser or any other third party. For purposes of computing the redemption fee, shares will be redeemed in reverse order of purchase (the latest shares acquired will be treated as being redeemed first). Redemptions to which the fee applies include redemption of shares resulting from an exchange made pursuant to the Fund’s exchange privilege. The redemption fee will not apply to redemptions of shares where (i) the shares were purchased through automatic reinvestment of dividends or other distributions, (ii) the redemption is initiated by the Fund, (iii) the shares were purchased through programs that collect the redemption fee at the program level and remit them to the Fund, or (iv) the shares were purchased through programs that the Adviser determines to have appropriate anti-short term trading policies in place or as to which the Adviser has received assurances that look through redemption fee procedures or effective anti-short term trading policies and procedures are in place.

While the Fund has entered into information sharing agreements with financial intermediaries which contractually require such financial intermediaries to provide the Fund with information relating to their customers investing in the Fund through non-disclosed or omnibus accounts, the Fund cannot guarantee the accuracy of the information provided to it from financial intermediaries and may not always be able to track short term trading effected through these financial intermediaries. In addition, because the Fund is required to rely on information provided by the financial intermediary as to the applicable redemption fee, the Fund cannot guarantee that the financial intermediary is always imposing such fee on the underlying shareholder in accordance with the Fund’s policies. Subject to the exclusions discussed above, the Fund seeks to apply these policies uniformly.

Certain financial intermediaries may have procedures which differ from those of the Fund to collect the redemption fees or that prevent or restrict frequent trading. Investors should refer to their intermediary’s policies on frequent trading restrictions.

The Fund continues to reserve all rights, including the right to refuse any purchase request (including requests to purchase by exchange) from any person or group who, in the Fund’s view, is likely to engage in excessive trading or if such purchase is not in the best interest of the Fund and to limit, delay, or impose other conditions on exchanges or purchases. The Fund has adopted a policy of seeking to minimize short term trading in its shares and monitors purchase and redemption activities to assist in minimizing short term trading.

If you hold shares directly through the Distributor, you may redeem shares:

If you redeem shares through your broker or other financial intermediary, the broker or financial intermediary will transmit a redemption order to SS&C GIDS on your behalf. The redemption request will be effected at the NAV per share next determined (less any applicable CDSC and redemption fee, if applicable) after a Fund receives the request in proper form. If you hold share certificates, you must present the certificates endorsed for transfer.

Automatic Cash Withdrawal Plan. You may automatically redeem shares on a monthly, quarterly, or annual basis if you have at least $10,000 in your account and if your account is directly registered with SS&C GIDS, call 800-GABELLI (800-422-3554) for more information about this plan.

Involuntary Redemption. The Fund may redeem all shares in your account (other than an IRA or Coverdell education savings account) if the value falls below $1,000 as a result of redemptions (but not as a result of a decline in NAV). You will be notified in writing before the Fund initiates such action and you will be allowed thirty days to increase the value of your account to at least $1,000. The Distributor will waive any CDSC in connection with an involuntary redemption.

Reinstatement Privilege. A shareholder in the Fund who has redeemed Class A shares may reinvest, without a sales charge, up to the full amount of such redemption at the NAV determined at the time of the reinvestment within ninety days of the original redemption. A redemption is a taxable transaction and a gain or loss may be recognized for federal income tax purposes even if the reinstatement privilege is exercised. However, any loss realized upon the redemption will not be recognized as to the number of shares acquired by reinstatement, in which case an adjustment will be made to the tax basis of the shares so acquired.

