SPIAX vs. VOO
Compare and contrast key facts about Invesco S&P 500 Index A (SPIAX) and Vanguard S&P 500 ETF (VOO).
SPIAX is a passively managed fund by Invesco that tracks the performance of the S&P 500. It was launched on Sep 26, 1997. VOO is a passively managed fund by Vanguard that tracks the performance of the S&P 500 Index. It was launched on Sep 7, 2010. Both SPIAX and VOO are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.
Performance
SPIAX vs. VOO - Performance Comparison
Loading graphics...
SPIAX vs. VOO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
SPIAX Invesco S&P 500 Index A | -7.17% | 17.23% | 24.34% | 25.63% | -18.56% | 27.99% | 17.84% | 30.78% | -4.97% | 21.13% |
VOO Vanguard S&P 500 ETF | -4.42% | 17.82% | 24.98% | 26.32% | -18.17% | 28.79% | 18.32% | 31.37% | -4.50% | 21.77% |
Returns By Period
In the year-to-date period, SPIAX achieves a -7.17% return, which is significantly lower than VOO's -4.42% return. Over the past 10 years, SPIAX has underperformed VOO with an annualized return of 13.13%, while VOO has yielded a comparatively higher 14.05% annualized return.
SPIAX
- 1D
- -0.39%
- 1M
- -7.71%
- YTD
- -7.17%
- 6M
- -4.82%
- 1Y
- 13.84%
- 3Y*
- 16.56%
- 5Y*
- 10.82%
- 10Y*
- 13.13%
VOO
- 1D
- 2.86%
- 1M
- -5.01%
- YTD
- -4.42%
- 6M
- -1.84%
- 1Y
- 17.67%
- 3Y*
- 18.27%
- 5Y*
- 11.75%
- 10Y*
- 14.05%
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
SPIAX vs. VOO - Expense Ratio Comparison
SPIAX has a 0.54% expense ratio, which is higher than VOO's 0.03% expense ratio.
Return for Risk
SPIAX vs. VOO — Risk / Return Rank
SPIAX
VOO
SPIAX vs. VOO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Invesco S&P 500 Index A (SPIAX) and Vanguard S&P 500 ETF (VOO). 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.
| SPIAX | VOO | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.81 | 0.98 | -0.18 |
Sortino ratioReturn per unit of downside risk | 1.25 | 1.50 | -0.24 |
Omega ratioGain probability vs. loss probability | 1.19 | 1.23 | -0.04 |
Calmar ratioReturn relative to maximum drawdown | 0.95 | 1.53 | -0.58 |
Martin ratioReturn relative to average drawdown | 4.59 | 7.29 | -2.70 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading graphics...
Sharpe Ratios by Period
| SPIAX | VOO | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.81 | 0.98 | -0.18 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.65 | 0.70 | -0.06 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.73 | 0.78 | -0.05 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.42 | 0.83 | -0.41 |
Correlation
The correlation between SPIAX and VOO is 1.00, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
SPIAX vs. VOO - Dividend Comparison
SPIAX's dividend yield for the trailing twelve months is around 1.09%, less than VOO's 1.19% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
SPIAX Invesco S&P 500 Index A | 1.09% | 1.01% | 1.08% | 1.04% | 1.07% | 1.90% | 1.26% | 1.93% | 2.59% | 1.28% | 1.28% | 1.53% |
VOO Vanguard S&P 500 ETF | 1.19% | 1.13% | 1.24% | 1.46% | 1.69% | 1.25% | 1.54% | 1.88% | 2.06% | 1.78% | 2.02% | 2.10% |
Drawdowns
SPIAX vs. VOO - Drawdown Comparison
The maximum SPIAX drawdown since its inception was -55.47%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for SPIAX and VOO.
Loading graphics...
Drawdown Indicators
| SPIAX | VOO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -55.47% | -33.99% | -21.48% |
Max Drawdown (1Y)Largest decline over 1 year | -12.15% | -11.98% | -0.17% |
Max Drawdown (5Y)Largest decline over 5 years | -24.81% | -24.52% | -0.29% |
Max Drawdown (10Y)Largest decline over 10 years | -33.84% | -33.99% | +0.15% |
Current DrawdownCurrent decline from peak | -8.97% | -6.29% | -2.68% |
Average DrawdownAverage peak-to-trough decline | -10.84% | -3.72% | -7.12% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.58% | 2.52% | +0.06% |
Volatility
SPIAX vs. VOO - Volatility Comparison
The current volatility for Invesco S&P 500 Index A (SPIAX) is 4.25%, while Vanguard S&P 500 ETF (VOO) has a volatility of 5.29%. This indicates that SPIAX experiences smaller price fluctuations and is considered to be less risky than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading graphics...
Volatility by Period
| SPIAX | VOO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.25% | 5.29% | -1.04% |
Volatility (6M)Calculated over the trailing 6-month period | 9.11% | 9.44% | -0.33% |
Volatility (1Y)Calculated over the trailing 1-year period | 18.17% | 18.10% | +0.07% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.87% | 16.82% | +0.05% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.05% | 17.99% | +0.06% |