RFM vs. RMMZ

Last updated Apr 1, 2026

Compare and contrast key facts about RiverNorth Flexible Municipal Income Fund (RFM) and RiverNorth Managed Duration Municipal Income Fund II Inc. (RMMZ).

RFM is managed by RiverNorth. RMMZ is managed by RiverNorth.

Performance

RFM vs. RMMZ - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in RiverNorth Flexible Municipal Income Fund (RFM) and RiverNorth Managed Duration Municipal Income Fund II Inc. (RMMZ). The values are adjusted to include any dividend payments, if applicable.

RFM vs. RMMZ - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
RFM RiverNorth Flexible Municipal Income Fund	2.29%	1.59%	3.24%	6.50%	-16.07%
RMMZ RiverNorth Managed Duration Municipal Income Fund II Inc.	3.01%	4.99%	2.72%	11.22%	-12.90%

Returns By Period

In the year-to-date period, RFM achieves a 2.29% return, which is significantly lower than RMMZ's 3.01% return.

RFM

• 1D: 2.04%
• 1M: -3.44%
• YTD: 2.29%
• 6M: 0.79%
• 1Y: 2.63%
• 3Y*: 4.32%
• 5Y*: -1.10%
• 10Y*: —

RMMZ

• 1D: 0.00%
• 1M: -1.11%
• YTD: 3.01%
• 6M: 1.64%
• 1Y: 4.20%
• 3Y*: 6.91%
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

RFM vs. RMMZ - Expense Ratio Comparison

RFM

RiverNorth Flexible Municipal Income Fund

Return for Risk

RFM vs. RMMZ — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

RFM

RFM Risk / Return Rank: 9
RFM Sharpe Ratio Rank: 9
RFM Sortino Ratio Rank: 8
RFM Omega Ratio Rank: 8
RFM Calmar Ratio Rank: 11
RFM Martin Ratio Rank: 10

RMMZ

RMMZ Risk / Return Rank: 13
RMMZ Sharpe Ratio Rank: 13
RMMZ Sortino Ratio Rank: 12
RMMZ Omega Ratio Rank: 11
RMMZ Calmar Ratio Rank: 15
RMMZ Martin Ratio Rank: 12

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

RFM vs. RMMZ - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for RiverNorth Flexible Municipal Income Fund (RFM) and RiverNorth Managed Duration Municipal Income Fund II Inc. (RMMZ). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	RFM	RMMZ	Difference
Sharpe ratio Return per unit of total volatility	0.25	0.38	-0.13
Sortino ratio Return per unit of downside risk	0.39	0.62	-0.23
Omega ratio Gain probability vs. loss probability	1.06	1.08	-0.02
Calmar ratio Return relative to maximum drawdown	0.26	0.46	-0.20
Martin ratio Return relative to average drawdown	0.69	1.06	-0.37
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

RFM vs. RMMZ - Sharpe Ratio Comparison

The current RFM Sharpe Ratio is 0.25, which is lower than the RMMZ Sharpe Ratio of 0.38. The chart below compares the historical Sharpe Ratios of RFM and RMMZ, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	RFM	RMMZ	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.25	0.38	-0.13
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.09	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.16	0.10	+0.06

Correlation

The correlation between RFM and RMMZ is 0.42, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

RFM vs. RMMZ - Dividend Comparison

RFM's dividend yield for the trailing twelve months is around 7.91%, more than RMMZ's 7.65% yield.

	TTM	2025	2024	2023	2022	2021	2020
RFM RiverNorth Flexible Municipal Income Fund	7.91%	8.07%	7.70%	7.64%	8.38%	10.49%	5.07%
RMMZ RiverNorth Managed Duration Municipal Income Fund II Inc.	7.65%	7.86%	7.82%	7.45%	6.86%	0.00%	0.00%

Drawdowns

RFM vs. RMMZ - Drawdown Comparison

The maximum RFM drawdown since its inception was -35.49%, which is greater than RMMZ's maximum drawdown of -27.15%. Use the drawdown chart below to compare losses from any high point for RFM and RMMZ.

Drawdown Indicators

	RFM	RMMZ	Difference
Max Drawdown Largest peak-to-trough decline	-35.49%	-27.15%	-8.34%
Max Drawdown (1Y) Largest decline over 1 year	-8.80%	-8.45%	-0.35%
Max Drawdown (5Y) Largest decline over 5 years	-35.49%	—	—
Current Drawdown Current decline from peak	-16.02%	-2.19%	-13.83%
Average Drawdown Average peak-to-trough decline	-14.77%	-10.03%	-4.74%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.36%	3.68%	-0.32%

Volatility

RFM vs. RMMZ - Volatility Comparison

The current volatility for RiverNorth Flexible Municipal Income Fund (RFM) is 4.28%, while RiverNorth Managed Duration Municipal Income Fund II Inc. (RMMZ) has a volatility of 4.93%. This indicates that RFM experiences smaller price fluctuations and is considered to be less risky than RMMZ based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RFM	RMMZ	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.28%	4.93%	-0.65%
Volatility (6M) Calculated over the trailing 6-month period	6.89%	7.76%	-0.87%
Volatility (1Y) Calculated over the trailing 1-year period	10.58%	11.02%	-0.44%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.85%	17.68%	-4.83%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	12.75%	17.68%	-4.93%