PH vs VYM: Correlation
How closely do Parker Hannifin (PH) and Vanguard High Dividend Yield ETF (VYM) trade together? Their weekly returns over three years give a correlation of 0.67, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PH and VYM?
Over the past 3 years, PH and VYM moved with a correlation of 0.67, which is strong. Lately the two have drifted apart, with the 1-year correlation at 0.51 versus 0.67 over 3 years. Over 5 years the correlation is 0.70, and the annualized covariance of weekly returns is 220.3 %².
Among the 57 assets we track against PH, VYM ranks #14 by 3-year correlation. Over the last 12 months PH came out ahead by 11.7 percentage points (+32.8% against +21.1%). On a rolling one-year basis the correlation drifted between 0.49 and 0.87, a moderate band. One caveat on sizing: PH 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.
PH vs VYM: side by side
| PH (Parker Hannifin) | VYM (Vanguard High Dividend Yield ETF) | |
|---|---|---|
| 1-year return | +32.8% | +21.1% |
| 5-year return | +256.4% | +76.6% |
| Volatility (ann.) | 26.6% | 12.3% |
| Beta vs S&P 500 | 1.16 | 0.69 |
| Max drawdown (3Y) | -26.8% | -14.5% |
| Market cap | $127.5B | – |
| P/E (trailing) | 36.5 | – |
| Dividend yield | 0.71% | 2.24% |
| Expense ratio | – | 0.04% |
| Assets under management | – | $99.2B |
| Sector / category | Industrials | ETF · Dividend |
VYM, Vanguard's Large Value fund, carries $99.2B under management, 604 holdings, a 0.04% expense ratio, a 2.24% trailing dividend yield.
Year-by-year returns
| Year | PH | VYM |
|---|---|---|
| 2022 | -6.9% | -0.4% |
| 2023 | +60.8% | +6.6% |
| 2024 | +39.6% | +17.6% |
| 2025 | +39.5% | +15.4% |
| 2026 | +15.5% | +15.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PH and VYM good diversifiers for each other?
To a limited degree. At 0.67 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 PH and VYM?
As of 2026-08-27, the correlation of weekly returns between PH and VYM is 0.67 over 3 years, 0.51 over 1 year and 0.70 over 5 years.
Is VYM a good diversifier for PH?
To a limited degree. At 0.67 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 0.67 mean?
On the −1 to +1 scale, 0.67 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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Hubs: PH correlations · VYM correlations
