NYSE:RMM Rivernorth Managed Duration Municipal Income Fund (RMM) Price, Holdings, & News $13.86 +0.04 (+0.30%) Closing price 09/11/2026 03:58 PM EasternExtended Trading$13.88 +0.02 (+0.14%) As of 09/11/2026 07:30 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more. Add Compare Share Share Stock Analysis Stock AnalysisChartDividendNews and TrendsOwnershipSEC Filings About Rivernorth Managed Duration Municipal Income Fund (NYSE:RMM) View Price History Chart DataSkip Price History Chart 1 Day 5 Days 30 Days 90 Days 1 Year Advanced 1 Day 1 Day 5 Days 30 Days 90 Days 1 Year Advanced Show volume Show extended hours Get RMM alerts:Sign Up Key Stats Today's Range$13.81▼$13.9750-Day Range$13.83▼$14.9752-Week Range$13.35▼$15.00Volume22,911 shsAverage Volume49,154 shsMarket CapitalizationN/AAssets Under Management$402.02 millionDividend YieldN/ANet Expense Ratio0.00%Aggregate RatingN/A ETF Overview Rivernorth Managed Duration Municipal Income Fund Inc. is a closed ended fixed income mutual fund launched and managed by RiverNorth Capital Management, LLC. The fund is co-managed by MacKay Shields LLC. It invests in the fixed income markets of the United States. The fund primarily invests in investment grade municipal debt securities. It seeks to invest in securities of any maturity. The fund employs a combination of fundamental and quantitative analysis. It benchmarks the performance of its portfolio against the Bloomberg Barclays Municipal Bond Index. The fund employs proprietary research to create its portfolio. Rivernorth Managed Duration Municipal Income Fund Inc. was formed on July 26, 2019 and is domiciled in the United States. Read More Rivernorth Managed Duration Municipal Income Fund ExpensesTypeRMMNYSE ETFsAll ETFsManagement Fee0.00%0.50%0.53%Other Expenses0.00%0.58%0.54%Total Expense0.00%0.62%0.73%Fee Waiver0.00%-0.45%-0.68%Net Expense0.00%0.55%0.60% Receive RMM Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Rivernorth Managed Duration Municipal Income Fund and its competitors with MarketBeat's FREE daily newsletter. 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RMM ETF News HeadlinesRiverNorth Managed Duration Muni Income Fd II Inc.July 31, 2026 | seekingalpha.comLocking In Generational Yields While Wall Street Fixates On The FedJuly 18, 2026 | seekingalpha.comSmall Colorado Company (Backed by Sam Altman) Could Save U.S. Power GridA small Colorado company has secured rights to technology that could prevent the U.S. public power grid from collapsing — and billionaire Sam Altman is now an investor. This under-the-radar firm is drawing serious attention from those watching the energy infrastructure space closely.September 13 at 1:00 AM | Altimetry (Ad)RFMZ RiverNorth Flexible Municipal Income Fund II Inc.June 27, 2026 | seekingalpha.comI Am Collecting Magnificent 7% Yields At Bargain PricesMay 24, 2026 | seekingalpha.comSeeking Yields Of +7%March 23, 2026 | seekingalpha.comSee More Headlines RMM ETF - Frequently Asked Questions How have RMM shares performed this year? Rivernorth Managed Duration Municipal Income Fund's stock was trading at $13.61 on January 1st, 2026. Since then, RMM stock has increased by 1.8% and is now trading at $13.8610. When did Rivernorth Managed Duration Municipal Income Fund IPO? Rivernorth Managed Duration Municipal Income Fund (RMM) raised $0 in an initial public offering on Friday, July 26th 2019. The company issued 0 shares at a price of $20.00 per share. Who are Rivernorth Managed Duration Municipal Income Fund's major shareholders? Top institutional shareholders of Rivernorth Managed Duration Municipal Income Fund include Robinson Capital Management LLC, HighTower Advisors LLC, XML Financial LLC and NewEdge Advisors LLC. Insiders that own company stock include Patrick W Galley and Jonathan Paul Browne. View institutional ownership trends. How do I buy shares of Rivernorth Managed Duration Municipal Income Fund? Shares of RMM stock can be purchased through any online brokerage account. Popular online brokerages with access to the U.S. stock market include Charles Schwab, E*TRADE, Fidelity, and Vanguard Brokerage Services. What other stocks do shareholders of Rivernorth Managed Duration Municipal Income Fund own? Based on aggregate information from My MarketBeat watchlists, some other companies that Rivernorth Managed Duration Municipal Income Fund investors own include DoubleLine Income Solutions Fund (DSL), Ares Capital (ARCC), Main Street Capital (MAIN), Stag Industrial (STAG), Arbor Realty Trust (ABR), BCE (BCE) and Fund Details Issuer Fund NameRiverNorth Managed Duration Municipal Income Fund, Inc. Tax Classification Stock ExchangeNYSECurrent SymbolNYSE:RMM Inception Date1/1/2100 Fund ManagerN/A Webwww.rivernorth.com Phone312-832-1440Fund Focus Asset Class BenchmarkN/A Category Focus Development Level Region Number of Holdings0 Fund Statistics Assets Under Management$402.02 million Average Daily Volume$0.00 Discount/Premium0.00% Administrator, Advisor and Custodian AdministratorN/A AdvisorN/A CustodianN/A DistributorN/A Transfer AgentN/A TrusteeN/A Lead Market MakerN/A Miscellaneous Outstanding SharesN/ABetaN/A Don't Wait for the OpenAI IPOThe AI wave will soon hit public markets with Anthropic and OpenAI set to go public later this year. However, you don't have to wait to invest. This report shows seven AI stocks that you can buy today while the big model providers get ready to go public.Get This Free Report This page (NYSE:RMM) was last updated on 9/13/2026 by MarketBeat.com Staff. 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