Compare/Updated Oct 26, 2026, refreshed every trading day
VO vs VOO
Vanguard Morningstar Mid-Cap ETF against Vanguard S&P 500 ETF: 4 years of returns, risk and today’s technical read, from Kavout’s own data.
VO did not perform as well as VOO over the period from Oct. 28, 2022, to Oct. 23, 2026. A $1,000 investment in VO grew to $1,681, a 68.1% gain, while the same investment in VOO grew to $2,065, a 106.5% gain. VOO also led over three years, gaining 83.6% versus 64.0% for VO, and over one year, gaining 15.1% versus 12.5%. The performance advantage came with nearly identical risk: volatility was 12.7% for VOO versus 12.4% for VO, while worst drawdowns were -18.7% and -19.0%, respectively. Both charge a 0.03% expense ratio. Their daily moves were highly correlated at 0.899, but VOO won 27 of the last 48 months, compared with 21 for VO.
- Price is above its 200-day average ($78); 50-day at $81.
- RSI 52, neutral. Supertrend says buy. ADX 17, so the trend is weak.
- Price is above its 200-day average ($665); 50-day at $705.
- RSI 42, neutral. Supertrend says sell. ADX 14, so the trend is weak.
Head to head
Which has returned more, VO or VOO?
VO beat VOO in 21 of the last 48 months; VOO won the other 27. The typical monthly gap was 1.47 points.
Total return by period
Which is riskier?
VO: Nov 29, 2024 to Apr 8, 2025; VOO: Feb 19, 2025 to Apr 8, 2025
- 0.899
- correlation of daily moves, 4 years
- 0.91
- VO move per 1% in VOO
- 0.824
- correlation, last 12 months
Month by month
Of the last 48 months. The typical gap was 1.47 points.
When did they diverge?
| Month | VO | VOO | Gap |
|---|---|---|---|
| March 2023 | -1.1% | +3.7% | -4.82 pts |
| December 2024 | -6.8% | -2.3% | -4.48 pts |
| February 2026 | +3.4% | -0.8% | +4.23 pts |
| June 2024 | -0.6% | +3.6% | -4.19 pts |
Where the numbers come from. 1000 daily adjusted closes per fund from the Kavout market-data API, dividends included. Signals and indicators are Kavout’s own, refreshed nightly. Every figure is calculated from those adjusted closes.
Holdings and fees
What do you actually own with VO and VOO?
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