CGSM vs. FLMI

Last updated Jun 4, 2026

CGSM (Capital Group Short Duration Municipal Income ETF) and FLMI (Franklin Liberty Federal Intermediate Tax-Free Bond Opportunities ETF) are both Municipal Bonds funds. Both are actively managed. Over the past year, CGSM returned 4.63% vs 8.28% for FLMI. A 0.57 correlation means they provide meaningful diversification when combined. CGSM charges 0.25%/yr vs 0.30%/yr for FLMI.

Performance

CGSM vs. FLMI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Capital Group Short Duration Municipal Income ETF (CGSM) and Franklin Liberty Federal Intermediate Tax-Free Bond Opportunities ETF (FLMI). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CGSM achieves a 1.29% return, which is significantly lower than FLMI's 2.31% return.

CGSM

• 1D: 0.08%
• 1M: 0.38%
• YTD: 1.29%
• 6M: 1.54%
• 1Y: 4.63%
• 3Y*: —
• 5Y*: —
• 10Y*: —

FLMI

• 1D: -0.04%
• 1M: 0.94%
• YTD: 2.31%
• 6M: 2.59%
• 1Y: 8.28%
• 3Y*: 6.02%
• 5Y*: 2.20%
• 10Y*: —

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

CGSM vs. FLMI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
CGSM Capital Group Short Duration Municipal Income ETF	1.29%	4.58%	3.71%	4.04%
FLMI Franklin Liberty Federal Intermediate Tax-Free Bond Opportunities ETF	2.31%	5.89%	4.91%	7.29%

Correlation

The correlation between CGSM and FLMI is 0.53, 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	0.53
Correlation (All Time) Calculated using the full available price history since Sep 29, 2023	0.57

The correlation between CGSM and FLMI has been stable across timeframes, ranging from 0.53 to 0.57 - a consistent structural relationship.

Return for Risk

CGSM vs. FLMI — Risk / Return Rank

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

CGSM

CGSM Risk / Return Rank: 86
CGSM Sharpe Ratio Rank: 93
CGSM Sortino Ratio Rank: 95
CGSM Omega Ratio Rank: 96
CGSM Calmar Ratio Rank: 78
CGSM Martin Ratio Rank: 70

FLMI

FLMI Risk / Return Rank: 75
FLMI Sharpe Ratio Rank: 82
FLMI Sortino Ratio Rank: 88
FLMI Omega Ratio Rank: 91
FLMI Calmar Ratio Rank: 57
FLMI Martin Ratio Rank: 58

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.

CGSM vs. FLMI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Capital Group Short Duration Municipal Income ETF (CGSM) and Franklin Liberty Federal Intermediate Tax-Free Bond Opportunities ETF (FLMI). 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.

	CGSM	FLMI	Difference
Sharpe ratio: Return per unit of total volatility	3.49	2.69	+0.80
Sortino ratio: Return per unit of downside risk	5.39	4.06	+1.33
Omega ratio: Gain probability vs. loss probability	1.81	1.61	+0.20
Calmar ratio: Return relative to maximum drawdown	3.95	2.87	+1.08
Martin ratio: Return relative to average drawdown	12.91	10.34	+2.58
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CGSM vs. FLMI - Sharpe Ratio Comparison

The current CGSM Sharpe Ratio is 3.49, which is comparable to the FLMI Sharpe Ratio of 2.69. The chart below compares the historical Sharpe Ratios of CGSM and FLMI, 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

	CGSM	FLMI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.49	2.69	+0.80
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.50	—
Sharpe Ratio (All Time) Calculated using the full available price history	2.87	0.65	+2.23

Drawdowns

CGSM vs. FLMI - Drawdown Comparison

The maximum CGSM drawdown since its inception was -1.42%, smaller than the maximum FLMI drawdown of -14.66%. Use the drawdown chart below to compare losses from any high point for CGSM and FLMI.

Drawdown Indicators

	CGSM	FLMI	Difference
Max Drawdown Largest peak-to-trough decline	-1.42%	-14.66%	+13.24%
Max Drawdown (1Y) Largest decline over 1 year	-1.18%	-2.90%	+1.72%
Max Drawdown (3Y) Largest decline over 3 years	—	-5.31%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-14.66%	—
Current Drawdown Current decline from peak	-0.22%	-0.33%	+0.11%
Average Drawdown Average peak-to-trough decline	-0.24%	-2.82%	+2.58%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.36%	0.80%	-0.44%

Volatility

CGSM vs. FLMI - Volatility Comparison

The current volatility for Capital Group Short Duration Municipal Income ETF (CGSM) is 0.42%, while Franklin Liberty Federal Intermediate Tax-Free Bond Opportunities ETF (FLMI) has a volatility of 1.00%. This indicates that CGSM experiences smaller price fluctuations and is considered to be less risky than FLMI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CGSM	FLMI	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.42%	1.00%	-0.58%
Volatility (6M) Calculated over the trailing 6-month period	0.98%	2.03%	-1.05%
Volatility (1Y) Calculated over the trailing 1-year period	1.33%	3.09%	-1.76%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.79%	4.45%	-2.66%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.79%	4.72%	-2.93%

CGSM vs. FLMI - Expense Ratio Comparison

CGSM has a 0.25% expense ratio, which is lower than FLMI's 0.30% expense ratio.

Dividends

CGSM vs. FLMI - Dividend Comparison

CGSM's dividend yield for the trailing twelve months is around 3.00%, less than FLMI's 3.87% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
CGSM Capital Group Short Duration Municipal Income ETF	3.00%	3.05%	3.11%	0.84%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
FLMI Franklin Liberty Federal Intermediate Tax-Free Bond Opportunities ETF	3.87%	3.89%	4.08%	3.71%	3.08%	2.22%	2.09%	2.71%	2.41%	0.34%

Frequently Asked Questions

Can I hold both CGSM and FLMI in my portfolio?

CGSM and FLMI have a correlation of 0.53, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CGSM or FLMI?

FLMI has higher volatility (1.00%) compared to CGSM (0.42%). In terms of maximum drawdown, CGSM dropped -1.42% vs FLMI's -14.66%.

Which ETF is better, CGSM or FLMI?

On 1-year performance, FLMI leads with 8.28% vs 4.63% for CGSM. On fees, CGSM is cheaper at 0.25% per year. On volatility, CGSM has been the lower-risk option at 0.42%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, CGSM or FLMI?

Over the 1-year period, FLMI has performed better with a 8.28% return vs 4.63%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, CGSM or FLMI?

CGSM is cheaper with a 0.25% expense ratio, compared with 0.30% for FLMI.

Which ETF pays a higher dividend yield, CGSM or FLMI?

FLMI has the higher dividend yield at 3.87%, compared with 3.00% for CGSM.

What is the main difference between CGSM and FLMI?

They also come from different issuers: Capital Group and Franklin Templeton. Their fees differ too: 0.25% for CGSM and 0.30% for FLMI.

Which has better risk-adjusted returns?

CGSM currently has the higher Sharpe Ratio (3.49 vs 2.69), 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.