COO vs RSP: Correlation
Measured on weekly returns over the past three years, Cooper Companies (The) (COO) and Invesco S&P 500 Equal Weight ETF (RSP) carry a correlation of 0.58, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are COO and RSP?
Over the past 3 years, COO and RSP moved with a correlation of 0.58, which is moderate. Recent behaviour matches the longer record: 0.48 over 1 year against 0.58 over 3. Over 5 years the correlation is 0.64, and the annualized covariance of weekly returns is 211.1 %².
Few assets follow COO as closely as RSP, which ranks #3 of 38 tracked partners. Correlation aside, the last 12 months split them widely, with RSP ahead by 23.5 points (-4.3% versus +19.2%). The rolling one-year correlation moved between 0.46 and 0.72 over the past three years, a moderate range. One caveat on sizing: COO is 2.1 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.
COO vs RSP: side by side
| COO (Cooper Companies (The)) | RSP (Invesco S&P 500 Equal Weight ETF) | |
|---|---|---|
| 1-year return | -4.3% | +19.2% |
| 5-year return | -36.8% | +53.9% |
| Volatility (ann.) | 27.7% | 13.2% |
| Beta vs S&P 500 | 0.69 | 0.77 |
| Max drawdown (3Y) | -47.0% | -17.8% |
| Market cap | – | – |
| P/E (trailing) | 61.7 | – |
| Dividend yield | 0.00% | 1.49% |
| Expense ratio | – | 0.20% |
| Assets under management | – | $97.3B |
| Sector / category | Health Care | 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 | COO | RSP |
|---|---|---|
| 2022 | -21.1% | -11.6% |
| 2023 | +14.5% | +13.7% |
| 2024 | -2.8% | +12.8% |
| 2025 | -10.8% | +11.2% |
| 2026 | -13.4% | +16.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Fund exposure
A structural note: 0.2% of RSP is COO itself, so the fund partly moves with the stock by construction.
Are COO and RSP good diversifiers for each other?
Somewhat, no more. With 0.58 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between COO and RSP?
As of 2026-08-27, the correlation of weekly returns between COO and RSP is 0.58 over 3 years, 0.48 over 1 year and 0.64 over 5 years.
Is RSP a good diversifier for COO?
Somewhat, no more. With 0.58 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.58 mean?
On the −1 to +1 scale, 0.58 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/coo-vs-rsp.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/coo-vs-rsp/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: COO correlations · RSP correlations
