Company: RIV
Filing Date: 2025-09-08
Form Type: 424B2
Source: 0001398344-25-017856
Chunk: 6

Company: RIVERNORTH OPPORTUNITIES FUND, INC.
Filing Date: 2025-09-08
Form: 424B2
Chunk 6
---
 accompanying Prospectus.

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This Prospectus Supplement and accompanying
Prospectus sets forth concisely the information about the Fund and the Offer that a prospective investor ought to know before investing
in the Fund and participating in the Offer. You should read this Prospectus Supplement and accompanying Prospectus, which contains important
information about the Fund, before deciding whether to invest in the Fund’s Common Shares and retain it for future reference. A
Statement of Additional Information dated March 31, 2025 (the “SAI”), containing additional information about the Fund, has
been filed with the SEC and is incorporated by reference in its entirety into the accompanying Prospectus, which means that it is part
of the accompanying Prospectus for legal purposes. You may request a free copy of the SAI, the Fund’s Annual and Semi-Annual Reports,
request other information about the Fund and make stockholder inquiries by calling (844) 569-4750, (toll-free) or by writing to the Fund
at 360 South Rosemary Avenue, Suite 1420, West Palm Beach, FL 33401, or obtain a copy of such documents (and other information regarding
the Fund) by visiting the Fund’s website at rivernorth.com/riv (information included on the website does not form a part
of this Prospectus Supplement or accompanying Prospectus), or from the SEC’s website (sec.gov). For additional information
all holders of Rights should contact the Information Agent, Georgeson LLC (“Georgeson” or the “Information Agent”)
toll free at (866) 357-5086 or send a written request to Georgeson at 1290 Avenue of the Americas, 9th floor, New York, NY 10104.

The Fund’s Common Shares do not represent a deposit or obligation of, and are not guaranteed or endorsed by, any bank or other insured depository institution, and are not federally insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency.

Capitalized terms used herein that are not
otherwise defined shall have the meanings assigned to them in the accompanying Prospectus.

<div align='center'>Prospectus Supplement dated September 8,
2025</div>

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<div align='center'>TABLE OF CONTENTS

Prospectus Supplement</div>

|                                                            | Page |
| Prospectus Supplement Summary                              | S-8  |
| Summary of Fund Expenses                                   | S-14 |
| Capitalization