IBMQ vs. AUSM

Last updated Jun 4, 2026

IBMQ (iShares iBonds Dec 2028 Term Muni Bond ETF) and AUSM (Allspring Ultra Short Municipal ETF) are both Municipal Bonds funds. IBMQ is passively managed, while AUSM is actively managed. At a 0.17 correlation, their price movements are largely independent. Both charge a 0.18% expense ratio.

Performance

IBMQ vs. AUSM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares iBonds Dec 2028 Term Muni Bond ETF (IBMQ) 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, IBMQ achieves a 0.69% return, which is significantly lower than AUSM's 0.98% return.

IBMQ

• 1D: -0.08%
• 1M: 0.16%
• YTD: 0.69%
• 6M: 1.27%
• 1Y: 3.49%
• 3Y*: 2.96%
• 5Y*: 0.48%
• 10Y*: —

AUSM

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

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

IBMQ vs. AUSM - Yearly Performance Comparison

	2026 (YTD)	2025
IBMQ iShares iBonds Dec 2028 Term Muni Bond ETF	0.69%	1.88%
AUSM Allspring Ultra Short Municipal ETF	0.98%	1.63%

Correlation

The correlation between IBMQ and AUSM is 0.17, 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	0.17

Return for Risk

IBMQ vs. AUSM — Risk / Return Rank

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

IBMQ

IBMQ Risk / Return Rank: 77
IBMQ Sharpe Ratio Rank: 88
IBMQ Sortino Ratio Rank: 92
IBMQ Omega Ratio Rank: 91
IBMQ Calmar Ratio Rank: 64
IBMQ Martin Ratio Rank: 49

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.

IBMQ vs. AUSM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares iBonds Dec 2028 Term Muni Bond ETF (IBMQ) 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.

	IBMQ	AUSM	Difference
Sharpe ratio Return per unit of total volatility	2.91	—	—
Sortino ratio Return per unit of downside risk	4.41	—	—
Omega ratio Gain probability vs. loss probability	1.61	—	—
Calmar ratio Return relative to maximum drawdown	3.11	—	—
Martin ratio Return relative to average drawdown	8.20	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	IBMQ	AUSM	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.91	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.16	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.36	3.98	-3.62

Drawdowns

IBMQ vs. AUSM - Drawdown Comparison

The maximum IBMQ drawdown since its inception was -15.85%, which is greater than AUSM's maximum drawdown of -0.42%. Use the drawdown chart below to compare losses from any high point for IBMQ and AUSM.

Drawdown Indicators

	IBMQ	AUSM	Difference
Max Drawdown Largest peak-to-trough decline	-15.85%	-0.42%	-15.43%
Max Drawdown (1Y) Largest decline over 1 year	-1.13%	—	—
Max Drawdown (3Y) Largest decline over 3 years	-3.57%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-11.51%	—	—
Current Drawdown Current decline from peak	-0.33%	-0.02%	-0.31%
Average Drawdown Average peak-to-trough decline	-3.26%	-0.09%	-3.17%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.43%	—	—

Volatility

Volatility by Period

	IBMQ	AUSM	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.34%	—	—
Volatility (6M) Calculated over the trailing 6-month period	0.88%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	1.21%	0.73%	+0.48%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.96%	0.73%	+2.23%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.55%	0.73%	+4.82%

IBMQ vs. AUSM - Expense Ratio Comparison

Both IBMQ and AUSM have an expense ratio of 0.18%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.

Dividends

IBMQ vs. AUSM - Dividend Comparison

IBMQ's dividend yield for the trailing twelve months is around 2.45%, more than AUSM's 2.39% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019
AUSM Allspring Ultra Short Municipal ETF	2.39%	1.26%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
IBMQ iShares iBonds Dec 2028 Term Muni Bond ETF	2.45%	2.43%	2.33%	1.93%	1.25%	1.05%	1.24%	1.03%

Frequently Asked Questions

Can I hold both IBMQ and AUSM in my portfolio?

IBMQ and AUSM have a correlation of 0.17, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, IBMQ or AUSM?

Both ETFs have the same 0.18% expense ratio. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, IBMQ or AUSM?

IBMQ and AUSM have the same expense ratio: 0.18% per year.

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

IBMQ has the higher dividend yield at 2.45%, compared with 2.39% for AUSM.

What is the main difference between IBMQ and AUSM?

They also come from different issuers: iShares and Allspring.