APH vs VOO: Correlation
How closely do Amphenol (APH) and Vanguard S&P 500 ETF (VOO) trade together? Their weekly returns over three years give a correlation of 0.68, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are APH and VOO?
Across a 3-year window, the weekly returns of APH and VOO correlate at 0.68, strong. The past 12 months show a weaker link (0.48) than the 3-year average (0.68). Stretching to 5 years gives 0.70, with an annualized covariance of 327.3 %².
Within APH's tracked universe of 38 assets, VOO comes in at #10 by 3-year correlation. Correlation aside, the last 12 months split them widely, with APH ahead by 26.9 points (+47.5% versus +20.6%). The rolling one-year correlation moved between 0.44 and 0.82 over the past three years, a moderate range. Risk is not evenly split, since APH carries 2.3 times the volatility of the other side.
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.
APH vs VOO: side by side
| APH (Amphenol) | VOO (Vanguard S&P 500 ETF) | |
|---|---|---|
| 1-year return | +47.5% | +20.6% |
| 5-year return | +338.9% | +83.0% |
| Volatility (ann.) | 33.6% | 14.4% |
| Beta vs S&P 500 | 1.57 | 0.99 |
| Max drawdown (3Y) | -28.2% | -18.7% |
| Market cap | $199.0B | – |
| P/E (trailing) | 40.3 | – |
| Dividend yield | 0.57% | 1.07% |
| Expense ratio | – | 0.03% |
| Assets under management | – | $1,686.9B |
| Sector / category | Information Technology | 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 | APH | VOO |
|---|---|---|
| 2022 | -12.0% | -18.2% |
| 2023 | +31.5% | +26.3% |
| 2024 | +41.3% | +25.0% |
| 2025 | +96.1% | +17.8% |
| 2026 | +19.8% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Fund exposure
A structural note: 0.31% of VOO is APH itself, so the fund partly moves with the stock by construction.
Are APH and VOO good diversifiers for each other?
To a limited degree. At 0.68 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between APH and VOO?
The APH/VOO correlation stands at 0.68 on a 3-year window (1 year: 0.48, 5 years: 0.70), computed from weekly returns as of 2026-08-27.
Is VOO a good diversifier for APH?
To a limited degree. At 0.68 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.68 mean?
On the −1 to +1 scale, 0.68 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: APH correlations · VOO correlations
