AIOO vs VOO
AllianzIM US Equity Buffer100 Protection 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 | AIOO | VOO | Winner |
|---|---|---|---|
| Expense Ratio | 0.64% | 0.03% | |
| AUM | $49M | $979.0B | |
| Dividend Yield | 0.00% | 1.09% | |
| Holdings | 4 | 509 | |
| YTD Return | +3.09% | +14.48% | |
| 1Y Return | +5.01% | +22.02% | |
| 3Y Return (annualized) | - | +21.80% | |
| 5Y Return (annualized) | - | +13.36% | |
| Volatility (annualized) | 1.8% | 14.2% | |
| Max Drawdown | -0.7% | -34.3% | |
| Fund Family | AllianzIM | Vanguard (US) | |
| Category | Alternative | Equity | |
| Inception | Jun 30, 2025 | Sep 7, 2010 |
AIOO vs VOO Performance
AllianzIM US Equity Buffer100 Protection ETF (AIOO) is a ETF from AllianzIM and Vanguard S&P 500 ETF (VOO) is a ETF from Vanguard (US). Over the past year AIOO returned +5.01% while VOO returned +22.02%. Year to date, AIOO is up 3.09% versus a gain of 14.48% for VOO.
Risk: Volatility and Drawdowns
VOO has been the more volatile fund, with annualized monthly volatility of 14.2% compared with 1.8% for AIOO. 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 -0.7% for AIOO 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 0.93. They move almost in lockstep, so holding both mostly duplicates the same exposure.
Fees and Cost Over Time
AIOO charges 0.64% per year while VOO charges 0.03%. On a $10,000 position that is $64 vs $3 annually, a gap of $61 per year that compounds over a long holding period. On income, AIOO currently yields 0.00% against 1.09% for VOO.
Frequently Asked Questions
Which is cheaper, AIOO or VOO?
AIOO has an expense ratio of 0.64% while VOO charges 0.03%. VOO is the cheaper option. On a $10,000 investment, that is $61 per year of difference.
Which performed better, AIOO or VOO?
Over the past year AIOO returned +5.01% vs +22.02% for VOO, so VOO leads on 1-year performance. Over the longest common window we track (1 years), AIOO annualized +5.26% vs +13.61% for VOO. Past performance does not guarantee future results.
Which is riskier, AIOO or VOO?
VOO has been the more volatile fund at 14.2% annualized versus 1.8% for AIOO. Worst drawdown: AIOO -0.7% vs VOO -34.3%.
Should I hold both AIOO and VOO?
AIOO and VOO have a monthly-return correlation of 0.93, so they move almost identically. Holding both adds little diversification - most investors pick one, usually on fees or the specific index tracked.
Which pays a higher dividend, AIOO or VOO?
AIOO yields 0.00% while VOO yields 1.09%, so VOO currently pays the higher dividend yield.
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