SDHIX vs. AMHIX

Last updated Jun 3, 2026

SDHIX (Lord Abbett Short Duration High Income Municipal Bond Fund) and AMHIX (American High-Income Municipal Bond Fund) are both High Yield Muni funds. Over the past 10 years, SDHIX returned 2.06%/yr vs 3.27%/yr for AMHIX. A 0.79 correlation means they provide meaningful diversification when combined. SDHIX charges 0.50%/yr vs 0.63%/yr for AMHIX.

Performance

SDHIX vs. AMHIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Lord Abbett Short Duration High Income Municipal Bond Fund (SDHIX) and American High-Income Municipal Bond Fund (AMHIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SDHIX achieves a 1.70% return, which is significantly lower than AMHIX's 2.03% return. Over the past 10 years, SDHIX has underperformed AMHIX with an annualized return of 2.06%, while AMHIX has yielded a comparatively higher 3.27% annualized return.

SDHIX

• 1D: 0.00%
• 1M: 0.57%
• YTD: 1.70%
• 6M: 2.15%
• 1Y: 5.88%
• 3Y*: 4.98%
• 5Y*: 1.31%
• 10Y*: 2.06%

AMHIX

• 1D: 0.00%
• 1M: 0.65%
• YTD: 2.03%
• 6M: 2.58%
• 1Y: 8.10%
• 3Y*: 6.06%
• 5Y*: 1.70%
• 10Y*: 3.27%

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

SDHIX vs. AMHIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SDHIX Lord Abbett Short Duration High Income Municipal Bond Fund	1.70%	5.24%	5.38%	3.71%	-9.77%	3.85%	2.37%	7.27%	2.33%	3.72%
AMHIX American High-Income Municipal Bond Fund	2.03%	5.70%	6.19%	7.18%	-12.59%	5.28%	4.39%	8.88%	1.59%	8.89%

Correlation

The correlation between SDHIX and AMHIX is 0.79, 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	0.79
Correlation (3Y) Calculated over the trailing 3-year period	0.84
Correlation (5Y) Calculated over the trailing 5-year period	0.86
Correlation (10Y) Calculated over the trailing 10-year period	0.80
Correlation (All Time) Calculated using the full available price history since Jan 5, 2016	0.79

The correlation between SDHIX and AMHIX has been stable across timeframes, ranging from 0.79 to 0.86 - a consistent structural relationship.

Return for Risk

SDHIX vs. AMHIX — Risk / Return Rank

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

SDHIX

SDHIX Risk / Return Rank: 78
SDHIX Sharpe Ratio Rank: 86
SDHIX Sortino Ratio Rank: 96
SDHIX Omega Ratio Rank: 95
SDHIX Calmar Ratio Rank: 58
SDHIX Martin Ratio Rank: 55

AMHIX

AMHIX Risk / Return Rank: 73
AMHIX Sharpe Ratio Rank: 79
AMHIX Sortino Ratio Rank: 87
AMHIX Omega Ratio Rank: 88
AMHIX Calmar Ratio Rank: 58
AMHIX Martin Ratio Rank: 50

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.

SDHIX vs. AMHIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Lord Abbett Short Duration High Income Municipal Bond Fund (SDHIX) and American High-Income Municipal Bond Fund (AMHIX). 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.

	SDHIX	AMHIX	Difference
Sharpe ratio Return per unit of total volatility	2.77	2.59	+0.18
Sortino ratio Return per unit of downside risk	5.25	4.19	+1.07
Omega ratio Gain probability vs. loss probability	1.81	1.61	+0.20
Calmar ratio Return relative to maximum drawdown	2.94	2.94	0.00
Martin ratio Return relative to average drawdown	11.15	10.43	+0.72
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SDHIX vs. AMHIX - Sharpe Ratio Comparison

The current SDHIX Sharpe Ratio is 2.77, which is comparable to the AMHIX Sharpe Ratio of 2.59. The chart below compares the historical Sharpe Ratios of SDHIX and AMHIX, 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

	SDHIX	AMHIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.77	2.59	+0.18
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.47	0.35	+0.12
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.68	0.73	-0.04
Sharpe Ratio (All Time) Calculated using the full available price history	0.71	1.40	-0.70

Drawdowns

SDHIX vs. AMHIX - Drawdown Comparison

The maximum SDHIX drawdown since its inception was -13.36%, smaller than the maximum AMHIX drawdown of -21.74%. Use the drawdown chart below to compare losses from any high point for SDHIX and AMHIX.

Drawdown Indicators

	SDHIX	AMHIX	Difference
Max Drawdown Largest peak-to-trough decline	-13.36%	-21.74%	+8.38%
Max Drawdown (1Y) Largest decline over 1 year	-2.08%	-2.76%	+0.68%
Max Drawdown (3Y) Largest decline over 3 years	-3.34%	-6.25%	+2.91%
Max Drawdown (5Y) Largest decline over 5 years	-13.36%	-17.81%	+4.45%
Max Drawdown (10Y) Largest decline over 10 years	-13.36%	-17.81%	+4.45%
Current Drawdown Current decline from peak	-0.02%	-0.21%	+0.19%
Average Drawdown Average peak-to-trough decline	-2.98%	-2.12%	-0.86%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.55%	0.78%	-0.23%

Volatility

SDHIX vs. AMHIX - Volatility Comparison

The current volatility for Lord Abbett Short Duration High Income Municipal Bond Fund (SDHIX) is 0.72%, while American High-Income Municipal Bond Fund (AMHIX) has a volatility of 1.09%. This indicates that SDHIX experiences smaller price fluctuations and is considered to be less risky than AMHIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SDHIX	AMHIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.72%	1.09%	-0.37%
Volatility (6M) Calculated over the trailing 6-month period	1.55%	2.21%	-0.66%
Volatility (1Y) Calculated over the trailing 1-year period	2.08%	3.03%	-0.95%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.81%	4.84%	-2.03%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.02%	4.53%	-1.51%

SDHIX vs. AMHIX - Expense Ratio Comparison

SDHIX has a 0.50% expense ratio, which is lower than AMHIX's 0.63% expense ratio.

Dividends

SDHIX vs. AMHIX - Dividend Comparison

SDHIX's dividend yield for the trailing twelve months is around 4.36%, more than AMHIX's 3.89% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AMHIX American High-Income Municipal Bond Fund	3.89%	5.26%	3.80%	3.10%	2.53%	3.23%	3.40%	3.46%	3.67%	4.01%	3.55%	4.03%
SDHIX Lord Abbett Short Duration High Income Municipal Bond Fund	4.36%	5.00%	4.17%	3.28%	2.21%	1.68%	2.84%	3.00%	2.97%	1.19%	0.00%	0.00%

Frequently Asked Questions

Can I hold both SDHIX and AMHIX in my portfolio?

SDHIX and AMHIX have a correlation of 0.79, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SDHIX or AMHIX?

AMHIX has higher volatility (1.09%) compared to SDHIX (0.72%). In terms of maximum drawdown, SDHIX dropped -13.36% vs AMHIX's -21.74%.

Which has better risk-adjusted returns?

SDHIX currently has the higher Sharpe Ratio (2.77 vs 2.59), 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.