Redemption Proceeds. The Fund expects to meet redemption requests typically by selling portfolio assets, with holdings of cash and cash equivalents, or by drawing on its line of credit. In certain circumstances, the Fund may meet a redemption request in-kind, as described under “Redemption In Kind.” These methods of meeting redemption requests are expected to be used in both normal and stressed market conditions. A redemption request received by the Fund will be effected based on the NAV per share next determined after the time as of which the Fund or, if applicable, its authorized designee, receives the request. If you request redemption proceeds by wire, the Fund will normally wire the funds according to the wire instructions you provide, within three business days after receipt of your redemption request. If you request redemption proceeds by check, the Fund will normally mail the check to you within seven days after receipt of your redemption request. If you purchased your Fund shares by check or through the Automatic Investment Plan you may not receive proceeds from your redemption until the check clears or ten days following the purchase, whichever is earlier. While the Fund will delay the processing of the redemption payment until the check clears, your shares will be valued at the next determined NAV after receipt of your redemption request. Typically, the Fund receives redemption requests through the National Securities Clearing Corporation (“NSCC”) system, which is utilized by

financial intermediaries to submit requests on behalf of their clients or customers who hold shares of the Fund in “street name.” In such circumstances, the Fund expects redemption proceeds to be delivered via the NSCC system within three business days after receipt of a redemption request. The NSCC system is not used for shareholders whose accounts are held at the Fund’s transfer agent (as opposed to shareholders whose accounts are held in “street name” at a broker or other financial intermediary).

Redemption In Kind. The Fund may pay your redemption proceeds wholly or partially in portfolio securities. Specifically, the Fund may pay your redemption proceeds in portfolio securities if you redeem more than $250,000 over the preceding three months, and the Adviser believes that economic conditions exist which would make payments in cash detrimental to the best interests of the Fund. In such an instance, the Fund would communicate to you its intention to meet your redemption request in portfolio securities. Securities received in kind will remain subject to the risk of market fluctuations until sold; however, the Fund would distribute to you from its portfolio of investments only securities that the Adviser determines are readily marketable. The specific security or securities to be distributed will be selected at the discretion of the Board or its designee(s), subject to any applicable laws or regulations, and could be individual securities, a representative basket of securities or a pro rata slice of the Fund’s portfolio. Any additional remainder in value owed to you between such securities and Fund shares that you submitted for redemption would be paid to you in cash. Payments would be made in portfolio securities only in instances where the Fund’s Board (or its delegate) believes that it would be in the Fund’s best interest not to pay the redemption proceeds in cash. A redemption in kind would be a taxable event to you on which you would realize a capital gain or capital loss on your shares redeemed. Additionally, you may incur brokerage costs in converting any of the securities received to cash. The foregoing considerations apply in both normal and stressed market considerations. Please see “Redemption of Shares” in the SAI for additional information.

EXCHANGE OF SHARES

You can exchange shares of the Fund for shares of the same class of certain other funds managed by the Adviser or its affiliates based on their relative NAVs at the time of exchange. To obtain a list of the funds whose shares you may acquire through an exchange, call 800-GABELLI (800-422-3554), or contact your broker. Class C shares will continue to age from the date of the original purchase of such shares and will assume the CDSC rate such shares had at the time of exchange. You may also exchange your shares for shares of the same class of a money market fund managed by the Adviser or its affiliates without imposition of any CDSC at the time of exchange. Upon subsequent redemption from such money market fund or the Fund (after re-exchange into the Fund), such shares will be subject to the CDSC calculated by excluding the time such shares were held in a Gabelli money market fund. The Fund may impose limitations on, or terminate, the exchange privilege with respect to any investor at any time. You will be given notice at least sixty days prior to any material change in the exchange privilege. An exchange of shares is a taxable event to you on which you would realize capital gain or loss (subject to possible limitations of deductibility).

In effecting an exchange:

You may exchange shares through the Distributor, directly through the Transfer Agent, or through your financial intermediary that has entered into the appropriate selling agreement with the Distributor.

Your financial intermediary may charge you a processing fee for assisting you in purchasing or redeeming shares of the Fund. This charge is set by your financial intermediary and does not benefit the Fund, the Distributor, or the Adviser in any way. It would be in addition to the sales charges and other costs, if any, described in this prospectus and must be disclosed to you by your broker-dealer or other financial intermediary.

PRICING OF FUND SHARES

The Fund’s NAV is calculated separately for each class of shares on each Business Day. The NYSE is open Monday through Friday, but currently is scheduled to be closed on New Year’s Day, Martin Luther King, Jr. Day, Presidents’ Day, Good Friday, Memorial Day, Juneteenth National Independence Day, Independence Day, Labor Day, Thanksgiving Day, and Christmas Day and on the preceding Friday or subsequent Monday when a holiday falls on a Saturday or Sunday, respectively.

