GRX vs VRTX: Correlation
The Gabelli Healthcare & Wellness Trust (GRX) and Vertex Pharmaceuticals (VRTX) 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 GRX and VRTX?
On 3 years of weekly data the GRX/VRTX correlation comes out at 0.52, moderate. The relationship has been stable: the 1-year correlation (0.61) sits close to the 3-year figure. The 5-year figure is 0.45, and annualized covariance runs at 238.2 %².
Among the 26 assets we track against GRX, VRTX ranks #8 by 3-year correlation. The last year tells two different stories: VRTX led by 26.4 percentage points, +14.3% for GRX against +40.7% for VRTX. Note the risk asymmetry: VRTX runs 2.0 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.
GRX vs VRTX: side by side
| GRX (The Gabelli Healthcare & Wellness Trust) | VRTX (Vertex Pharmaceuticals) | |
|---|---|---|
| 1-year return | +14.3% | +40.7% |
| 5-year return | +1.5% | +174.5% |
| Volatility (ann.) | 15.1% | 30.3% |
| Beta vs S&P 500 | 0.46 | 0.55 |
| Max drawdown (3Y) | -17.9% | -29.1% |
| Market cap | – | $138.8B |
| P/E (trailing) | 67.0 | 31.9 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | Health Care |
Year-by-year returns
| Year | GRX | VRTX |
|---|---|---|
| 2022 | -20.0% | +31.5% |
| 2023 | -3.3% | +40.9% |
| 2024 | +9.6% | -1.0% |
| 2025 | +7.0% | +12.6% |
| 2026 | +8.3% | +20.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GRX and VRTX 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 GRX and VRTX?
As of 2026-08-27, the correlation of weekly returns between GRX and VRTX is 0.52 over 3 years, 0.61 over 1 year and 0.45 over 5 years.
Is VRTX a good diversifier for GRX?
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?
On the −1 to +1 scale, 0.52 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/grx-vs-vrtx.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/grx-vs-vrtx/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: GRX correlations · VRTX correlations
