Funds / RMM

RMM RiverNorth Managed Duration Municipal Income Fund, Inc.

RiverNorth Capital Management · pays monthly

Latest payout

$0.0847

paid Sep 30, 2026

Return of capital

50%

Sep 30 payout · estimated (19a-1)

Next ex-date

Oct 15, 2026

pays Oct 30 · amount TBD

Distribution rate

8.11%

issuer’s annualized rate, Sep 30, 2026

Payouts per share

$0 $0.05 $0.10Oct 31, 2024: $0.0916 · 73% return of capital (final, Form 8937) O2024Nov 29, 2024: $0.0916 · 73% return of capital (final, Form 8937) Dec 31, 2024: $0.0916 · 73% return of capital (final, Form 8937) DJan 31, 2025: $0.0905 · 68% return of capital (final, Form 8937) 2025Feb 28, 2025: $0.0905 · 68% return of capital (final, Form 8937) FMar 31, 2025: $0.0905 · 68% return of capital (final, Form 8937) Apr 30, 2025: $0.0905 · 68% return of capital (final, Form 8937) AMay 30, 2025: $0.0905 · 68% return of capital (final, Form 8937) Jun 30, 2025: $0.0905 · 68% return of capital (final, Form 8937) JJul 31, 2025: $0.0905 · 68% return of capital (final, Form 8937) Aug 29, 2025: $0.0905 · 68% return of capital (final, Form 8937) ASep 30, 2025: $0.0905 · 68% return of capital (final, Form 8937) Oct 31, 2025: $0.0905 · 68% return of capital (final, Form 8937) ONov 28, 2025: $0.0905 · 68% return of capital (final, Form 8937) Dec 31, 2025: $0.0905 · 68% return of capital (final, Form 8937) DJan 30, 2026: $0.0847 · 100% return of capital (final, Form 8937) 2026Feb 27, 2026: $0.0847 · 100% return of capital (final, Form 8937) FMar 31, 2026: $0.0847 · 100% return of capital (final, Form 8937) Apr 30, 2026: $0.0847 · 100% return of capital (final, Form 8937) AMay 29, 2026: $0.0847 · 100% return of capital (final, Form 8937) Jun 30, 2026: $0.0847 · 100% return of capital (final, Form 8937) JJul 31, 2026: $0.0847 · 51% return of capital (estimated, 19a-1) Aug 31, 2026: $0.0847 · 58% return of capital (estimated, 19a-1) ASep 30, 2026: $0.0847 · 50% return of capital (estimated, 19a-1) $0 $0.05 $0.10Oct 31, 2025: $0.0905 · 68% return of capital (final, Form 8937) O2025Nov 28, 2025: $0.0905 · 68% return of capital (final, Form 8937) NDec 31, 2025: $0.0905 · 68% return of capital (final, Form 8937) DJan 30, 2026: $0.0847 · 100% return of capital (final, Form 8937) J2026Feb 27, 2026: $0.0847 · 100% return of capital (final, Form 8937) FMar 31, 2026: $0.0847 · 100% return of capital (final, Form 8937) MApr 30, 2026: $0.0847 · 100% return of capital (final, Form 8937) AMay 29, 2026: $0.0847 · 100% return of capital (final, Form 8937) MJun 30, 2026: $0.0847 · 100% return of capital (final, Form 8937) JJul 31, 2026: $0.0847 · 51% return of capital (estimated, 19a-1) JAug 31, 2026: $0.0847 · 58% return of capital (estimated, 19a-1) ASep 30, 2026: $0.0847 · 50% return of capital (estimated, 19a-1) S
  • Income (the berries)
  • Return of capital (a cutting from the bush)
  • Return of capital, estimated

What the past year did to your cost basis

Holding 100 shares of RMM through the last 12 payouts, you’d have collected $103.38. About $82.66 of it (80%) was return of capital: not taxed when paid, but it came off your cost basis, which raises the gain when you sell.

Uses the issuer’s final Form 8937 figures where filed and 19a-1 estimates otherwise. Gooseberry does this per lot, with your real purchase dates.

Upcoming dates

Ex-datePay datePer shareStatus
Oct 15, 2026Oct 30, 2026—Amount TBD
Nov 16, 2026Nov 30, 2026—Amount TBD
Dec 15, 2026Dec 31, 2026—Amount TBD

To be paid, you need to own shares before the ex-date. “Projected” dates are estimated from the fund’s usual schedule until the issuer announces them.

