# Rivernorth Managed Duration Municipal Income Fund Inc. (RMM): Closed-End Fund Facts & Distributions > Markdown mirror of https://www.dividenddata.com/funds/rmm for AI agents. Same live data as the HTML page, regenerated on the same refresh cycle. Not investment advice. - Issuer: — · Asset class: Bond - Strategy: Actively Managed · Inception: 2019-07-26 The Rivernorth Managed Duration Municipal Income Fund Inc. (RMM) is a closed-end investment vehicle dedicated to fixed-income assets. It was launched and is managed by RiverNorth Capital Management, LLC, with MacKay Shields LLC serving as co-manager. The fund's strategy involves investing in the U.S. fixed-income markets, with a primary focus on investment-grade municipal debt across all maturities. To guide its investment decisions, the fund utilizes a combination of fundamental and quantitative analysis, underpinned by proprietary research for portfolio construction. Its performance is me... ## Key Facts | Metric | Value | |---|---| | Price | $13.07 | | Expense Ratio | 4.31% | | Market Value | $258.0M | | NAV | Not on file (no daily NAV for closed-end funds) | | Holdings Count | — | | Distribution Yield (TTM) | 7.87% | | Annual Distribution (TTM) | $1.03 /share | | Distribution Frequency | Monthly | | 52-Week Range | $12.15 – $15.00 | | Beta | 0.75 | ## Latest Distribution - Amount: $0.0847 /share - Ex-date: 2026-10-15 - Pay date: 2026-10-30 ## Next Distribution (Declared) - Amount: $0.0847 /share - Ex-date: 2026-11-16 - Pay date: 2026-11-30 ## Frequently Asked Questions ### What does RMM invest in? The Rivernorth Managed Duration Municipal Income Fund Inc. (RMM) is a closed-end investment vehicle dedicated to fixed-income assets. It was launched and is managed by RiverNorth Capital Management, LLC, with MacKay Shields LLC serving as co-manager. The fund's strategy involves investing in the U.S. fixed-income markets, with a primary focus on investment-grade municipal debt across all maturities. To guide its investment decisions, the fund utilizes a combination of fundamental and quantitative analysis, underpinned by proprietary research for portfolio construction. Its performance is measured against the Bloomberg Barclays Municipal Bond Index. This fund, domiciled in the United States, commenced operations on July 26, 2019. ### What is the expense ratio of RMM? Rivernorth Managed Duration Municipal Income Fund Inc. (RMM) charges an expense ratio of 4.31%. This is the annual fee deducted from fund assets to cover management and operations. ### What is RMM's dividend yield? RMM's trailing-twelve-month yield is 7.87%, calculated from the sum of dividends over the past year divided by the current price. ### What is the duration of RMM? Effective duration measures RMM's sensitivity to interest-rate changes: a duration of 6 means a 1% rate move shifts NAV by roughly 6% in the opposite direction. RMM's current duration is published on the fund's factsheet on the issuer's website. ### What is the credit quality of RMM? RMM's credit quality breakdown (the share of holdings rated AAA through CCC and below) is published on the fund's factsheet. Higher-quality (investment-grade) funds yield less but carry less default risk than high-yield / junk bond funds. ### What is the yield to maturity of RMM? Yield to maturity (YTM) is the total return you'd earn from RMM if every bond in the portfolio is held to maturity at the current price. RMM's YTM is published on the fund's factsheet on the issuer's website. It differs from the trailing-12-month yield because YTM reflects current bond prices rather than historical income paid. ### Does RMM pay a dividend? Yes, Rivernorth Managed Duration Municipal Income Fund Inc. (RMM) distributes dividends to shareholders. The trailing-twelve-month yield is 7.87%. Full dividend history is on this page. ### How often does RMM pay dividends? Rivernorth Managed Duration Municipal Income Fund Inc. pays dividends Monthly. Each ex-dividend date, record date, and payment date is listed in the dividend history table on this page. ### When is RMM's next ex-dividend date? The most recently announced ex-dividend date for RMM was 2026-12-15. The next ex-date typically follows Monthly; once announced it appears at the top of the dividend history table on this page. ### How much will RMM's expense ratio cost me over 30 years? On a $10,000 investment compounding at 7% gross return, a 4.31% expense ratio quietly compounds against your balance every year. The Fee Compounding Forecast card above projects the dollar drag for any holding period and assumption you pick. The typical result for a 1.0% expense ratio on a 30-year hold is roughly 25% of the final balance lost to fees. ### How does RMM charge its expense ratio? The expense ratio is deducted in tiny daily slices from RMM's net asset value (NAV). You never see a bill. The price quoted on every exchange is already net of fees. There's no "fee day" to avoid; the cost is continuous and built into the trading price. ### Why does RMM cost more than a fund like VOO? RMM is actively managed (current expense ratio 4.31%). Active funds charge more than passive index trackers in exchange for the manager's discretion to over- or under-weight positions. The Cost Verdict card above tells you whether RMM's fee is competitive for the active-management cohort. ### Are there cheaper alternatives to RMM? The Lower-Fee Alternatives card above lists closed-end funds following the same investment strategy as RMM (4.31%) but at a lower expense ratio. Each row shows the fee gap, the peer's AUM as a liquidity sanity-check, and a direct link to that fund's analysis page. Cheaper price doesn't automatically mean better. Verify the peer holds what you actually want. ## More on Dividend Data - Overview (HTML): https://www.dividenddata.com/funds/rmm - Distribution history: https://www.dividenddata.com/funds/rmm/dividend - Holdings & diversification: https://www.dividenddata.com/funds/rmm/diversification - Fees & cheaper alternatives: https://www.dividenddata.com/funds/rmm/expenses - Peer comparison: https://www.dividenddata.com/funds/rmm/peers Data sourced from primary filings and market data providers; see https://www.dividenddata.com/methodology.