AUSM vs. WTMU

Last updated Jun 4, 2026

AUSM (Allspring Ultra Short Municipal ETF) and WTMU (WisdomTree Core Laddered Municipal ETF) are both Municipal Bonds funds. Both are actively managed. At a 0.16 correlation, their price movements are largely independent. AUSM charges 0.18%/yr vs 0.25%/yr for WTMU.

Performance

AUSM vs. WTMU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Allspring Ultra Short Municipal ETF (AUSM) and WisdomTree Core Laddered Municipal ETF (WTMU). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, AUSM achieves a 0.98% return, which is significantly higher than WTMU's 0.45% return.

AUSM

• 1D: -0.02%
• 1M: 0.21%
• YTD: 0.98%
• 6M: 1.34%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

WTMU

• 1D: 0.12%
• 1M: 0.43%
• YTD: 0.45%
• 6M: 0.94%
• 1Y: 5.96%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

AUSM vs. WTMU - Yearly Performance Comparison

	2026 (YTD)	2025
AUSM Allspring Ultra Short Municipal ETF	0.98%	1.63%
WTMU WisdomTree Core Laddered Municipal ETF	0.45%	4.22%

Correlation

The correlation between AUSM and WTMU is 0.16, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (All Time) Calculated using the full available price history since Jul 9, 2025	0.16

Return for Risk

AUSM vs. WTMU — Risk / Return Rank

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

WTMU

WTMU Risk / Return Rank: 70
WTMU Sharpe Ratio Rank: 83
WTMU Sortino Ratio Rank: 87
WTMU Omega Ratio Rank: 92
WTMU Calmar Ratio Rank: 45
WTMU Martin Ratio Rank: 40

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.

AUSM vs. WTMU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Allspring Ultra Short Municipal ETF (AUSM) and WisdomTree Core Laddered Municipal ETF (WTMU). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	AUSM	WTMU	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	2.69	—
Sharpe Ratio (All Time) Calculated using the full available price history	3.98	1.01	+2.97

Drawdowns

AUSM vs. WTMU - Drawdown Comparison

The maximum AUSM drawdown since its inception was -0.42%, smaller than the maximum WTMU drawdown of -4.24%. Use the drawdown chart below to compare losses from any high point for AUSM and WTMU.

Drawdown Indicators

	AUSM	WTMU	Difference
Max Drawdown Largest peak-to-trough decline	-0.42%	-4.24%	+3.82%
Max Drawdown (1Y) Largest decline over 1 year	—	-2.72%	—
Current Drawdown Current decline from peak	-0.02%	-1.52%	+1.50%
Average Drawdown Average peak-to-trough decline	-0.09%	-0.64%	+0.55%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.96%	—

Volatility

Volatility by Period

	AUSM	WTMU	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	0.74%	—
Volatility (6M) Calculated over the trailing 6-month period	—	1.77%	—
Volatility (1Y) Calculated over the trailing 1-year period	0.73%	2.22%	-1.49%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	0.73%	4.76%	-4.03%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	0.73%	4.76%	-4.03%

AUSM vs. WTMU - Expense Ratio Comparison

AUSM has a 0.18% expense ratio, which is lower than WTMU's 0.25% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

AUSM vs. WTMU - Dividend Comparison

AUSM's dividend yield for the trailing twelve months is around 2.39%, less than WTMU's 2.98% yield.

Position	TTM	2025
AUSM Allspring Ultra Short Municipal ETF	2.39%	1.26%
WTMU WisdomTree Core Laddered Municipal ETF	2.98%	2.15%

Frequently Asked Questions

Can I hold both AUSM and WTMU in my portfolio?

AUSM and WTMU have a correlation of 0.16, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, AUSM or WTMU?

On fees, AUSM is cheaper at 0.18% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, AUSM or WTMU?

AUSM is cheaper with a 0.18% expense ratio, compared with 0.25% for WTMU.

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

WTMU has the higher dividend yield at 2.98%, compared with 2.39% for AUSM.

What is the main difference between AUSM and WTMU?

They also come from different issuers: Allspring and WisdomTree. Their fees differ too: 0.18% for AUSM and 0.25% for WTMU.