AUSM vs. CATF
AUSM (Allspring Ultra Short Municipal ETF) and CATF (American Century California Municipal Bond ETF) are both Municipal Bonds funds. Both are actively managed. At a 0.21 correlation, their price movements are largely independent. AUSM charges 0.18%/yr vs 0.27%/yr for CATF.
Performance
AUSM vs. CATF - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, AUSM achieves a 0.98% return, which is significantly lower than CATF's 1.92% return.
AUSM
- 1D
- -0.02%
- 1M
- 0.21%
- YTD
- 0.98%
- 6M
- 1.34%
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
CATF
- 1D
- -0.15%
- 1M
- 0.55%
- YTD
- 1.92%
- 6M
- 1.99%
- 1Y
- 7.98%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
AUSM vs. CATF - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
AUSM Allspring Ultra Short Municipal ETF | 0.98% | 1.63% |
CATF American Century California Municipal Bond ETF | 1.92% | 5.09% |
Correlation
The correlation between AUSM and CATF is 0.21, 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 | 0.21 |
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
AUSM vs. CATF — Risk / Return Rank
AUSM
CATF
AUSM vs. CATF - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Allspring Ultra Short Municipal ETF (AUSM) and American Century California Municipal Bond ETF (CATF). 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.
Loading charts...
Sharpe Ratios by Period
| AUSM | CATF | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | — | 2.55 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 3.98 | 0.79 | +3.19 |
Drawdowns
AUSM vs. CATF - Drawdown Comparison
The maximum AUSM drawdown since its inception was -0.42%, smaller than the maximum CATF drawdown of -4.83%. Use the drawdown chart below to compare losses from any high point for AUSM and CATF.
Loading charts...
Drawdown Indicators
| AUSM | CATF | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -0.42% | -4.83% | +4.41% |
Max Drawdown (1Y)Largest decline over 1 year | — | -2.77% | — |
Current DrawdownCurrent decline from peak | -0.02% | -0.58% | +0.56% |
Average DrawdownAverage peak-to-trough decline | -0.09% | -1.27% | +1.18% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | — | 0.79% | — |
Volatility
AUSM vs. CATF - Volatility Comparison
Loading charts...
Volatility by Period
| AUSM | CATF | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | — | 1.06% | — |
Volatility (6M)Calculated over the trailing 6-month period | — | 2.18% | — |
Volatility (1Y)Calculated over the trailing 1-year period | 0.73% | 3.14% | -2.41% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 0.73% | 4.33% | -3.60% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 0.73% | 4.33% | -3.60% |
AUSM vs. CATF - Expense Ratio Comparison
AUSM has a 0.18% expense ratio, which is lower than CATF's 0.27% 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. CATF - Dividend Comparison
AUSM's dividend yield for the trailing twelve months is around 2.39%, less than CATF's 3.22% yield.
| Position | TTM | 2025 | 2024 |
|---|---|---|---|
AUSM Allspring Ultra Short Municipal ETF | 2.39% | 1.26% | 0.00% |
CATF American Century California Municipal Bond ETF | 3.22% | 3.40% | 1.32% |
Frequently Asked Questions
AUSM and CATF have a correlation of 0.21, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
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.
AUSM is cheaper with a 0.18% expense ratio, compared with 0.27% for CATF.
CATF has the higher dividend yield at 3.22%, compared with 2.39% for AUSM.
They also come from different issuers: Allspring and American Century. Their fees differ too: 0.18% for AUSM and 0.27% for CATF.
Find the right allocation for AUSM and CATF
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer