GOOG vs VOO: Correlation
Alphabet Inc. (Class C) (GOOG) and Vanguard S&P 500 ETF (VOO) show a moderate relationship: their 3-year correlation of weekly returns is 0.56.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GOOG and VOO?
Across a 3-year window, the weekly returns of GOOG and VOO correlate at 0.56, moderate. Little has changed lately, as the 1-year reading of 0.58 lands near the 3-year figure. Stretching to 5 years gives 0.61, with an annualized covariance of 250.5 %².
By 3-year correlation, VOO places #11 of the 36 assets tracked against GOOG. The last year tells two different stories: GOOG led by 42.1 percentage points, +62.7% for GOOG against +20.6% for VOO. The rolling one-year correlation moved between 0.41 and 0.67 over the past three years, a moderate range. One caveat on sizing: GOOG is 2.2 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
GOOG vs VOO: side by side
| GOOG (Alphabet Inc. (Class C)) | VOO (Vanguard S&P 500 ETF) | |
|---|---|---|
| 1-year return | +62.7% | +20.6% |
| 5-year return | +134.2% | +83.0% |
| Volatility (ann.) | 31.1% | 14.4% |
| Beta vs S&P 500 | 1.20 | 0.99 |
| Max drawdown (3Y) | -29.4% | -18.7% |
| Market cap | $4,130.2B | – |
| P/E (trailing) | 17.0 | – |
| Dividend yield | 0.25% | 1.07% |
| Expense ratio | – | 0.03% |
| Assets under management | – | $1,686.9B |
| Sector / category | Communication Services | ETF · US Large Cap |
VOO, Vanguard's Large Blend fund, carries $1,686.9B under management, 503 holdings, a 0.03% expense ratio, a 1.07% trailing dividend yield.
Year-by-year returns
| Year | GOOG | VOO |
|---|---|---|
| 2022 | -38.7% | -18.2% |
| 2023 | +58.8% | +26.3% |
| 2024 | +35.6% | +25.0% |
| 2025 | +65.4% | +17.8% |
| 2026 | +7.8% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Fund exposure
GOOG represents 2.62% of VOO's portfolio, so part of any move in VOO is GOOG itself, and the correlation between them is partly mechanical.
Are GOOG and VOO good diversifiers for each other?
Somewhat, no more. With 0.56 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between GOOG and VOO?
The GOOG/VOO correlation stands at 0.56 on a 3-year window (1 year: 0.58, 5 years: 0.61), computed from weekly returns as of 2026-08-27.
Is VOO a good diversifier for GOOG?
Somewhat, no more. With 0.56 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.56 mean?
On the −1 to +1 scale, 0.56 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
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Related comparisons
Hubs: GOOG correlations · VOO correlations
