ECL vs GILD: Correlation
Measured on weekly returns over the past three years, Ecolab (ECL) and Gilead Sciences (GILD) carry a correlation of 0.39, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ECL and GILD?
Across a 3-year window, the weekly returns of ECL and GILD correlate at 0.39, moderate. Little has changed lately, as the 1-year reading of 0.36 lands near the 3-year figure. Stretching to 5 years gives 0.36, with an annualized covariance of 185.1 %².
Within ECL's tracked universe of 53 assets, GILD comes in at #40 by 3-year correlation. Correlation aside, the last 12 months split them widely, with GILD ahead by 31.0 points (+3.1% versus +34.1%). The rolling one-year correlation moved between 0.17 and 0.59 over the past three years, a moderate range.
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 GILD: side by side
| ECL (Ecolab) | GILD (Gilead Sciences) | |
|---|---|---|
| 1-year return | +3.1% | +34.1% |
| 5-year return | +34.0% | +148.1% |
| Volatility (ann.) | 19.5% | 24.1% |
| Beta vs S&P 500 | 0.64 | 0.33 |
| Max drawdown (3Y) | -20.1% | -26.6% |
| Market cap | $80.1B | $184.6B |
| P/E (trailing) | 39.1 | – |
| Dividend yield | 0.98% | 2.17% |
| Sector / category | Materials | Health Care |
Year-by-year returns
| Year | ECL | GILD |
|---|---|---|
| 2022 | -37.1% | +23.6% |
| 2023 | +37.9% | -2.0% |
| 2024 | +19.3% | +18.7% |
| 2025 | +13.2% | +36.6% |
| 2026 | +9.5% | +22.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ECL and GILD good diversifiers for each other?
Reasonably. At 0.39, ECL and GILD keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between ECL and GILD?
The ECL/GILD correlation stands at 0.39 on a 3-year window (1 year: 0.36, 5 years: 0.36), computed from weekly returns as of 2026-08-27.
Is GILD a good diversifier for ECL?
Reasonably. At 0.39, ECL and GILD keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.39 mean?
A reading of 0.39 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-gild.json
Embed this badge (it refreshes with the data), with attribution:
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Related comparisons
Hubs: ECL correlations · GILD correlations
