ECL vs RPM: Correlation
Measured on weekly returns over the past three years, Ecolab (ECL) and RPM International Inc. (RPM) carry a correlation of 0.64, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ECL and RPM?
Across a 3-year window, the weekly returns of ECL and RPM correlate at 0.64, strong. The relationship has been stable: the 1-year correlation (0.65) sits close to the 3-year figure. Stretching to 5 years gives 0.56, with an annualized covariance of 311.7 %².
By 3-year correlation, RPM places #5 of the 53 assets tracked against ECL. Their recent paths diverged sharply: over the last 12 months ECL outperformed by 17.4 percentage points (+3.1% for ECL against -14.3% for RPM).
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.
ECL vs RPM: side by side
| ECL (Ecolab) | RPM (RPM International Inc.) | |
|---|---|---|
| 1-year return | +3.1% | -14.3% |
| 5-year return | +34.0% | +38.7% |
| Volatility (ann.) | 19.5% | 25.0% |
| Beta vs S&P 500 | 0.64 | 0.85 |
| Max drawdown (3Y) | -20.1% | -32.0% |
| Market cap | $80.1B | $13.5B |
| P/E (trailing) | 39.1 | 20.7 |
| Dividend yield | 0.98% | 1.99% |
| Sector / category | Materials | US Listed |
Year-by-year returns
| Year | ECL | RPM |
|---|---|---|
| 2022 | -37.1% | -1.7% |
| 2023 | +37.9% | +16.8% |
| 2024 | +19.3% | +12.1% |
| 2025 | +13.2% | -13.9% |
| 2026 | +9.5% | +3.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ECL and RPM good diversifiers for each other?
Somewhat, no more. With 0.64 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between ECL and RPM?
The ECL/RPM correlation stands at 0.64 on a 3-year window (1 year: 0.65, 5 years: 0.56), computed from weekly returns as of 2026-08-27.
Is RPM a good diversifier for ECL?
Somewhat, no more. With 0.64 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.64 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/ecl-vs-rpm.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ecl-vs-rpm/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ECL correlations · RPM correlations