Payout history

PaidEx-datePer shareReturn of capitalSource
Sep 30, 2026 Sep 15, 2026 $0.0847 50% estimated (19a-1) 19a-1
Aug 31, 2026 Aug 14, 2026 $0.0847 58% estimated (19a-1) 19a-1
Jul 31, 2026 Jul 15, 2026 $0.0847 51% estimated (19a-1) 19a-1
Jun 30, 2026 Jun 15, 2026 $0.0847 100% final (Form 8937) Form 8937
May 29, 2026 May 15, 2026 $0.0847 100% final (Form 8937) Form 8937
Apr 30, 2026 Apr 15, 2026 $0.0847 100% final (Form 8937) Form 8937
Mar 31, 2026 Mar 16, 2026 $0.0847 100% final (Form 8937) Form 8937
Feb 27, 2026 Feb 13, 2026 $0.0847 100% final (Form 8937) Form 8937
Jan 30, 2026 Jan 15, 2026 $0.0847 100% final (Form 8937) Form 8937
Dec 31, 2025 Dec 15, 2025 $0.0905 68% final (Form 8937) Form 8937
Nov 28, 2025 Nov 14, 2025 $0.0905 68% final (Form 8937) Form 8937
Oct 31, 2025 Oct 15, 2025 $0.0905 68% final (Form 8937) Form 8937
Sep 30, 2025 Sep 15, 2025 $0.0905 68% final (Form 8937) Form 8937
Aug 29, 2025 Aug 15, 2025 $0.0905 68% final (Form 8937) Form 8937
Jul 31, 2025 Jul 15, 2025 $0.0905 68% final (Form 8937) Form 8937
Jun 30, 2025 Jun 13, 2025 $0.0905 68% final (Form 8937) Form 8937
May 30, 2025 May 15, 2025 $0.0905 68% final (Form 8937) Form 8937
Apr 30, 2025 Apr 15, 2025 $0.0905 68% final (Form 8937) Form 8937
Mar 31, 2025 Mar 14, 2025 $0.0905 68% final (Form 8937) Form 8937
Feb 28, 2025 Feb 14, 2025 $0.0905 68% final (Form 8937) Form 8937
Jan 31, 2025 Jan 15, 2025 $0.0905 68% final (Form 8937) Form 8937
Dec 31, 2024 Dec 13, 2024 $0.0916 73% final (Form 8937) Form 8937
Nov 29, 2024 Nov 15, 2024 $0.0916 73% final (Form 8937) Form 8937
Oct 31, 2024 Oct 15, 2024 $0.0916 73% final (Form 8937) Form 8937
Show 61 earlier payouts
Sep 30, 2024 Sep 13, 2024 $0.0916 73% final (Form 8937) Form 8937
Aug 30, 2024 Aug 15, 2024 $0.0916 73% final (Form 8937) Form 8937
Jul 31, 2024 Jul 15, 2024 $0.0916 73% final (Form 8937) Form 8937
Jun 28, 2024 Jun 14, 2024 $0.0916 73% final (Form 8937) Form 8937
May 31, 2024 May 14, 2024 $0.0916 73% final (Form 8937) Form 8937
Apr 30, 2024 Apr 12, 2024 $0.0916 73% final (Form 8937) Form 8937
Mar 28, 2024 Mar 14, 2024 $0.0916 73% final (Form 8937) Form 8937
Feb 29, 2024 Feb 14, 2024 $0.0916 73% final (Form 8937) Form 8937
Jan 31, 2024 Jan 12, 2024 $0.0916 73% final (Form 8937) Form 8937
Dec 29, 2023 Dec 14, 2023 $0.0911 70% final (Form 8937) Form 8937
Nov 30, 2023 Nov 14, 2023 $0.0911 70% final (Form 8937) Form 8937
Oct 31, 2023 Oct 12, 2023 $0.0911 70% final (Form 8937) Form 8937
Sep 29, 2023 Sep 14, 2023 $0.0911 70% final (Form 8937) Form 8937
Aug 31, 2023 Aug 14, 2023 $0.0911 70% final (Form 8937) Form 8937
Jul 31, 2023 Jul 13, 2023 $0.0911 70% final (Form 8937) Form 8937
Jun 30, 2023 Jun 14, 2023 $0.0911 70% final (Form 8937) Form 8937
May 31, 2023 May 12, 2023 $0.0911 70% final (Form 8937) Form 8937
Apr 28, 2023 Apr 13, 2023 $0.0911 70% final (Form 8937) Form 8937
Mar 31, 2023 Mar 14, 2023 $0.0911 70% final (Form 8937) Form 8937
Feb 28, 2023 Feb 14, 2023 $0.0911 70% final (Form 8937) Form 8937
