VOO vs. AA
VOO (Vanguard S&P 500 ETF) is S&P 500 fund tracking the S&P 500 Index, while AA (Alcoa Corporation) is a stock. Over the past 5 years, VOO returned 13.43%/yr vs 14.08%/yr for AA. At a 0.46 correlation, their price movements are largely independent.
Performance
VOO vs. AA - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, VOO achieves a 9.08% return, which is significantly lower than AA's 29.83% return.
VOO
- 1D
- 0.55%
- 1M
- -0.07%
- YTD
- 9.08%
- 6M
- 9.44%
- 1Y
- 24.36%
- 3Y*
- 20.95%
- 5Y*
- 13.43%
- 10Y*
- 15.50%
AA
- 1D
- -0.30%
- 1M
- 0.64%
- YTD
- 29.83%
- 6M
- 49.53%
- 1Y
- 140.52%
- 3Y*
- 24.73%
- 5Y*
- 14.08%
- 10Y*
- —
VOO vs. AA - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VOO Vanguard S&P 500 ETF | 9.08% | 17.82% | 24.98% | 26.32% | -18.17% | 28.79% | 18.32% | 31.37% | -4.50% | 21.77% |
AA Alcoa Corporation | 29.83% | 42.46% | 12.43% | -24.33% | -23.12% | 159.05% | 7.16% | -19.07% | -50.66% | 91.84% |
Correlation
The correlation between VOO and AA is 0.45, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.45 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.45 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.47 |
Correlation (All Time) Calculated using the full available price history since Nov 1, 2016 | 0.46 |
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
VOO vs. AA — Risk / Return Rank
VOO
AA
VOO vs. AA - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard S&P 500 ETF (VOO) and Alcoa Corporation (AA). 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.
| VOO | AA | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.60 | ||
| Sortino ratioReturn per unit of downside risk | -0.35 | ||
| Omega ratioGain probability vs. loss probability | 1.36 | 1.36 | 0.00 |
| Calmar ratioReturn relative to maximum drawdown | 2.75 | 6.49 | -3.75 |
| Martin ratioReturn relative to average drawdown | 12.42 | 20.55 | -8.13 |
Loading charts...
Drawdowns
VOO vs. AA - Drawdown Comparison
The maximum VOO drawdown since its inception was -33.99%, smaller than the maximum AA drawdown of -90.90%. Use the drawdown chart below to compare losses from any high point for VOO and AA.
Loading charts...
Drawdown Indicators
| VOO | AA | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -33.99% | -90.90% | +56.91% |
Max Drawdown (1Y)Largest decline over 1 year | -8.90% | -21.77% | +12.87% |
Max Drawdown (3Y)Largest decline over 3 years | -18.69% | -52.25% | +33.56% |
Max Drawdown (5Y)Largest decline over 5 years | -24.52% | -75.46% | +50.94% |
Max Drawdown (10Y)Largest decline over 10 years | -33.99% | — | — |
Current DrawdownCurrent decline from peak | -2.34% | -24.27% | +21.93% |
Average DrawdownAverage peak-to-trough decline | -3.68% | -46.12% | +42.44% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.97% | 6.87% | -4.90% |
Volatility
VOO vs. AA - Volatility Comparison
The current volatility for Vanguard S&P 500 ETF (VOO) is 4.34%, while Alcoa Corporation (AA) has a volatility of 21.35%. This indicates that VOO experiences smaller price fluctuations and is considered to be less risky than AA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| VOO | AA | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.34% | 21.35% | -17.01% |
Volatility (6M)Calculated over the trailing 6-month period | 9.58% | 41.11% | -31.53% |
Volatility (1Y)Calculated over the trailing 1-year period | 12.27% | 54.44% | -42.17% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.88% | 56.26% | -39.38% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.03% | 55.66% | -37.63% |
Dividends
VOO vs. AA - Dividend Comparison
VOO's dividend yield for the trailing twelve months is around 1.05%, more than AA's 0.58% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AA Alcoa Corporation | 0.58% | 0.75% | 1.06% | 1.18% | 0.88% | 0.17% | 0.00% | 0.00% | 0.00% | 0.00% | 0.32% | 0.00% |
VOO Vanguard S&P 500 ETF | 1.05% | 1.13% | 1.24% | 1.46% | 1.69% | 1.25% | 1.54% | 1.88% | 2.06% | 1.78% | 2.02% | 2.10% |
Frequently Asked Questions
VOO and AA have a correlation of 0.45, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
AA has higher volatility (21.35%) compared to VOO (4.34%). In terms of maximum drawdown, VOO dropped -33.99% vs AA's -90.90%.
AA currently has the higher Sharpe Ratio (2.60 vs 1.99), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
Find the right allocation for VOO and AA
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