COO vs GRX: Correlation
Measured on weekly returns over the past three years, Cooper Companies (The) (COO) and The Gabelli Healthcare & Wellness Trust (GRX) carry a correlation of 0.52, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are COO and GRX?
On 3 years of weekly data the COO/GRX correlation comes out at 0.52, moderate. Recent behaviour matches the longer record: 0.62 over 1 year against 0.52 over 3. The 5-year figure is 0.56, and annualized covariance runs at 217.1 %².
Within COO's tracked universe of 38 assets, GRX comes in at #11 by 3-year correlation. The last year tells two different stories: GRX led by 18.6 percentage points, -4.3% for COO against +14.3% for GRX. Note the risk asymmetry: COO runs 1.8 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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 GRX: side by side
| COO (Cooper Companies (The)) | GRX (The Gabelli Healthcare & Wellness Trust) | |
|---|---|---|
| 1-year return | -4.3% | +14.3% |
| 5-year return | -36.8% | +1.5% |
| Volatility (ann.) | 27.7% | 15.1% |
| Beta vs S&P 500 | 0.69 | 0.46 |
| Max drawdown (3Y) | -47.0% | -17.9% |
| Market cap | – | – |
| P/E (trailing) | 61.7 | 67.0 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | Health Care | US Listed |
Year-by-year returns
| Year | COO | GRX |
|---|---|---|
| 2022 | -21.1% | -20.0% |
| 2023 | +14.5% | -3.3% |
| 2024 | -2.8% | +9.6% |
| 2025 | -10.8% | +7.0% |
| 2026 | -13.4% | +8.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are COO and GRX 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 COO and GRX?
Using weekly returns as of 2026-08-27: 0.52 over 3 years, with 0.62 over the last year and 0.56 over 5 years.
Is GRX a good diversifier for COO?
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/coo-vs-grx.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/coo-vs-grx/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: COO correlations · GRX correlations
