FDUAX vs. MISHX

Last updated Jun 4, 2026

FDUAX (First Eagle Short Duration High Yield Municipal Fund Class A) and MISHX (AB Municipal Income Shares) are both High Yield Muni funds. Over the past year, FDUAX returned 2.49% vs 8.27% for MISHX. A 0.73 correlation means they provide meaningful diversification when combined. FDUAX charges 0.87%/yr vs 0.00%/yr for MISHX.

Performance

FDUAX vs. MISHX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in First Eagle Short Duration High Yield Municipal Fund Class A (FDUAX) and AB Municipal Income Shares (MISHX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FDUAX achieves a 1.83% return, which is significantly lower than MISHX's 2.13% return.

FDUAX

• 1D: 0.20%
• 1M: 0.96%
• YTD: 1.83%
• 6M: 2.08%
• 1Y: 2.49%
• 3Y*: —
• 5Y*: —
• 10Y*: —

MISHX

• 1D: 0.27%
• 1M: 0.96%
• YTD: 2.13%
• 6M: 2.54%
• 1Y: 8.27%
• 3Y*: 5.91%
• 5Y*: 1.63%
• 10Y*: 3.68%

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

FDUAX vs. MISHX - Yearly Performance Comparison

	2026 (YTD)	2025	2024
FDUAX First Eagle Short Duration High Yield Municipal Fund Class A	1.83%	1.20%	6.66%
MISHX AB Municipal Income Shares	2.13%	6.41%	5.96%

Correlation

The correlation between FDUAX and MISHX is 0.60, 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	0.60
Correlation (All Time) Calculated using the full available price history since Jan 18, 2024	0.73

The correlation between FDUAX and MISHX shifts across timeframes, from 0.60 (1 year) to 0.73 (all time), reflecting how their relationship changes across market environments.

Return for Risk

FDUAX vs. MISHX — Risk / Return Rank

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

FDUAX

FDUAX Risk / Return Rank: 10
FDUAX Sharpe Ratio Rank: 10
FDUAX Sortino Ratio Rank: 9
FDUAX Omega Ratio Rank: 15
FDUAX Calmar Ratio Rank: 8
FDUAX Martin Ratio Rank: 8

MISHX

MISHX Risk / Return Rank: 69
MISHX Sharpe Ratio Rank: 76
MISHX Sortino Ratio Rank: 87
MISHX Omega Ratio Rank: 89
MISHX Calmar Ratio Rank: 50
MISHX Martin Ratio Rank: 46

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.

FDUAX vs. MISHX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for First Eagle Short Duration High Yield Municipal Fund Class A (FDUAX) and AB Municipal Income Shares (MISHX). 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.

	FDUAX	MISHX	Difference
Sharpe ratio: Return per unit of total volatility	0.78	2.52	-1.74
Sortino ratio: Return per unit of downside risk	1.09	4.11	-3.03
Omega ratio: Gain probability vs. loss probability	1.20	1.64	-0.44
Calmar ratio: Return relative to maximum drawdown	0.73	2.69	-1.96
Martin ratio: Return relative to average drawdown	2.26	9.57	-7.30
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FDUAX vs. MISHX - Sharpe Ratio Comparison

The current FDUAX Sharpe Ratio is 0.78, which is lower than the MISHX Sharpe Ratio of 2.52. The chart below compares the historical Sharpe Ratios of FDUAX and MISHX, 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

	FDUAX	MISHX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.78	2.52	-1.74
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.33	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.71	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.25	0.93	+0.32

Drawdowns

FDUAX vs. MISHX - Drawdown Comparison

The maximum FDUAX drawdown since its inception was -3.96%, smaller than the maximum MISHX drawdown of -19.03%. Use the drawdown chart below to compare losses from any high point for FDUAX and MISHX.

Drawdown Indicators

	FDUAX	MISHX	Difference
Max Drawdown Largest peak-to-trough decline	-3.96%	-19.03%	+15.07%
Max Drawdown (1Y) Largest decline over 1 year	-3.43%	-3.09%	-0.34%
Max Drawdown (3Y) Largest decline over 3 years	—	-7.89%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-18.20%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-19.03%	—
Current Drawdown Current decline from peak	0.00%	-0.12%	+0.12%
Average Drawdown Average peak-to-trough decline	-0.72%	-3.41%	+2.69%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.10%	0.87%	+0.23%

Volatility

FDUAX vs. MISHX - Volatility Comparison

The current volatility for First Eagle Short Duration High Yield Municipal Fund Class A (FDUAX) is 0.81%, while AB Municipal Income Shares (MISHX) has a volatility of 1.34%. This indicates that FDUAX experiences smaller price fluctuations and is considered to be less risky than MISHX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FDUAX	MISHX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.81%	1.34%	-0.53%
Volatility (6M) Calculated over the trailing 6-month period	1.80%	2.48%	-0.68%
Volatility (1Y) Calculated over the trailing 1-year period	3.19%	3.32%	-0.13%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.27%	5.00%	-1.73%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.27%	5.19%	-1.92%

FDUAX vs. MISHX - Expense Ratio Comparison

FDUAX has a 0.87% expense ratio, which is higher than MISHX's 0.00% expense ratio.

Dividends

FDUAX vs. MISHX - Dividend Comparison

FDUAX's dividend yield for the trailing twelve months is around 5.18%, more than MISHX's 4.81% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FDUAX First Eagle Short Duration High Yield Municipal Fund Class A	5.18%	4.83%	3.84%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
MISHX AB Municipal Income Shares	4.81%	6.23%	4.80%	3.23%	3.75%	2.77%	3.56%	3.98%	3.77%	3.78%	4.25%	4.38%

Frequently Asked Questions

Can I hold both FDUAX and MISHX in my portfolio?

FDUAX and MISHX have a correlation of 0.60, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FDUAX or MISHX?

MISHX has higher volatility (1.34%) compared to FDUAX (0.81%). In terms of maximum drawdown, FDUAX dropped -3.96% vs MISHX's -19.03%.

Which has better risk-adjusted returns?

MISHX currently has the higher Sharpe Ratio (2.52 vs 0.78), 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.