The Fund’s NAV is determined as of the close of regular trading on the NYSE, normally 4:00 p.m, Eastern Time. The NAV of each class is computed by dividing the value of the Fund’s net assets, i.e., the value of its securities and other assets less its liabilities including expenses payable or accrued but excluding capital stock and surplus attributable to the applicable class of shares by the total number of shares of such class outstanding at the time the determination is made. The price of Fund shares for the purpose of purchase and redemption orders will be based upon the calculation of the NAV of each class next made after the time

as of which the purchase or redemption order is received in proper form. Because the Fund may invest in foreign securities that are primarily listed on foreign exchanges that trade on weekends or other days when the Fund does not price its shares, the NAV of the Fund’s shares may change on days when shareholders will not be able to purchase or redeem the Fund’s shares.

Equity securities listed or traded on a nationally recognized securities exchange or traded in the U.S. over-the-counter market where trades are reported contemporaneously and for which market quotations are readily available are valued at the last quoted sale or a market’s official closing price at the close of the exchange’s or other market’s regular trading hours, as of or prior to the time and day as of which such value is being determined. Portfolio securities traded on more than one national securities exchange or market are valued according to the broadest and most representative market as determined by the Adviser. If there has been no sale on the day the valuation is made, the securities are valued at the mean of the closing bid and ask prices on the principal market for such security on such day. If no ask prices are quoted on such day, then the security is valued at the closing bid price on the principal market for such security on such day. If no bid or ask prices are quoted on such day, the Fund’s accounting agent will notify the Adviser and the security will be valued based on written or standing instructions from the Adviser.

Equity securities which are primarily traded on foreign markets, except for those that trade primarily in Latin America or South America, are generally valued at the preceding closing values of such securities on their respective exchanges. Equity securities which are primarily traded in Latin American or South American markets are valued each day approximately at the time of the close of regular trading on the NYSE as though such time were the close of trading on such Latin American or South American market and such Latin American or South American market were a U.S. market. When the NYSE is open, but the foreign market on which an equity security primarily trades is closed, such as for a foreign national holiday, the security will generally be valued at the last available closing value (subject to the Fair Value Procedures adopted pursuant to Rule 2a-5 under the 1940 Act) using the prevailing exchange rate as described below. If some event occurs affecting or likely to affect the price of an equity security or group of equity securities to a significant extent including but not limited to material market movement, changes in market conditions after a foreign market closes, but prior to 4:00 p.m. Eastern Time, or a company development, such as a material business development, dividend declaration, stock split, or rights offering, and if adequate and timely information relating to the event is not available or is not taken into account by the pricing service, the Adviser should review the pricing furnished by the pricing service to determine whether it is appropriate in the circumstances. In such case, the Adviser will obtain market quotations from another source or will make a fair value determination of such securities using other appropriate value measurements. If the primary market for such an equity security suspends or limits trading or price movements, whether for the market as a whole or the particular security, and trading also occurs on a secondary market which has not suspended or limited trading or price movement, valuation will be based on information from the secondary market provided by the Adviser. If all markets on which such an equity security have suspended trading, the Adviser will fair value such security as provided above. Information that becomes known after the close of the NYSE, normally 4:00 p.m. Eastern time, on any business day may be assessed in determining net asset value per share after the time of receipt of the information, but will not be used to retroactively adjust the price of the security determined earlier or on a prior day.

Initial public offering securities are initially valued at cost. Upon commencement of trading, these securities are valued like any other equity security.

Debt obligations (including convertible debt) for which market quotations are readily available are valued at the average of the latest bid and ask prices. If there were no ask prices quoted on such day, the security is valued using the closing bid price. Such debt obligations are valued through prices provided by a pricing service overseen by the Adviser.

