LMUB vs. AUSM
LMUB (iShares Long-Term National Muni Bond ETF) and AUSM (Allspring Ultra Short Municipal ETF) are both Municipal Bonds funds. LMUB is passively managed, while AUSM is actively managed. At a 0.10 correlation, their price movements are largely independent. LMUB charges 0.09%/yr vs 0.18%/yr for AUSM.
Performance
LMUB vs. AUSM - Performance Comparison
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Returns By Period
In the year-to-date period, LMUB achieves a 2.62% return, which is significantly higher than AUSM's 1.18% return.
LMUB
- 1D
- -0.08%
- 1M
- 2.29%
- YTD
- 2.62%
- 6M
- 2.57%
- 1Y
- 9.00%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
AUSM
- 1D
- -0.02%
- 1M
- 0.23%
- YTD
- 1.18%
- 6M
- 1.32%
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
LMUB vs. AUSM - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
LMUB iShares Long-Term National Muni Bond ETF | 2.62% | 5.96% |
AUSM Allspring Ultra Short Municipal ETF | 1.18% | 1.58% |
Correlation
The correlation between LMUB and AUSM is 0.10, 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 8, 2025 | 0.10 |
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Return for Risk
LMUB vs. AUSM — Risk / Return Rank
LMUB
AUSM
Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.
LMUB vs. AUSM - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Long-Term National Muni Bond ETF (LMUB) 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.
| LMUB | AUSM | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | 1.44 | — | — |
| Calmar ratioReturn relative to maximum drawdown | 2.90 | — | — |
| Martin ratioReturn relative to average drawdown | 10.21 | — | — |
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Drawdowns
LMUB vs. AUSM - Drawdown Comparison
The maximum LMUB drawdown since its inception was -5.51%, which is greater than AUSM's maximum drawdown of -0.42%. Use the drawdown chart below to compare losses from any high point for LMUB and AUSM.
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Drawdown Indicators
| LMUB | AUSM | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -5.51% | -0.42% | -5.09% |
Max Drawdown (1Y)Largest decline over 1 year | -3.11% | — | — |
Current DrawdownCurrent decline from peak | -0.11% | -0.03% | -0.08% |
Average DrawdownAverage peak-to-trough decline | -1.54% | -0.09% | -1.45% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.88% | — | — |
Volatility
LMUB vs. AUSM - Volatility Comparison
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Volatility by Period
| LMUB | AUSM | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.08% | — | — |
Volatility (6M)Calculated over the trailing 6-month period | 2.97% | — | — |
Volatility (1Y)Calculated over the trailing 1-year period | 4.15% | 0.75% | +3.40% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.86% | 0.75% | +5.11% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.86% | 0.75% | +5.11% |
LMUB vs. AUSM - Expense Ratio Comparison
LMUB has a 0.09% expense ratio, which is lower than AUSM's 0.18% 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
LMUB vs. AUSM - Dividend Comparison
LMUB's dividend yield for the trailing twelve months is around 3.76%, more than AUSM's 2.39% yield.
| Position | TTM | 2025 |
|---|---|---|
AUSM Allspring Ultra Short Municipal ETF | 2.39% | 1.26% |
LMUB iShares Long-Term National Muni Bond ETF | 3.76% | 3.14% |
Frequently Asked Questions
LMUB and AUSM have a correlation of 0.10, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, LMUB is cheaper at 0.09% per year. The better choice depends on whether you care most about return, fees, risk, or income.
LMUB is cheaper with a 0.09% expense ratio, compared with 0.18% for AUSM.
LMUB has the higher dividend yield at 3.76%, compared with 2.39% for AUSM.
They also come from different issuers: iShares and Allspring. Their fees differ too: 0.09% for LMUB and 0.18% for AUSM.
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