ENSG vs HCA: Correlation
How closely do The Ensign Group, Inc. (ENSG) and HCA Healthcare (HCA) trade together? Their weekly returns over three years give a correlation of 0.38, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ENSG and HCA?
Over the past 3 years, ENSG and HCA moved with a correlation of 0.38, which is moderate. Recent behaviour matches the longer record: 0.35 over 1 year against 0.38 over 3. Over 5 years the correlation is 0.40, and the annualized covariance of weekly returns is 245.9 %².
Among the 12 assets we track against ENSG, HCA ranks #6 by 3-year correlation. Twelve-month performance is nearly a tie, at +0.9% for ENSG and +4.2% for HCA.
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.
ENSG vs HCA: side by side
| ENSG (The Ensign Group, Inc.) | HCA (HCA Healthcare) | |
|---|---|---|
| 1-year return | +0.9% | +4.2% |
| 5-year return | +115.6% | +72.5% |
| Volatility (ann.) | 23.8% | 26.9% |
| Beta vs S&P 500 | 0.22 | 0.42 |
| Max drawdown (3Y) | -31.8% | -33.6% |
| Market cap | $10.1B | $90.8B |
| P/E (trailing) | 28.4 | 14.1 |
| Dividend yield | 0.14% | 0.70% |
| Sector / category | US Listed | Health Care |
Year-by-year returns
| Year | ENSG | HCA |
|---|---|---|
| 2022 | +13.0% | -5.6% |
| 2023 | +18.9% | +13.8% |
| 2024 | +18.6% | +11.8% |
| 2025 | +31.3% | +56.7% |
| 2026 | -0.3% | -9.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ENSG and HCA good diversifiers for each other?
A fair diversifier. At 0.38, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between ENSG and HCA?
Using weekly returns as of 2026-08-27: 0.38 over 3 years, with 0.35 over the last year and 0.40 over 5 years.
Is HCA a good diversifier for ENSG?
A fair diversifier. At 0.38, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.38 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/ensg-vs-hca.json
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Related comparisons
Hubs: ENSG correlations · HCA correlations
