VMO vs. PFLD

Last updated Jun 4, 2026

VMO (Invesco Municipal Opportunity Trust) 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, VMO returned -1.01%/yr vs 1.04%/yr for PFLD. At a 0.31 correlation, their price movements are largely independent.

Performance

VMO vs. PFLD - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco Municipal Opportunity Trust (VMO) 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, VMO achieves a 4.65% return, which is significantly higher than PFLD's 2.69% return.

VMO

• 1D: -0.61%
• 1M: 2.44%
• YTD: 4.65%
• 6M: 5.55%
• 1Y: 15.04%
• 3Y*: 7.99%
• 5Y*: -1.01%
• 10Y*: 1.79%

PFLD

• 1D: 0.05%
• 1M: 0.74%
• YTD: 2.69%
• 6M: 2.90%
• 1Y: 6.25%
• 3Y*: 4.93%
• 5Y*: 1.04%
• 10Y*: —

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

VMO vs. PFLD - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
VMO Invesco Municipal Opportunity Trust	4.65%	6.57%	7.73%	1.54%	-24.29%	12.95%	8.89%	-0.00%
PFLD AAM Low Duration Preferred and Income Securities ETF 144A	2.69%	1.44%	5.48%	8.16%	-12.73%	4.49%	5.34%	1.04%

Correlation

The correlation between VMO and PFLD is 0.16, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.16
Correlation (3Y) Calculated over the trailing 3-year period	0.34
Correlation (5Y) Calculated over the trailing 5-year period	0.34
Correlation (All Time) Calculated using the full available price history since Nov 21, 2019	0.31

The correlation between VMO and PFLD shifts across timeframes, from 0.16 (1 year) to 0.34 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

VMO vs. PFLD — Risk / Return Rank

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

VMO

VMO Risk / Return Rank: 82
VMO Sharpe Ratio Rank: 84
VMO Sortino Ratio Rank: 83
VMO Omega Ratio Rank: 81
VMO Calmar Ratio Rank: 77
VMO Martin Ratio Rank: 85

PFLD

PFLD Risk / Return Rank: 60
PFLD Sharpe Ratio Rank: 54
PFLD Sortino Ratio Rank: 65
PFLD Omega Ratio Rank: 57
PFLD Calmar Ratio Rank: 57
PFLD Martin Ratio Rank: 68

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.

VMO vs. PFLD - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco Municipal Opportunity Trust (VMO) 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.

	VMO	PFLD	Difference
Sharpe ratio: Return per unit of total volatility	1.71	1.85	-0.14
Sortino ratio: Return per unit of downside risk	2.59	3.01	-0.42
Omega ratio: Gain probability vs. loss probability	1.32	1.35	-0.03
Calmar ratio: Return relative to maximum drawdown	2.29	2.81	-0.52
Martin ratio: Return relative to average drawdown	8.85	12.46	-3.61
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

VMO vs. PFLD - Sharpe Ratio Comparison

The current VMO Sharpe Ratio is 1.71, which is comparable to the PFLD Sharpe Ratio of 1.85. The chart below compares the historical Sharpe Ratios of VMO 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

	VMO	PFLD	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.71	1.85	-0.14
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.09	0.14	-0.23
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.14	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.26	0.17	+0.10

Drawdowns

VMO vs. PFLD - Drawdown Comparison

The maximum VMO drawdown since its inception was -50.11%, which is greater than PFLD's maximum drawdown of -33.20%. Use the drawdown chart below to compare losses from any high point for VMO and PFLD.

Drawdown Indicators

	VMO	PFLD	Difference
Max Drawdown Largest peak-to-trough decline	-50.11%	-33.20%	-16.91%
Max Drawdown (1Y) Largest decline over 1 year	-6.59%	-2.23%	-4.36%
Max Drawdown (3Y) Largest decline over 3 years	-16.51%	-6.41%	-10.10%
Max Drawdown (5Y) Largest decline over 5 years	-37.70%	-15.51%	-22.19%
Max Drawdown (10Y) Largest decline over 10 years	-37.70%	—	—
Current Drawdown Current decline from peak	-8.02%	0.00%	-8.02%
Average Drawdown Average peak-to-trough decline	-9.87%	-4.17%	-5.70%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.70%	0.50%	+1.20%

Volatility

VMO vs. PFLD - Volatility Comparison

Invesco Municipal Opportunity Trust (VMO) has a higher volatility of 3.76% compared to AAM Low Duration Preferred and Income Securities ETF 144A (PFLD) at 0.84%. This indicates that VMO'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

	VMO	PFLD	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.76%	0.84%	+2.92%
Volatility (6M) Calculated over the trailing 6-month period	6.72%	2.26%	+4.46%
Volatility (1Y) Calculated over the trailing 1-year period	8.87%	3.39%	+5.48%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	11.53%	7.50%	+4.03%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	12.67%	13.38%	-0.71%

Dividends

VMO vs. PFLD - Dividend Comparison

VMO's dividend yield for the trailing twelve months is around 7.73%, more than PFLD's 5.60% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
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%	0.00%	0.00%	0.00%	0.00%
VMO Invesco Municipal Opportunity Trust	7.73%	7.84%	6.44%	4.47%	5.69%	4.64%	4.66%	4.94%	5.95%	5.98%	6.73%	6.33%

Frequently Asked Questions

Can I hold both VMO and PFLD in my portfolio?

VMO and PFLD have a correlation of 0.16, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VMO or PFLD?

VMO has higher volatility (3.76%) compared to PFLD (0.84%). In terms of maximum drawdown, VMO dropped -50.11% vs PFLD's -33.20%.

Which has better risk-adjusted returns?

PFLD currently has the higher Sharpe Ratio (1.85 vs 1.71), 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.