Jan 31, 2023 Jan 12, 2023 $0.0911 70% final (Form 8937) Form 8937
Dec 30, 2022 Dec 14, 2022 $0.0929 70% estimated (19a-1) 19a-1
Nov 30, 2022 Nov 14, 2022 $0.0929 65% estimated (19a-1) 19a-1
Oct 31, 2022 Oct 13, 2022 $0.0929 42% estimated (19a-1) 19a-1
Sep 30, 2022 Sep 15, 2022 $0.0929 76% estimated (19a-1) 19a-1
Aug 31, 2022 Aug 16, 2022 $0.0929 66% estimated (19a-1) 19a-1
Jul 29, 2022 Jul 14, 2022 $0.0929 49% estimated (19a-1) 19a-1
Jun 30, 2022 Jun 15, 2022 $0.0929 6% final (Form 8937) Form 8937
May 31, 2022 May 12, 2022 $0.0929 6% final (Form 8937) Form 8937
Apr 29, 2022 Apr 13, 2022 $0.0929 6% final (Form 8937) Form 8937
Mar 31, 2022 Mar 16, 2022 $0.0929 6% final (Form 8937) Form 8937
Feb 28, 2022 Feb 10, 2022 $0.0929 6% final (Form 8937) Form 8937
Jan 31, 2022 Jan 13, 2022 $0.0929 6% final (Form 8937) Form 8937
Dec 31, 2021 Dec 15, 2021 $0.0917 59% estimated (19a-1) 19a-1
Nov 30, 2021 Nov 10, 2021 $0.0917 58% estimated (19a-1) 19a-1
Oct 29, 2021 Oct 14, 2021 $0.0917 56% estimated (19a-1) 19a-1
Sep 30, 2021 Sep 15, 2021 $0.0917 59% estimated (19a-1) 19a-1
Aug 31, 2021 Aug 16, 2021 $0.0917 Not published
Jul 30, 2021 Jul 15, 2021 $0.0917 53% estimated (19a-1) 19a-1
Jun 30, 2021 Jun 15, 2021 $0.0917 100% final (Form 8937) Form 8937
May 28, 2021 May 13, 2021 $0.0917 100% final (Form 8937) Form 8937
Apr 30, 2021 Apr 15, 2021 $0.0917 100% final (Form 8937) Form 8937
Mar 31, 2021 Mar 16, 2021 $0.0917 100% final (Form 8937) Form 8937
Feb 26, 2021 Feb 10, 2021 $0.0917 100% final (Form 8937) Form 8937
Jan 29, 2021 Jan 14, 2021 $0.0917 100% final (Form 8937) Form 8937
Dec 31, 2020 Dec 16, 2020 $0.0917 0% estimated (19a-1) 19a-1
Nov 30, 2020 Nov 12, 2020 $0.0917 52% estimated (19a-1) 19a-1
Oct 30, 2020 Oct 15, 2020 $0.0917 49% estimated (19a-1) 19a-1
Sep 30, 2020 Sep 15, 2020 $0.0917 77% estimated (19a-1) 19a-1
Aug 31, 2020 Aug 13, 2020 $0.0917 32% estimated (19a-1) 19a-1
Jul 31, 2020 Jul 16, 2020 $0.0917 48% estimated (19a-1) 19a-1
Jun 30, 2020 Jun 15, 2020 $0.0917 100% final (Form 8937) Form 8937
May 29, 2020 May 14, 2020 $0.0917 100% final (Form 8937) Form 8937
Apr 30, 2020 Apr 15, 2020 $0.0917 100% final (Form 8937) Form 8937
Mar 31, 2020 Mar 16, 2020 $0.0917 100% final (Form 8937) Form 8937
Feb 28, 2020 Feb 13, 2020 $0.0917 100% final (Form 8937) Form 8937
Jan 31, 2020 Jan 16, 2020 $0.0917 100% final (Form 8937) Form 8937
Dec 31, 2019 Dec 11, 2019 $0.0917 0% estimated (19a-1) 19a-1
Nov 29, 2019 Nov 13, 2019 $0.0917 74% estimated (19a-1) 19a-1
Oct 31, 2019 Oct 16, 2019 $0.0917 100% estimated (19a-1) 19a-1
Sep 30, 2019 Sep 11, 2019 $0.0917 0% estimated (19a-1) 19a-1

Fund facts

Issuer
RiverNorth Capital Management
Exchange
NYSE
Pays
Monthly
Inception
Jul 25, 2019
Net assets
$271M
Price
$12.54 · Sep 30, 2026
CUSIP
76882H105

Issuer documents

Latest 19a-1 notices

Form 8937 (final return of capital)

Data from RiverNorth Capital Management’s public disclosures, updated Oct 1, 2026, 11:28 AM ET. Not investment or tax advice.