Assets and liabilities denominated in foreign currencies will be translated into U.S. dollars at the prevailing exchange rates as provided by an appropriate pricing service. Forward currency exchange contracts will be valued using interpolated forward exchange rates. Prevailing foreign exchange rates and forward currency foreign exchange rates may generally be obtained on a consistent basis at approximately 11:00 a.m. Eastern time, which approximates the close of the London Exchange. As available and as provided by an appropriate pricing service, translation of foreign security and currency market values will also occur with the use of foreign exchange rates obtained at the close of the NYSE, normally 4:00 p.m. Eastern time.

Certain securities are valued principally using dealer quotations. Futures contracts are valued at the closing settlement price of the exchange or board of trade on which the applicable contract is traded.

OTC futures and options on futures for which market quotations are readily available will be valued by quotations received from a pricing service or, if no quotations are available from a pricing service, by quotations obtained from one or more dealers in the instrument in question by the Adviser.

Occasionally, reliable market quotations are not readily available (such as for certain restricted or unlisted securities and private placements) or securities and other assets may not be reliability priced (such as in the case of trade suspensions or halts, price movement limits set by certain foreign markets, and thinly traded or illiquid securities), or there may be events affecting the value of foreign securities or other securities held by the Funds that occur when regular trading or foreign or other exchanges are closed, but before trading on the NYSE is closed. Securities and other assets for which market quotations are not readily available are fair valued as determined by the Adviser, as the “valuation designee,” as such term is defined in Rule 2a-5(e)(4) of the 1940 Act, pursuant to Fair Value Procedures adopted pursuant to Rule 2a-5 under the 1940 Act. The Board oversees the Adviser in its role as the valuation designee in accordance with the requirements of Rule 2a-5 under the 1940 Act.

Fair valuation methodologies and procedures may include, but are not limited to: analysis and review of available financial and non-financial information about the company; comparisons with the valuation and changes in valuation of similar securities, including a comparison of foreign securities with the equivalent U.S. dollar value American Depositary Receipt securities at the close of the U.S. exchange; and evaluation of any other information that could be indicative of the value of the security.

Attempts to determine the fair value of securities introduce an element of subjectivity to the pricing of securities. As a result, the price of a security determined through fair valuation techniques may differ from the price quoted or published by other sources and may not accurately reflect the market value of the security when trading resumes.

DIVIDENDS AND DISTRIBUTIONS

Dividends out of net investment income and capital gains, if any, will be paid annually for the Fund. You may have dividends and/or capital gain distributions that are declared by the Fund automatically reinvested at NAV in additional shares of the Fund. You will make an election to receive dividends and distributions in cash or Fund shares at the time you first purchase your shares. You may change this election by notifying

the Fund or your financial intermediary in writing at any time prior to the record date for a particular dividend or distribution. There are no sales or other charges by the Fund in connection with the reinvestment of dividends and capital gain distributions. Shares purchased through dividend reinvestment will receive a price without sales charge based on the NAV on the reinvestment date, which is typically the date dividends are paid to shareholders. Distributions are taxable to you whether received in cash or additional shares. A dividend or capital gain distribution paid on shares purchased shortly before the record date for that dividend or capital gain distribution was declared will be subject to income taxes. There is no fixed dividend rate, and there can be no assurance that the Fund will pay any dividends or realize any capital gains or other income with which to pay dividends and distributions. Dividends and distributions may be different for different classes of shares of the Fund.

TAX INFORMATION

The Fund expects that distributions will consist primarily of investment company taxable income and net capital gain. Dividends paid from investment company taxable income (including distributions of net short term capital gains i.e., gains from securities held by the Fund for one year or less) are taxable to you as ordinary income if you are a U.S. Shareholder, except that qualified dividends may be eligible for the reduced federal tax rate applicable to long term capital gains. It is likely that not all of the Fund’s dividends will be qualified dividends for purposes of this reduced rate of tax. Properly reported distributions of net capital gain, (i.e., net long term capital gains minus net short term capital loss) (“Capital Gain Dividends”) are taxable to you at long term capital gain rates no matter how long you have owned your shares. The Fund has a significant amount of capital loss carryforwards which will offset future recognized gains. As a result, Capital Gain Dividends are not expected until the capital loss carryforwards are utilized or expire. The Fund’s distributions, whether you receive them in cash or reinvest them in additional Fund shares, generally will be subject to federal, and, if applicable state, and local taxes. A redemption of Fund shares or an exchange of the Fund’s shares for shares of another fund will be treated for tax purposes as a sale of the Fund’s shares and any gain you realize on such a transaction generally will be taxable. Foreign shareholders may be subject to a federal withholding tax.

