AUSM vs VOO
Allspring Ultra Short Municipal ETF vs Vanguard S&P 500 ETF
Quick Verdict
VOO has a lower expense ratio. VOO delivered stronger 1-year returns. VOO offers more diversification with 509 holdings.
Side-by-Side Comparison
| Metric | AUSM | VOO | Winner |
|---|---|---|---|
| Expense Ratio | 0.18% | 0.03% | |
| AUM | $33M | $997.4B | |
| Dividend Yield | 2.77% | 1.08% | |
| Holdings | 95 | 509 | |
| YTD Return | +1.55% | +12.25% | |
| 1Y Return | +2.65% | +20.92% | |
| 3Y Return (annualized) | - | +21.79% | |
| 5Y Return (annualized) | - | +13.05% | |
| Volatility (annualized) | 0.6% | 14.1% | |
| Max Drawdown | -0.4% | -34.3% | |
| Fund Family | Allspring Global Investments | Vanguard (US) | |
| Category | Tax Preferred | Equity | |
| Inception | Jul 8, 2025 | Sep 7, 2010 |
AUSM vs VOO Performance
Allspring Ultra Short Municipal ETF (AUSM) is a ETF from Allspring Global Investments and Vanguard S&P 500 ETF (VOO) is a ETF from Vanguard (US). Over the past year AUSM returned +2.65% while VOO returned +20.92%. Year to date, AUSM is up 1.55% versus a gain of 12.25% for VOO.
Risk: Volatility and Drawdowns
VOO has been the more volatile fund, with annualized monthly volatility of 14.1% compared with 0.6% for AUSM. Lower volatility generally means a smoother ride, though it often comes with lower long-run returns.
The deepest peak-to-trough decline in our data was -0.4% for AUSM and -34.3% for VOO. Drawdown depth is worth weighing if you expect to sell during market stress rather than ride it out.
The two funds' monthly returns correlate at 0.36. They move independently enough that combining them can meaningfully diversify a portfolio.
Fees and Cost Over Time
AUSM charges 0.18% per year while VOO charges 0.03%. On a $10,000 position that is $18 vs $3 annually, a gap of $15 per year that compounds over a long holding period. On income, AUSM currently yields 2.77% against 1.08% for VOO.
Holdings Overlap
AUSM and VOO share 0 holdings out of 518 unique holdings combined, representing a 0.0% weight overlap.
Moderate overlap means holding both could provide meaningful diversification benefits.
Frequently Asked Questions
Which is cheaper, AUSM or VOO?
AUSM has an expense ratio of 0.18% while VOO charges 0.03%. VOO is the cheaper option. On a $10,000 investment, that is $15 per year of difference.
Which performed better, AUSM or VOO?
Over the past year AUSM returned +2.65% vs +20.92% for VOO, so VOO leads on 1-year performance. Over the longest common window we track (1 years), AUSM annualized +2.85% vs +13.45% for VOO. Past performance does not guarantee future results.
Which is riskier, AUSM or VOO?
VOO has been the more volatile fund at 14.1% annualized versus 0.6% for AUSM. Worst drawdown: AUSM -0.4% vs VOO -34.3%.
Should I hold both AUSM and VOO?
AUSM and VOO have a monthly-return correlation of 0.36, so combining them can provide real diversification depending on your allocation goals.
What is the holdings overlap between AUSM and VOO?
AUSM and VOO share 0 common holdings with a 0.0% weight overlap. Combined, they hold 518 unique securities.
Which pays a higher dividend, AUSM or VOO?
AUSM yields 2.77% while VOO yields 1.08%, so AUSM currently pays the higher dividend yield.
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