RFM vs. HIMFX

Last updated Apr 1, 2026

Compare and contrast key facts about RiverNorth Flexible Municipal Income Fund (RFM) and American High-Income Municipal Bond Fund Class F-3 (HIMFX).

RFM is managed by RiverNorth. HIMFX is an actively managed fund by Capital Group. It was launched on Jan 27, 2017.

Performance

RFM vs. HIMFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in RiverNorth Flexible Municipal Income Fund (RFM) and American High-Income Municipal Bond Fund Class F-3 (HIMFX). The values are adjusted to include any dividend payments, if applicable.

RFM vs. HIMFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
RFM RiverNorth Flexible Municipal Income Fund	2.29%	1.59%	3.24%	6.50%	-22.85%	10.85%	15.33%
HIMFX American High-Income Municipal Bond Fund Class F-3	-0.45%	4.69%	6.23%	7.89%	-12.36%	5.60%	9.33%

Returns By Period

In the year-to-date period, RFM achieves a 2.29% return, which is significantly higher than HIMFX's -0.45% return.

RFM

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

HIMFX

• 1D: 0.07%
• 1M: -2.70%
• YTD: -0.45%
• 6M: 1.33%
• 1Y: 3.90%
• 3Y*: 5.19%
• 5Y*: 1.71%
• 10Y*: —

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

RFM vs. HIMFX - Expense Ratio Comparison

RFM has a 5.15% expense ratio, which is higher than HIMFX's 0.31% expense ratio.

RFM

RiverNorth Flexible Municipal Income Fund

HIMFX

American High-Income Municipal Bond Fund Class F-3

Return for Risk

RFM vs. HIMFX — 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

HIMFX

HIMFX Risk / Return Rank: 32
HIMFX Sharpe Ratio Rank: 29
HIMFX Sortino Ratio Rank: 24
HIMFX Omega Ratio Rank: 52
HIMFX Calmar Ratio Rank: 31
HIMFX Martin Ratio Rank: 24

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. HIMFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for RiverNorth Flexible Municipal Income Fund (RFM) and American High-Income Municipal Bond Fund Class F-3 (HIMFX). 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	HIMFX	Difference
Sharpe ratio Return per unit of total volatility	0.25	0.72	-0.47
Sortino ratio Return per unit of downside risk	0.39	0.97	-0.58
Omega ratio Gain probability vs. loss probability	1.06	1.21	-0.16
Calmar ratio Return relative to maximum drawdown	0.26	0.87	-0.61
Martin ratio Return relative to average drawdown	0.69	2.64	-1.95
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. HIMFX - Sharpe Ratio Comparison

The current RFM Sharpe Ratio is 0.25, which is lower than the HIMFX Sharpe Ratio of 0.72. The chart below compares the historical Sharpe Ratios of RFM and HIMFX, 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	HIMFX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.25	0.72	-0.47
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.09	0.36	-0.44
Sharpe Ratio (All Time) Calculated using the full available price history	0.16	0.80	-0.64

Correlation

The correlation between RFM and HIMFX is 0.29, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

RFM vs. HIMFX - Dividend Comparison

RFM's dividend yield for the trailing twelve months is around 7.91%, more than HIMFX's 4.00% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
RFM RiverNorth Flexible Municipal Income Fund	7.91%	8.07%	7.70%	7.64%	8.38%	10.49%	5.07%	0.00%	0.00%	0.00%
HIMFX American High-Income Municipal Bond Fund Class F-3	4.00%	4.32%	3.83%	3.71%	2.80%	3.54%	3.73%	3.49%	3.99%	3.61%

Drawdowns

RFM vs. HIMFX - Drawdown Comparison

The maximum RFM drawdown since its inception was -35.49%, which is greater than HIMFX's maximum drawdown of -17.57%. Use the drawdown chart below to compare losses from any high point for RFM and HIMFX.

Drawdown Indicators

	RFM	HIMFX	Difference
Max Drawdown Largest peak-to-trough decline	-35.49%	-17.57%	-17.92%
Max Drawdown (1Y) Largest decline over 1 year	-8.80%	-5.60%	-3.20%
Max Drawdown (5Y) Largest decline over 5 years	-35.49%	-17.57%	-17.92%
Current Drawdown Current decline from peak	-16.02%	-2.70%	-13.32%
Average Drawdown Average peak-to-trough decline	-14.77%	-3.21%	-11.56%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.36%	1.85%	+1.51%

Volatility

RFM vs. HIMFX - Volatility Comparison

RiverNorth Flexible Municipal Income Fund (RFM) has a higher volatility of 4.28% compared to American High-Income Municipal Bond Fund Class F-3 (HIMFX) at 1.08%. This indicates that RFM's price experiences larger fluctuations and is considered to be riskier than HIMFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RFM	HIMFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.28%	1.08%	+3.20%
Volatility (6M) Calculated over the trailing 6-month period	6.89%	1.87%	+5.02%
Volatility (1Y) Calculated over the trailing 1-year period	10.58%	6.36%	+4.22%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.85%	4.78%	+8.07%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	12.75%	4.62%	+8.13%