AMUN vs. BAB
AMUN (abrdn Ultra Short Municipal Income Active ETF) and BAB (Invesco Taxable Municipal Bond ETF) are both Municipal Bonds funds. AMUN is actively managed, while BAB is passively managed. At a 0.15 correlation, their price movements are largely independent. AMUN charges 0.25%/yr vs 0.28%/yr for BAB.
Performance
AMUN vs. BAB - Performance Comparison
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Returns By Period
In the year-to-date period, AMUN achieves a 1.11% return, which is significantly higher than BAB's 0.12% return.
AMUN
- 1D
- -0.02%
- 1M
- 0.32%
- YTD
- 1.11%
- 6M
- 1.36%
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
BAB
- 1D
- 0.00%
- 1M
- 0.33%
- YTD
- 0.12%
- 6M
- -0.01%
- 1Y
- 7.16%
- 3Y*
- 4.42%
- 5Y*
- -0.38%
- 10Y*
- 2.24%
AMUN vs. BAB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
AMUN abrdn Ultra Short Municipal Income Active ETF | 1.11% | 0.14% |
BAB Invesco Taxable Municipal Bond ETF | 0.12% | -0.51% |
Correlation
The correlation between AMUN and BAB is 0.15, 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 Oct 21, 2025 | 0.15 |
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Return for Risk
AMUN vs. BAB — Risk / Return Rank
AMUN
BAB
AMUN vs. BAB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for abrdn Ultra Short Municipal Income Active ETF (AMUN) and Invesco Taxable Municipal Bond ETF (BAB). 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.
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Sharpe Ratios by Period
| AMUN | BAB | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | — | 1.24 | — |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | — | -0.05 | — |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 0.23 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 2.05 | 0.52 | +1.53 |
Drawdowns
AMUN vs. BAB - Drawdown Comparison
The maximum AMUN drawdown since its inception was -0.61%, smaller than the maximum BAB drawdown of -27.80%. Use the drawdown chart below to compare losses from any high point for AMUN and BAB.
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Drawdown Indicators
| AMUN | BAB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -0.61% | -27.80% | +27.19% |
Max Drawdown (1Y)Largest decline over 1 year | — | -4.15% | — |
Max Drawdown (3Y)Largest decline over 3 years | — | -7.57% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -24.95% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -27.80% | — |
Current DrawdownCurrent decline from peak | -0.02% | -5.64% | +5.62% |
Average DrawdownAverage peak-to-trough decline | -0.09% | -5.31% | +5.22% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | — | 1.46% | — |
Volatility
AMUN vs. BAB - Volatility Comparison
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Volatility by Period
| AMUN | BAB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | — | 1.72% | — |
Volatility (6M)Calculated over the trailing 6-month period | — | 3.78% | — |
Volatility (1Y)Calculated over the trailing 1-year period | 1.01% | 5.80% | -4.79% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 1.01% | 8.33% | -7.32% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 1.01% | 9.69% | -8.68% |
AMUN vs. BAB - Expense Ratio Comparison
AMUN has a 0.25% expense ratio, which is lower than BAB's 0.28% expense ratio.
Dividends
AMUN vs. BAB - Dividend Comparison
AMUN's dividend yield for the trailing twelve months is around 1.89%, less than BAB's 4.10% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AMUN abrdn Ultra Short Municipal Income Active ETF | 1.89% | 0.66% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
BAB Invesco Taxable Municipal Bond ETF | 4.10% | 3.96% | 3.97% | 3.65% | 3.40% | 2.63% | 2.96% | 3.77% | 4.20% | 3.96% | 4.26% | 4.71% |
Frequently Asked Questions
AMUN and BAB have a correlation of 0.15, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, AMUN is cheaper at 0.25% per year. The better choice depends on whether you care most about return, fees, risk, or income.
AMUN is cheaper with a 0.25% expense ratio, compared with 0.28% for BAB.
BAB has the higher dividend yield at 4.10%, compared with 1.89% for AMUN.
They also come from different issuers: abrdn and Invesco. Their fees differ too: 0.25% for AMUN and 0.28% for BAB.
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