VOO vs. VO
Compare and contrast key facts about Vanguard S&P 500 ETF (VOO) and Vanguard Mid-Cap ETF (VO).
VOO and VO are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. 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. VO is a passively managed fund by Vanguard that tracks the performance of the CRSP US Mid Cap Index. It was launched on Jan 26, 2004. Both VOO and VO 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
VOO vs. VO - Performance Comparison
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VOO vs. VO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
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% |
VO Vanguard Mid-Cap ETF | -0.68% | 11.62% | 15.31% | 16.03% | -18.73% | 24.70% | 18.10% | 30.98% | -9.24% | 19.28% |
Returns By Period
In the year-to-date period, VOO achieves a -4.42% return, which is significantly lower than VO's -0.68% return. Over the past 10 years, VOO has outperformed VO with an annualized return of 14.05%, while VO has yielded a comparatively lower 10.67% annualized return.
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%
VO
- 1D
- 2.22%
- 1M
- -5.86%
- YTD
- -0.68%
- 6M
- -1.48%
- 1Y
- 12.73%
- 3Y*
- 12.61%
- 5Y*
- 6.66%
- 10Y*
- 10.67%
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VOO vs. VO - Expense Ratio Comparison
VOO has a 0.03% expense ratio, which is lower than VO's 0.04% 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%.
Return for Risk
VOO vs. VO — Risk / Return Rank
VOO
VO
VOO vs. VO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard S&P 500 ETF (VOO) and Vanguard Mid-Cap ETF (VO). 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.
| VOO | VO | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.98 | 0.73 | +0.25 |
Sortino ratioReturn per unit of downside risk | 1.50 | 1.12 | +0.37 |
Omega ratioGain probability vs. loss probability | 1.23 | 1.16 | +0.07 |
Calmar ratioReturn relative to maximum drawdown | 1.53 | 1.05 | +0.48 |
Martin ratioReturn relative to average drawdown | 7.29 | 4.84 | +2.45 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| VOO | VO | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.98 | 0.73 | +0.25 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.70 | 0.38 | +0.32 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.78 | 0.57 | +0.22 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.83 | 0.48 | +0.35 |
Correlation
The correlation between VOO and VO is 0.92, 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
VOO vs. VO - Dividend Comparison
VOO's dividend yield for the trailing twelve months is around 1.19%, less than VO's 1.51% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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% |
VO Vanguard Mid-Cap ETF | 1.51% | 1.52% | 1.49% | 1.52% | 1.60% | 1.12% | 1.45% | 1.48% | 1.82% | 1.35% | 1.45% | 1.47% |
Drawdowns
VOO vs. VO - Drawdown Comparison
The maximum VOO drawdown since its inception was -33.99%, smaller than the maximum VO drawdown of -58.87%. Use the drawdown chart below to compare losses from any high point for VOO and VO.
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Drawdown Indicators
| VOO | VO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -33.99% | -58.87% | +24.88% |
Max Drawdown (1Y)Largest decline over 1 year | -11.98% | -12.74% | +0.76% |
Max Drawdown (5Y)Largest decline over 5 years | -24.52% | -27.57% | +3.05% |
Max Drawdown (10Y)Largest decline over 10 years | -33.99% | -39.37% | +5.38% |
Current DrawdownCurrent decline from peak | -6.29% | -6.12% | -0.17% |
Average DrawdownAverage peak-to-trough decline | -3.72% | -7.91% | +4.19% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.52% | 2.76% | -0.24% |
Volatility
VOO vs. VO - Volatility Comparison
Vanguard S&P 500 ETF (VOO) has a higher volatility of 5.29% compared to Vanguard Mid-Cap ETF (VO) at 4.89%. This indicates that VOO's price experiences larger fluctuations and is considered to be riskier than VO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VOO | VO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.29% | 4.89% | +0.40% |
Volatility (6M)Calculated over the trailing 6-month period | 9.44% | 9.72% | -0.28% |
Volatility (1Y)Calculated over the trailing 1-year period | 18.10% | 17.57% | +0.53% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.82% | 17.62% | -0.80% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 17.99% | 18.94% | -0.95% |