ECL vs RCKY: Correlation
Ecolab (ECL) and Rocky Brands, Inc. (RCKY) show a moderate relationship: their 3-year correlation of weekly returns is 0.52.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ECL and RCKY?
On 3 years of weekly data the ECL/RCKY correlation comes out at 0.52, moderate. Little has changed lately, as the 1-year reading of 0.48 lands near the 3-year figure. The 5-year figure is 0.38, and annualized covariance runs at 691.7 %².
Within ECL's tracked universe of 53 assets, RCKY comes in at #22 by 3-year correlation. Correlation aside, the last 12 months split them widely, with RCKY ahead by 47.2 points (+3.1% versus +50.3%). One caveat on sizing: RCKY is 3.5 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.
ECL vs RCKY: side by side
| ECL (Ecolab) | RCKY (Rocky Brands, Inc.) | |
|---|---|---|
| 1-year return | +3.1% | +50.3% |
| 5-year return | +34.0% | +0.6% |
| Volatility (ann.) | 19.5% | 68.1% |
| Beta vs S&P 500 | 0.64 | 1.66 |
| Max drawdown (3Y) | -20.1% | -68.0% |
| Market cap | $80.1B | $0.3B |
| P/E (trailing) | 39.1 | 11.9 |
| Dividend yield | 0.98% | 1.40% |
| Sector / category | Materials | US Listed |
Year-by-year returns
| Year | ECL | RCKY |
|---|---|---|
| 2022 | -37.1% | -39.5% |
| 2023 | +37.9% | +31.4% |
| 2024 | +19.3% | -22.8% |
| 2025 | +13.2% | +31.9% |
| 2026 | +9.5% | +55.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ECL and RCKY good diversifiers for each other?
To a limited degree. At 0.52 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 ECL and RCKY?
As of 2026-08-27, the correlation of weekly returns between ECL and RCKY is 0.52 over 3 years, 0.48 over 1 year and 0.38 over 5 years.
Is RCKY a good diversifier for ECL?
To a limited degree. At 0.52 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 0.52 mean?
A reading of 0.52 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/ecl-vs-rcky.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/ecl-vs-rcky/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ECL correlations · RCKY correlations
