MAR vs PH: Correlation
How closely do Marriott International (MAR) and Parker Hannifin (PH) trade together? Their weekly returns over three years give a correlation of 0.63, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MAR and PH?
On 3 years of weekly data the MAR/PH correlation comes out at 0.63, strong. The link has loosened recently: the 1-year correlation (0.49) runs below the 3-year figure (0.63). The 5-year figure is 0.61, and annualized covariance runs at 414.3 %².
Within MAR's tracked universe of 40 assets, PH comes in at #8 by 3-year correlation. Twelve-month performance is nearly a tie, at +32.3% for MAR and +32.8% for PH. On a rolling one-year basis the correlation drifted between 0.50 and 0.81, a moderate band.
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.
MAR vs PH: side by side
| MAR (Marriott International) | PH (Parker Hannifin) | |
|---|---|---|
| 1-year return | +32.3% | +32.8% |
| 5-year return | +173.2% | +256.4% |
| Volatility (ann.) | 24.6% | 26.6% |
| Beta vs S&P 500 | 0.97 | 1.16 |
| Max drawdown (3Y) | -30.5% | -26.8% |
| Market cap | $92.3B | $127.5B |
| P/E (trailing) | 36.7 | 36.5 |
| Dividend yield | 0.76% | 0.71% |
| Sector / category | Consumer Discretionary | Industrials |
Year-by-year returns
| Year | MAR | PH |
|---|---|---|
| 2022 | -9.3% | -6.9% |
| 2023 | +53.1% | +60.8% |
| 2024 | +24.9% | +39.6% |
| 2025 | +12.3% | +39.5% |
| 2026 | +14.7% | +15.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MAR and PH good diversifiers for each other?
Only partially. A correlation of 0.63 means MAR and PH share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between MAR and PH?
The MAR/PH correlation stands at 0.63 on a 3-year window (1 year: 0.49, 5 years: 0.61), computed from weekly returns as of 2026-08-27.
Is PH a good diversifier for MAR?
Only partially. A correlation of 0.63 means MAR and PH share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.63 mean?
On the −1 to +1 scale, 0.63 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.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/mar-vs-ph.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/mar-vs-ph/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: MAR correlations · PH correlations
