ECL vs RSP: Correlation
Ecolab (ECL) and Invesco S&P 500 Equal Weight ETF (RSP) show a strong relationship: their 3-year correlation of weekly returns is 0.63.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ECL and RSP?
On 3 years of weekly data the ECL/RSP correlation comes out at 0.63, strong. Recent behaviour matches the longer record: 0.57 over 1 year against 0.63 over 3. The 5-year figure is 0.71, and annualized covariance runs at 163.4 %².
By 3-year correlation, RSP places #7 of the 53 assets tracked against ECL. The last year tells two different stories: RSP led by 16.1 percentage points, +3.1% for ECL against +19.2% for RSP. Stability stands out here, with the rolling one-year correlation confined to 0.54 through 0.78.
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 RSP: side by side
| ECL (Ecolab) | RSP (Invesco S&P 500 Equal Weight ETF) | |
|---|---|---|
| 1-year return | +3.1% | +19.2% |
| 5-year return | +34.0% | +53.9% |
| Volatility (ann.) | 19.5% | 13.2% |
| Beta vs S&P 500 | 0.64 | 0.77 |
| Max drawdown (3Y) | -20.1% | -17.8% |
| Market cap | $80.1B | – |
| P/E (trailing) | 39.1 | – |
| Dividend yield | 0.98% | 1.49% |
| Expense ratio | – | 0.20% |
| Assets under management | – | $97.3B |
| Sector / category | Materials | ETF · US Large Cap |
On the fund side, RSP sits in the Large Blend category at Invesco, with $97.3B under management, 505 holdings, a 0.20% expense ratio, a 1.49% trailing dividend yield.
Year-by-year returns
| Year | ECL | RSP |
|---|---|---|
| 2022 | -37.1% | -11.6% |
| 2023 | +37.9% | +13.7% |
| 2024 | +19.3% | +12.8% |
| 2025 | +13.2% | +11.2% |
| 2026 | +9.5% | +16.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Fund exposure
A structural note: 0.21% of RSP is ECL itself, so the fund partly moves with the stock by construction.
Are ECL and RSP good diversifiers for each other?
Somewhat, no more. With 0.63 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between ECL and RSP?
Using weekly returns as of 2026-08-27: 0.63 over 3 years, with 0.57 over the last year and 0.71 over 5 years.
Is RSP a good diversifier for ECL?
Somewhat, no more. With 0.63 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.63 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-rsp.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ecl-vs-rsp/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ECL correlations · RSP correlations
