PH vs TWIN: Correlation
How closely do Parker Hannifin (PH) and Twin Disc, Incorporated (TWIN) trade together? Their weekly returns over three years give a correlation of 0.43, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PH and TWIN?
On 3 years of weekly data the PH/TWIN correlation comes out at 0.43, moderate. The past 12 months show a tighter link (0.56) than the 3-year average (0.43). The 5-year figure is 0.36, and annualized covariance runs at 579.3 %².
By 3-year correlation, TWIN places #43 of the 57 assets tracked against PH. Correlation aside, the last 12 months split them widely, with TWIN ahead by 53.4 points (+32.8% versus +86.2%). Note the risk asymmetry: TWIN runs 1.9 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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 TWIN: side by side
| PH (Parker Hannifin) | TWIN (Twin Disc, Incorporated) | |
|---|---|---|
| 1-year return | +32.8% | +86.2% |
| 5-year return | +256.4% | +98.7% |
| Volatility (ann.) | 26.6% | 50.6% |
| Beta vs S&P 500 | 1.16 | 0.83 |
| Max drawdown (3Y) | -26.8% | -64.4% |
| Market cap | $127.5B | $0.3B |
| P/E (trailing) | 36.5 | 12.6 |
| Dividend yield | 0.71% | 0.68% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | PH | TWIN |
|---|---|---|
| 2022 | -6.9% | -11.3% |
| 2023 | +60.8% | +66.7% |
| 2024 | +39.6% | -26.4% |
| 2025 | +39.5% | +44.4% |
| 2026 | +15.5% | +41.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PH and TWIN good diversifiers for each other?
A fair diversifier. At 0.43, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between PH and TWIN?
As of 2026-08-27, the correlation of weekly returns between PH and TWIN is 0.43 over 3 years, 0.56 over 1 year and 0.36 over 5 years.
Is TWIN a good diversifier for PH?
A fair diversifier. At 0.43, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.43 mean?
On the −1 to +1 scale, 0.43 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/ph-vs-twin.json
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[](https://www.pairbook.io/pair/ph-vs-twin/)
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Related comparisons
Hubs: PH correlations · TWIN correlations
