RMM vs. PFLD

Last updated Jun 5, 2026

RMM (Rivernorth Managed Duration Municipal Income Fund Inc.) is a stock, while PFLD (AAM Low Duration Preferred and Income Securities ETF 144A) is Preferred Stock/Convertible Bonds fund tracking the ICE 0-5 Year Duration Exchange-Listed Preferred & Hybrid Securities Index. Over the past 5 years, RMM returned 0.24%/yr vs 1.02%/yr for PFLD. At a 0.28 correlation, their price movements are largely independent.

Performance

RMM vs. PFLD - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Rivernorth Managed Duration Municipal Income Fund Inc. (RMM) and AAM Low Duration Preferred and Income Securities ETF 144A (PFLD). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RMM achieves a 9.26% return, which is significantly higher than PFLD's 2.58% return.

RMM

• 1D: -0.82%
• 1M: 2.00%
• YTD: 9.26%
• 6M: 7.30%
• 1Y: 14.29%
• 3Y*: 5.07%
• 5Y*: 0.24%
• 10Y*: —

PFLD

• 1D: -0.10%
• 1M: 0.43%
• YTD: 2.58%
• 6M: 3.06%
• 1Y: 5.71%
• 3Y*: 5.03%
• 5Y*: 1.02%
• 10Y*: —

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

RMM vs. PFLD - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
RMM Rivernorth Managed Duration Municipal Income Fund Inc.	9.26%	2.01%	9.25%	5.93%	-23.45%	19.66%	-2.15%	-2.11%
PFLD AAM Low Duration Preferred and Income Securities ETF 144A	2.58%	1.44%	5.48%	8.16%	-12.73%	4.49%	5.34%	1.04%

Correlation

The correlation between RMM and PFLD is 0.07, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.07
Correlation (3Y) Calculated over the trailing 3-year period	0.24
Correlation (5Y) Calculated over the trailing 5-year period	0.28
Correlation (All Time) Calculated using the full available price history since Nov 21, 2019	0.28

Over the past year, the correlation between RMM and PFLD has dropped to 0.07 - well below their long-term average of 0.28, suggesting their price drivers have been diverging.

Return for Risk

RMM vs. PFLD — Risk / Return Rank

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

RMM

RMM Risk / Return Rank: 76
RMM Sharpe Ratio Rank: 78
RMM Sortino Ratio Rank: 76
RMM Omega Ratio Rank: 72
RMM Calmar Ratio Rank: 72
RMM Martin Ratio Rank: 79

PFLD

PFLD Risk / Return Rank: 55
PFLD Sharpe Ratio Rank: 50
PFLD Sortino Ratio Rank: 59
PFLD Omega Ratio Rank: 52
PFLD Calmar Ratio Rank: 53
PFLD Martin Ratio Rank: 64

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.

RMM vs. PFLD - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Rivernorth Managed Duration Municipal Income Fund Inc. (RMM) and AAM Low Duration Preferred and Income Securities ETF 144A (PFLD). 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.

	RMM	PFLD	Difference
Sharpe ratio: Return per unit of total volatility	1.31	1.70	-0.39
Sortino ratio: Return per unit of downside risk	2.07	2.76	-0.68
Omega ratio: Gain probability vs. loss probability	1.24	1.32	-0.08
Calmar ratio: Return relative to maximum drawdown	1.82	2.57	-0.75
Martin ratio: Return relative to average drawdown	6.34	11.38	-5.04
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

RMM vs. PFLD - Sharpe Ratio Comparison

The current RMM Sharpe Ratio is 1.31, which is comparable to the PFLD Sharpe Ratio of 1.70. The chart below compares the historical Sharpe Ratios of RMM and PFLD, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	RMM	PFLD	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.31	1.70	-0.39
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.02	0.14	-0.12
Sharpe Ratio (All Time) Calculated using the full available price history	0.11	0.16	-0.06

Drawdowns

RMM vs. PFLD - Drawdown Comparison

The maximum RMM drawdown since its inception was -35.99%, which is greater than PFLD's maximum drawdown of -33.20%. Use the drawdown chart below to compare losses from any high point for RMM and PFLD.

Drawdown Indicators

	RMM	PFLD	Difference
Max Drawdown Largest peak-to-trough decline	-35.99%	-33.20%	-2.79%
Max Drawdown (1Y) Largest decline over 1 year	-7.90%	-2.23%	-5.67%
Max Drawdown (3Y) Largest decline over 3 years	-20.16%	-6.41%	-13.75%
Max Drawdown (5Y) Largest decline over 5 years	-33.29%	-15.51%	-17.78%
Current Drawdown Current decline from peak	-6.07%	-0.10%	-5.97%
Average Drawdown Average peak-to-trough decline	-13.79%	-4.17%	-9.62%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.26%	0.50%	+1.76%

Volatility

RMM vs. PFLD - Volatility Comparison

Rivernorth Managed Duration Municipal Income Fund Inc. (RMM) has a higher volatility of 3.95% compared to AAM Low Duration Preferred and Income Securities ETF 144A (PFLD) at 0.83%. This indicates that RMM's price experiences larger fluctuations and is considered to be riskier than PFLD based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RMM	PFLD	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.95%	0.83%	+3.12%
Volatility (6M) Calculated over the trailing 6-month period	9.20%	2.26%	+6.94%
Volatility (1Y) Calculated over the trailing 1-year period	10.98%	3.40%	+7.58%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.48%	7.50%	+6.98%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.89%	13.37%	+4.52%

Dividends

RMM vs. PFLD - Dividend Comparison

RMM's dividend yield for the trailing twelve months is around 7.32%, more than PFLD's 5.60% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019
PFLD AAM Low Duration Preferred and Income Securities ETF 144A	5.60%	6.52%	7.09%	7.09%	5.76%	4.52%	4.79%	0.82%
RMM Rivernorth Managed Duration Municipal Income Fund Inc.	7.32%	7.98%	7.63%	7.71%	7.74%	5.46%	6.18%	1.90%

Frequently Asked Questions

Can I hold both RMM and PFLD in my portfolio?

RMM and PFLD have a correlation of 0.07, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RMM or PFLD?

RMM has higher volatility (3.95%) compared to PFLD (0.83%). In terms of maximum drawdown, RMM dropped -35.99% vs PFLD's -33.20%.

Which has better risk-adjusted returns?

PFLD currently has the higher Sharpe Ratio (1.70 vs 1.31), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.