FLS vs PH: Correlation
Measured on weekly returns over the past three years, Flowserve Corporation (FLS) and Parker Hannifin (PH) carry a correlation of 0.63, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FLS and PH?
On 3 years of weekly data the FLS/PH correlation comes out at 0.63, strong. The past 12 months show a weaker link (0.51) than the 3-year average (0.63). The 5-year figure is 0.65, and annualized covariance runs at 618.3 %².
Within FLS's tracked universe of 13 assets, PH comes in at #4 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months FLS outperformed by 18.6 percentage points (+51.4% for FLS against +32.8% for PH).
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.
FLS vs PH: side by side
| FLS (Flowserve Corporation) | PH (Parker Hannifin) | |
|---|---|---|
| 1-year return | +51.4% | +32.8% |
| 5-year return | +131.6% | +256.4% |
| Volatility (ann.) | 37.2% | 26.6% |
| Beta vs S&P 500 | 1.43 | 1.16 |
| Max drawdown (3Y) | -38.8% | -26.8% |
| Market cap | $10.4B | $127.5B |
| P/E (trailing) | 28.8 | 36.5 |
| Dividend yield | 1.04% | 0.71% |
| Sector / category | US Listed | Industrials |
Year-by-year returns
| Year | FLS | PH |
|---|---|---|
| 2022 | +3.1% | -6.9% |
| 2023 | +37.3% | +60.8% |
| 2024 | +41.9% | +39.6% |
| 2025 | +22.5% | +39.5% |
| 2026 | +18.9% | +15.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FLS and PH good diversifiers for each other?
To a limited degree. At 0.63 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 FLS and PH?
Using weekly returns as of 2026-08-27: 0.63 over 3 years, with 0.51 over the last year and 0.65 over 5 years.
Is PH a good diversifier for FLS?
To a limited degree. At 0.63 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 0.63 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/fls-vs-ph.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/fls-vs-ph/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: FLS correlations · PH correlations