A distribution declared by the Fund in October, November, or December to shareholders of record on a specified date in such a month and paid during January of the following year may in certain circumstances be treated as paid in December for tax purposes.

After the end of each year, the Fund will provide you with the information regarding any shares you redeemed and the federal tax status of any dividends or distributions you received during the previous year.

If you sell your Fund shares it is considered a taxable event for you. Depending on the purchase price and the sale price of the shares you sell, you may have a gain or a loss on the transaction. You are responsible for any tax liabilities generated by your transaction.

By federal law, the Fund must withhold, as backup withholding, a percentage (currently 24%) of your taxable distributions and redemption proceeds if you do not provide your correct social security or taxpayer identification number and certify that you are not subject to backup withholding, or if the Internal Revenue Service instructs the Fund to do so.

This summary of tax consequences is intended for general information only and is subject to change by legislative, judicial, or administrative action, and any such change may be retroactive. The Fund does not consider taxes to be of primary importance in implementing its investment strategy. A more complete

discussion of the tax rules applicable to you and the Fund can be found in the SAI that is incorporated by reference into this prospectus. You should consult a tax adviser concerning the tax consequences of your investment in the Fund based on your individual circumstances.

MAILINGS AND E-DELIVERY TO SHAREHOLDERS

In our continuing efforts to reduce duplicative mail and Fund expenses, we currently send a single copy of prospectuses and shareholder reports to your household even if more than one member in your household owns the same fund or funds described in the prospectus or report. Additional copies of our prospectuses and reports may be obtained by calling 800-GABELLI (800-422-3554). If you do not want us to continue to consolidate your fund mailings and would prefer to receive separate mailings at any time in the future, please call us at the telephone number above and we shall resume separate mailings, in accordance with your instructions, within thirty days of your request. The Fund offers electronic delivery of Fund documents. Direct shareholders of the Fund can elect to receive the Fund’s annual, semiannual and quarterly reports, as well as manager commentaries and prospectuses via e-delivery. For more information or to sign up for e-delivery, please visit the Fund’s website at www.gabelli.com. Shareholders who purchased shares of the Fund through a financial intermediary should contact their financial intermediary to sign up for e-delivery of the Fund documents, if available.

As permitted by regulations adopted by the Securities and Exchange Commission, paper copies of the Fund’s annual and semiannual shareholder reports will no longer be sent by mail, unless you specifically request paper copies of the reports. Instead, the reports will be made available on the Fund’s website (https://gabelli.com/), and you will be notified by mail each time a report is posted and provided with a website link to access the report. If you already elected to receive shareholder reports electronically, you will not be affected by this change and you need not take any action. To elect to receive all future reports on paper free of charge, please contact your financial intermediary, or, if you invest directly with the Fund, you may call 800-422-3554 or send an email request to [email protected]. Your election to receive reports on paper will apply to all funds held in your account if you invest through your financial intermediary or all funds held within the fund complex if you invest directly with the Fund.

FINANCIAL HIGHLIGHTS

The Financial Highlights table is intended to help you understand the financial performance of the Fund for the past five fiscal years of the Fund’s Class AAA, Class A, Class C, and Class I shares. The total returns in the table represent the percentage amount that an investor would have earned or lost on an investment in the designated class of shares (assuming reinvestment of all distributions). This information has been audited by Ernst & Young LLP, independent registered public accounting firm, whose report, along with the Fund’s financial statements and related notes, is included in the Fund’s annual report, which is available upon request.

Comstock Capital Value Fund

Financial Highlights

Selected data for a share of capital stock outstanding throughout each year: