RMM · NYSE · Closed-end fund
RiverNorth Managed Duration Municipal Income Fund (RMM) Price, Holdings & Fees
RiverNorth Managed Duration Municipal Income Fund (RMM) closed at $323.12 on Oct 9, 2026, up 0.92% from the previous close of $320.18.
Share price, past year
1Y +32.30%Monthly closing prices
| Date | Close |
|---|---|
| Oct 9, 2026 | $323.12 |
| Sep 30, 2026 | $316.33 |
| Aug 31, 2026 | $307.60 |
| Jul 31, 2026 | $300.94 |
| Jun 30, 2026 | $301.55 |
| May 29, 2026 | $284.45 |
| Apr 30, 2026 | $278.65 |
| Mar 31, 2026 | $276.71 |
| Feb 27, 2026 | $261.56 |
| Jan 30, 2026 | $269.65 |
| Dec 31, 2025 | $265.49 |
| Nov 28, 2025 | $244.97 |
| Oct 31, 2025 | $247.82 |
Key statistics
- Expense ratio
- 5.88%
- as of Jun 30, 2026
- Net assets
- $303.3M
- as of Jun 30, 2026
- Holdings
- 110
- as of Jun 30, 2026
- 52-week range
- $240.86 – $323.12
RiverNorth Managed Duration Municipal Income Fund's expense ratio is 5.88%: $588.00 a year on $10,000 invested.
Holdings
RiverNorth Managed Duration Municipal Income Fund held 110 investments worth $303.26M as of Jun 30, 2026. Its largest holding was Blackrock Muniholdings Fund Inc, at 8.29% of the fund.
| # | Holding | % of fund | Value |
|---|---|---|---|
| 1 | Blackrock Muniholdings Fund Inc | 8.29% | $25.15M |
| 2 | Blackrock Muniyield Quality Fund Inc | 6.56% | $19.91M |
| 3 | Blackrock Liquidity Funds Municash | 5.62% | $17.03M |
| 4 | Blackrock Muniyield Quality Fund Iii Inc | 4.78% | $14.50M |
| 5 | North Carolina St Turnpike Auth | 4.73% | $14.36M |
| 6 | New Hope Cultural Edu Facs Fin Corp Tx Hosp Revenue | 4.68% | $14.19M |
| 7 | Washington Dc Met Area Transit Auth Dedicated Revenue | 4.45% | $13.51M |
| 8 | Polk Cnty Ia | 4.37% | $13.27M |
| 9 | Massachusetts St Transprtn Fund Revenue | 4.14% | $12.54M |
| 10 | San Diego Cnty Ca Regl Arpt Auth Airport Revenue | 4.12% | $12.50M |
| 11 | Triborough Ny Bridge & Tunnel Auth Revenues | 3.81% | $11.56M |
| 12 | Michigan St Trunk Line | 3.68% | $11.15M |
| 13 | Mansfield Tx Indep Sch Dist | 3.52% | $10.68M |
| 14 | Harris Cnty Tx Hosp Dist Ctfs Of Oblig | 3.50% | $10.62M |
| 15 | Port Auth Of New York & New Jersey Ny | 3.50% | $10.62M |
| 16 | Chicago Il O'hare International Arpt Revenue | 3.47% | $10.51M |
| 17 | Denver City & Cnty Co Sch Dist #1 | 3.46% | $10.50M |
| 18 | Ishares National Muni Bond Etf | 3.45% | $10.47M |
| 19 | Kansas City Mo Indl Dev Auth Arpt Spl Oblig | 3.20% | $9.70M |
| 20 | Invesco Municipal Trust | 3.16% | $9.60M |
| 21 | Chicago Il Wtrwks Revenue | 2.81% | $8.53M |
| 22 | New York Ny | 2.69% | $8.17M |
| 23 | Salt Lake City Ut Arpt Revenue | 2.61% | $7.90M |
| 24 | Blackrock Taxable Municipal Bond Trust | 2.58% | $7.83M |
| 25 | California St Univ Revenue | 2.48% | $7.53M |
Top 25 of 110 holdings, as of Jun 30, 2026. Percentages are of the fund's net assets.
What the fund owns
| Asset type | % of fund |
|---|---|
| Stocks | 50.67% |
| Bonds and other debt | 42.03% |
| Cash and short-term investments | 5.62% |
| Interest rate derivatives | −62.08% |
| Country | % of fund |
|---|---|
| United States | 31.58% |
| Puerto Rico | 4.66% |
Shares of net assets from the fund's N-PORT report. Funds that borrow can add up to more than 100%, with borrowing (such as repurchase agreements) shown as a negative share.
Monthly total returns
Over the 3 months to Jun 30, 2026, RiverNorth Managed Duration Municipal Income Fund's total return was +10.35%, as reported to the SEC.
| Month | Total return |
|---|---|
| Jun 30, 2026 | +2.37% |
| May 31, 2026 | +3.00% |
| Apr 30, 2026 | +4.66% |
The fund's own total returns as reported to the SEC (N-PORT), including reinvested distributions. Not the sample prices above.
Fund profile
- Name
- RiverNorth Managed Duration Municipal Income Fund, Inc.
- Ticker
- RMM
- Exchange
- NYSE
- Fund type
- Closed-end fund
- SEC CIK
- 0001771226
- Fractional shares
- Yes
Recent SEC filings
- Aug 27, 2026
- Sep 4, 2026
- Mar 6, 2026
- Sep 5, 2025
- Mar 7, 2025
- Sep 6, 2024
- Aug 8, 2024
- Mar 8, 2024
Frequently asked questions
What is RMM's price?
RiverNorth Managed Duration Municipal Income Fund (RMM) closed at $323.12 on Oct 9, 2026, up 0.92% from the previous close of $320.18.
What is RMM's expense ratio?
RiverNorth Managed Duration Municipal Income Fund's expense ratio is 5.88%: $588.00 a year on $10,000 invested.
What does RMM hold?
RiverNorth Managed Duration Municipal Income Fund held 110 investments worth $303.26M as of Jun 30, 2026. Its largest holding was Blackrock Muniholdings Fund Inc, at 8.29% of the fund. Its five largest holdings were Blackrock Muniholdings Fund Inc, Blackrock Muniyield Quality Fund Inc, Blackrock Liquidity Funds Municash, Blackrock Muniyield Quality Fund Iii Inc, North Carolina St Turnpike Auth.
How has RMM performed?
Over the 3 months to Jun 30, 2026, RiverNorth Managed Duration Municipal Income Fund's total return was +10.35%, as reported to the SEC.
Sources and methodology
Holdings, net assets and monthly returns come from the fund's N-PORT filing with the SEC, as of Jun 30, 2026 (filed Aug 27, 2026). The expense ratio is from the fund's prospectus or shareholder report, as of Jun 30, 2026. Prices are generated sample data for development. Data sources and disclosures