FLMB vs. ACTHX

Last updated Jun 23, 2026

FLMB (Franklin Liberty Federal Tax-Free Bond ETF) and ACTHX (Invesco High Yield Municipal Fund) are both funds - FLMB is a Municipal Bonds fund actively managed by Franklin Templeton, while ACTHX is a High Yield Muni fund managed by Invesco. Over the past 5 years, FLMB returned 0.69%/yr vs 0.61%/yr for ACTHX. A 0.64 correlation means they provide meaningful diversification when combined. FLMB charges 0.30%/yr vs 1.39%/yr for ACTHX.

Performance

FLMB vs. ACTHX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Franklin Liberty Federal Tax-Free Bond ETF (FLMB) and Invesco High Yield Municipal Fund (ACTHX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FLMB achieves a 2.21% return, which is significantly lower than ACTHX's 2.88% return.

FLMB

• 1D: 0.00%
• 1M: 1.76%
• YTD: 2.21%
• 6M: 2.60%
• 1Y: 7.99%
• 3Y*: 4.13%
• 5Y*: 0.69%
• 10Y*: —

ACTHX

• 1D: 0.12%
• 1M: 2.16%
• YTD: 2.88%
• 6M: 3.34%
• 1Y: 8.01%
• 3Y*: 4.69%
• 5Y*: 0.61%
• 10Y*: 2.72%

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

FLMB vs. ACTHX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FLMB Franklin Liberty Federal Tax-Free Bond ETF	2.21%	3.93%	2.47%	7.72%	-12.16%	0.80%	7.39%	8.90%	0.43%	0.63%
ACTHX Invesco High Yield Municipal Fund	2.88%	4.38%	5.54%	4.34%	-13.94%	6.29%	3.25%	10.12%	1.44%	1.87%

Correlation

The correlation between FLMB and ACTHX is 0.65, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.65
Correlation (3Y) Calculated over the trailing 3-year period	0.69
Correlation (5Y) Calculated over the trailing 5-year period	0.72
Correlation (All Time) Calculated using the full available price history since Sep 5, 2017	0.64

The correlation between FLMB and ACTHX has been stable across timeframes, ranging from 0.64 to 0.72 - a consistent structural relationship.

Return for Risk

FLMB vs. ACTHX — Risk / Return Rank

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

FLMB

FLMB Risk / Return Rank: 68
FLMB Sharpe Ratio Rank: 74
FLMB Sortino Ratio Rank: 81
FLMB Omega Ratio Rank: 83
FLMB Calmar Ratio Rank: 51
FLMB Martin Ratio Rank: 52

ACTHX

ACTHX Risk / Return Rank: 65
ACTHX Sharpe Ratio Rank: 63
ACTHX Sortino Ratio Rank: 81
ACTHX Omega Ratio Rank: 83
ACTHX Calmar Ratio Rank: 55
ACTHX Martin Ratio Rank: 44

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.

FLMB vs. ACTHX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Franklin Liberty Federal Tax-Free Bond ETF (FLMB) and Invesco High Yield Municipal Fund (ACTHX). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	FLMB	ACTHX	Difference
Sharpe ratio: Return per unit of total volatility	2.28	2.14	+0.14
Sortino ratio: Return per unit of downside risk	3.42	3.53	-0.11
Omega ratio: Gain probability vs. loss probability	1.48	1.51	-0.04
Calmar ratio: Return relative to maximum drawdown	2.47	2.71	-0.24
Martin ratio: Return relative to average drawdown	8.74	8.84	-0.10

FLMB vs. ACTHX - Sharpe Ratio Comparison

The current FLMB Sharpe Ratio is 2.28, which is comparable to the ACTHX Sharpe Ratio of 2.14. The chart below compares the historical Sharpe Ratios of FLMB and ACTHX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

FLMB vs. ACTHX - Drawdown Comparison

The maximum FLMB drawdown since its inception was -17.90%, smaller than the maximum ACTHX drawdown of -27.29%. Use the drawdown chart below to compare losses from any high point for FLMB and ACTHX.

Drawdown Indicators

	FLMB	ACTHX	Difference
Max Drawdown Largest peak-to-trough decline	-17.90%	-27.29%	+9.39%
Max Drawdown (1Y) Largest decline over 1 year	-3.25%	-2.98%	-0.27%
Max Drawdown (3Y) Largest decline over 3 years	-7.33%	-10.13%	+2.80%
Max Drawdown (5Y) Largest decline over 5 years	-17.90%	-19.83%	+1.93%
Max Drawdown (10Y) Largest decline over 10 years	—	-19.83%	—
Current Drawdown Current decline from peak	-0.15%	0.00%	-0.15%
Average Drawdown Average peak-to-trough decline	-4.14%	-3.55%	-0.59%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.92%	0.91%	+0.01%

Volatility

FLMB vs. ACTHX - Volatility Comparison

The current volatility for Franklin Liberty Federal Tax-Free Bond ETF (FLMB) is 0.81%, while Invesco High Yield Municipal Fund (ACTHX) has a volatility of 1.01%. This indicates that FLMB experiences smaller price fluctuations and is considered to be less risky than ACTHX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FLMB	ACTHX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.81%	1.01%	-0.20%
Volatility (6M) Calculated over the trailing 6-month period	2.48%	2.68%	-0.20%
Volatility (1Y) Calculated over the trailing 1-year period	3.53%	3.78%	-0.25%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.11%	5.72%	-0.61%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.56%	5.39%	+0.17%

FLMB vs. ACTHX - Expense Ratio Comparison

FLMB has a 0.30% expense ratio, which is lower than ACTHX's 1.39% expense ratio.

Dividends

FLMB vs. ACTHX - Dividend Comparison

FLMB's dividend yield for the trailing twelve months is around 3.73%, less than ACTHX's 5.32% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ACTHX Invesco High Yield Municipal Fund	5.32%	7.14%	5.64%	4.22%	4.72%	3.95%	4.33%	4.70%	4.78%	4.71%	5.11%	4.93%
FLMB Franklin Liberty Federal Tax-Free Bond ETF	3.73%	3.86%	3.79%	3.49%	2.80%	1.66%	2.07%	2.40%	2.68%	0.54%	0.00%	0.00%

Frequently Asked Questions

Can I hold both FLMB and ACTHX in my portfolio?

FLMB and ACTHX have a correlation of 0.65, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FLMB or ACTHX?

ACTHX has higher volatility (1.01%) compared to FLMB (0.81%). In terms of maximum drawdown, FLMB dropped -17.90% vs ACTHX's -27.29%.

Which has better risk-adjusted returns?

FLMB currently has the higher Sharpe Ratio (2.28 vs 2.14), 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.