MYMI vs. AUSM

Last updated Jul 14, 2026

MYMI (State Street My2029 Municipal Bond ETF) and AUSM (Allspring Ultra Short Municipal ETF) are both Municipal Bonds funds. Both are actively managed. Over the past year, MYMI returned 4.10% vs 2.89% for AUSM. At a 0.07 correlation, their price movements are largely independent. MYMI charges 0.20%/yr vs 0.18%/yr for AUSM.

Performance

MYMI vs. AUSM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street My2029 Municipal Bond ETF (MYMI) and Allspring Ultra Short Municipal ETF (AUSM). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MYMI achieves a 1.51% return, which is significantly higher than AUSM's 1.34% return.

MYMI

• 1D: -0.02%
• 1M: 0.18%
• 6M: 1.06%
• YTD: 1.51%
• 1Y: 4.10%
• 3Y*: —
• 5Y*: —
• 10Y*: —

AUSM

• 1D: 0.00%
• 1M: 0.22%
• 6M: 1.16%
• YTD: 1.34%
• 1Y: 2.89%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

MYMI vs. AUSM - Yearly Performance Comparison

	2026 (YTD)	2025
MYMI State Street My2029 Municipal Bond ETF	1.51%	2.57%
AUSM Allspring Ultra Short Municipal ETF	1.34%	1.58%

Correlation

The correlation between MYMI and AUSM is 0.08, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.08
Correlation (All Time) Calculated using the full available price history since Jul 8, 2025	0.07

Return for Risk

MYMI vs. AUSM — Risk / Return Rank

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

MYMI

MYMI Risk / Return Rank: 85
MYMI Sharpe Ratio Rank: 92
MYMI Sortino Ratio Rank: 94
MYMI Omega Ratio Rank: 96
MYMI Calmar Ratio Rank: 73
MYMI Martin Ratio Rank: 69

AUSM

AUSM Risk / Return Rank: 97
AUSM Sharpe Ratio Rank: 98
AUSM Sortino Ratio Rank: 98
AUSM Omega Ratio Rank: 98
AUSM Calmar Ratio Rank: 96
AUSM Martin Ratio Rank: 94

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.

MYMI vs. AUSM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street My2029 Municipal Bond ETF (MYMI) and Allspring Ultra Short Municipal ETF (AUSM). 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.

	MYMI	AUSM	Difference
Sharpe ratio: Return per unit of total volatility	2.54	3.96	-1.41
Sortino ratio: Return per unit of downside risk	3.97	6.86	-2.89
Omega ratio: Gain probability vs. loss probability	1.62	2.26	-0.64
Calmar ratio: Return relative to maximum drawdown	2.97	6.94	-3.97
Martin ratio: Return relative to average drawdown	9.96	20.53	-10.57

MYMI vs. AUSM - Sharpe Ratio Comparison

The current MYMI Sharpe Ratio is 2.54, which is lower than the AUSM Sharpe Ratio of 3.96. The chart below compares the historical Sharpe Ratios of MYMI and AUSM, 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

MYMI vs. AUSM - Drawdown Comparison

The maximum MYMI drawdown since its inception was -3.11%, which is greater than AUSM's maximum drawdown of -0.42%. Use the drawdown chart below to compare losses from any high point for MYMI and AUSM.

Drawdown Indicators

	MYMI	AUSM	Difference
Max Drawdown Largest peak-to-trough decline	-3.11%	-0.42%	-2.69%
Max Drawdown (1Y) Largest decline over 1 year	-1.39%	-0.42%	-0.97%
Current Drawdown Current decline from peak	-0.20%	-0.00%	-0.20%
Average Drawdown Average peak-to-trough decline	-0.68%	-0.08%	-0.60%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.41%	0.14%	+0.27%

Volatility

MYMI vs. AUSM - Volatility Comparison

State Street My2029 Municipal Bond ETF (MYMI) has a higher volatility of 0.25% compared to Allspring Ultra Short Municipal ETF (AUSM) at 0.13%. This indicates that MYMI's price experiences larger fluctuations and is considered to be riskier than AUSM based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MYMI	AUSM	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.25%	0.13%	+0.12%
Volatility (6M) Calculated over the trailing 6-month period	1.06%	0.45%	+0.61%
Volatility (1Y) Calculated over the trailing 1-year period	1.62%	0.73%	+0.89%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.83%	0.73%	+2.10%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	2.83%	0.73%	+2.10%

MYMI vs. AUSM - Expense Ratio Comparison

MYMI has a 0.20% expense ratio, which is higher than AUSM's 0.18% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

MYMI vs. AUSM - Dividend Comparison

MYMI's dividend yield for the trailing twelve months is around 2.85%, more than AUSM's 2.61% yield.

Position	TTM	2025	2024
AUSM Allspring Ultra Short Municipal ETF	2.61%	1.26%	0.00%
MYMI State Street My2029 Municipal Bond ETF	2.85%	3.00%	0.93%

Frequently Asked Questions

Can I hold both MYMI and AUSM in my portfolio?

MYMI and AUSM have a correlation of 0.08, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MYMI or AUSM?

MYMI has higher volatility (0.25%) compared to AUSM (0.13%). In terms of maximum drawdown, MYMI dropped -3.11% vs AUSM's -0.42%.

Which ETF is better, MYMI or AUSM?

On 1-year performance, MYMI leads with 4.10% vs 2.89% for AUSM. On fees, AUSM is cheaper at 0.18% per year. On volatility, AUSM has been the lower-risk option at 0.13%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, MYMI or AUSM?

Over the 1-year period, MYMI has performed better with a 4.10% return vs 2.89%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, MYMI or AUSM?

AUSM is cheaper with a 0.18% expense ratio, compared with 0.20% for MYMI.

Which ETF pays a higher dividend yield, MYMI or AUSM?

MYMI has the higher dividend yield at 2.85%, compared with 2.61% for AUSM.

What is the main difference between MYMI and AUSM?

They also come from different issuers: State Street and Allspring. Their fees differ too: 0.20% for MYMI and 0.18% for AUSM.

Which has better risk-adjusted returns?

AUSM currently has the higher Sharpe Ratio (3.96 vs 2.54), 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.