EHTH vs HCAT: Correlation
eHealth, Inc. (EHTH) and Health Catalyst, Inc (HCAT) show a moderate relationship: their 3-year correlation of weekly returns is 0.39.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are EHTH and HCAT?
Across a 3-year window, the weekly returns of EHTH and HCAT correlate at 0.39, moderate. The past 12 months show a tighter link (0.54) than the 3-year average (0.39). Stretching to 5 years gives 0.33, with an annualized covariance of 1952.7 %².
Within EHTH's tracked universe of 13 assets, HCAT comes in at #4 by 3-year correlation. On 12-month performance HCAT holds a 13.8-point edge, -70.7% against -56.9%.
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.
EHTH vs HCAT: side by side
| EHTH (eHealth, Inc.) | HCAT (Health Catalyst, Inc) | |
|---|---|---|
| 1-year return | -70.7% | -56.9% |
| 5-year return | -97.0% | -97.0% |
| Volatility (ann.) | 70.4% | 71.7% |
| Beta vs S&P 500 | 1.11 | 1.49 |
| Max drawdown (3Y) | -89.8% | -91.6% |
| Market cap | – | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | EHTH | HCAT |
|---|---|---|
| 2022 | -81.0% | -73.2% |
| 2023 | +80.2% | -12.9% |
| 2024 | +7.8% | -23.7% |
| 2025 | -51.1% | -66.2% |
| 2026 | -75.2% | -33.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are EHTH and HCAT good diversifiers for each other?
Reasonably. At 0.39, EHTH and HCAT keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between EHTH and HCAT?
Using weekly returns as of 2026-08-27: 0.39 over 3 years, with 0.54 over the last year and 0.33 over 5 years.
Is HCAT a good diversifier for EHTH?
Reasonably. At 0.39, EHTH and HCAT keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.39 mean?
A reading of 0.39 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/ehth-vs-hcat.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ehth-vs-hcat/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: EHTH correlations · HCAT correlations
