TAXX vs. AUSM

Last updated Jul 18, 2026

TAXX (Bondbloxx IR+M Tax-Aware Short Duration ETF) and AUSM (Allspring Ultra Short Municipal ETF) are both Municipal Bonds funds. Both are actively managed. Over the past year, TAXX returned 3.39% vs 2.93% for AUSM. At a 0.08 correlation, their price movements are largely independent. TAXX charges 0.35%/yr vs 0.18%/yr for AUSM.

Performance

TAXX vs. AUSM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Bondbloxx IR+M Tax-Aware Short Duration ETF (TAXX) and Allspring Ultra Short Municipal ETF (AUSM). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both investments are quite close, with TAXX having a 1.28% return and AUSM slightly higher at 1.34%.

TAXX

• 1D: 0.01%
• 1M: 0.17%
• 6M: 0.98%
• YTD: 1.28%
• 1Y: 3.39%
• 3Y*: —
• 5Y*: —
• 10Y*: —

AUSM

• 1D: -0.12%
• 1M: 0.13%
• 6M: 1.10%
• YTD: 1.34%
• 1Y: 2.93%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

TAXX vs. AUSM - Yearly Performance Comparison

	2026 (YTD)	2025
TAXX Bondbloxx IR+M Tax-Aware Short Duration ETF	1.28%	2.13%
AUSM Allspring Ultra Short Municipal ETF	1.34%	1.58%

Correlation

The correlation between TAXX and AUSM is 0.09, 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	0.09
Correlation (All Time) Calculated using the full available price history since Jul 8, 2025	0.08

Return for Risk

TAXX vs. AUSM — Risk / Return Rank

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

TAXX

TAXX Risk / Return Rank: 89
TAXX Sharpe Ratio Rank: 90
TAXX Sortino Ratio Rank: 92
TAXX Omega Ratio Rank: 94
TAXX Calmar Ratio Rank: 87
TAXX Martin Ratio Rank: 85

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: 95

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.

TAXX vs. AUSM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Bondbloxx IR+M Tax-Aware Short Duration ETF (TAXX) 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.

	TAXX	AUSM	Difference
Sharpe ratio: Return per unit of total volatility	2.40	3.92	-1.52
Sortino ratio: Return per unit of downside risk	3.54	6.72	-3.18
Omega ratio: Gain probability vs. loss probability	1.53	2.25	-0.72
Calmar ratio: Return relative to maximum drawdown	3.86	7.04	-3.18
Martin ratio: Return relative to average drawdown	13.18	20.81	-7.63

TAXX vs. AUSM - Sharpe Ratio Comparison

The current TAXX Sharpe Ratio is 2.40, which is lower than the AUSM Sharpe Ratio of 3.92. The chart below compares the historical Sharpe Ratios of TAXX 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

TAXX vs. AUSM - Drawdown Comparison

The maximum TAXX drawdown since its inception was -0.91%, which is greater than AUSM's maximum drawdown of -0.42%. Use the drawdown chart below to compare losses from any high point for TAXX and AUSM.

Drawdown Indicators

	TAXX	AUSM	Difference
Max Drawdown Largest peak-to-trough decline	-0.91%	-0.42%	-0.49%
Max Drawdown (1Y) Largest decline over 1 year	-0.88%	-0.42%	-0.46%
Current Drawdown Current decline from peak	-0.11%	-0.12%	+0.01%
Average Drawdown Average peak-to-trough decline	-0.16%	-0.08%	-0.08%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.26%	0.14%	+0.12%

Volatility

TAXX vs. AUSM - Volatility Comparison

Bondbloxx IR+M Tax-Aware Short Duration ETF (TAXX) has a higher volatility of 0.28% compared to Allspring Ultra Short Municipal ETF (AUSM) at 0.21%. This indicates that TAXX'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

	TAXX	AUSM	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.28%	0.21%	+0.07%
Volatility (6M) Calculated over the trailing 6-month period	0.84%	0.48%	+0.36%
Volatility (1Y) Calculated over the trailing 1-year period	1.42%	0.75%	+0.67%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.57%	0.75%	+0.82%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.57%	0.75%	+0.82%

TAXX vs. AUSM - Expense Ratio Comparison

TAXX has a 0.35% expense ratio, which is higher than AUSM's 0.18% expense ratio.

Dividends

TAXX vs. AUSM - Dividend Comparison

TAXX's dividend yield for the trailing twelve months is around 3.45%, more than AUSM's 2.61% yield.

Position	TTM	2025	2024
AUSM Allspring Ultra Short Municipal ETF	2.61%	1.26%	0.00%
TAXX Bondbloxx IR+M Tax-Aware Short Duration ETF	3.45%	3.72%	2.70%

Frequently Asked Questions

Can I hold both TAXX and AUSM in my portfolio?

TAXX and AUSM have a correlation of 0.09, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, TAXX or AUSM?

TAXX has higher volatility (0.28%) compared to AUSM (0.21%). In terms of maximum drawdown, TAXX dropped -0.91% vs AUSM's -0.42%.

Which ETF is better, TAXX or AUSM?

On 1-year performance, TAXX leads with 3.39% vs 2.93% for AUSM. On fees, AUSM is cheaper at 0.18% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, TAXX or AUSM?

Over the 1-year period, TAXX has performed better with a 3.39% return vs 2.93%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, TAXX or AUSM?

AUSM is cheaper with a 0.18% expense ratio, compared with 0.35% for TAXX.

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

TAXX has the higher dividend yield at 3.45%, compared with 2.61% for AUSM.

What is the main difference between TAXX and AUSM?

They also come from different issuers: BondBloxx and Allspring. Their fees differ too: 0.35% for TAXX and 0.18% for AUSM.

Which has better risk-adjusted returns?

AUSM currently has the higher Sharpe Ratio (3.92 vs 2.40), 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.