HSTM vs IART: Correlation
HealthStream, Inc. (HSTM) and Integra LifeSciences Holdings Corporation (IART) show a moderate relationship: their 3-year correlation of weekly returns is 0.45.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are HSTM and IART?
Across a 3-year window, the weekly returns of HSTM and IART correlate at 0.45, moderate. The past 12 months show a weaker link (0.34) than the 3-year average (0.45). Stretching to 5 years gives 0.43, with an annualized covariance of 717.7 %².
Among the 13 assets we track against HSTM, IART ranks #5 by 3-year correlation. Over the last 12 months IART came out ahead by 11.1 percentage points (+2.2% against +13.3%). One caveat on sizing: IART 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.
HSTM vs IART: side by side
| HSTM (HealthStream, Inc.) | IART (Integra LifeSciences Holdings Corporation) | |
|---|---|---|
| 1-year return | +2.2% | +13.3% |
| 5-year return | -1.6% | -77.0% |
| Volatility (ann.) | 27.4% | 58.0% |
| Beta vs S&P 500 | 0.54 | 1.66 |
| Max drawdown (3Y) | -41.4% | -80.3% |
| Market cap | $0.8B | $1.3B |
| P/E (trailing) | 40.0 | – |
| Dividend yield | 0.46% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | HSTM | IART |
|---|---|---|
| 2022 | -5.8% | -16.3% |
| 2023 | +9.3% | -22.3% |
| 2024 | +18.1% | -47.9% |
| 2025 | -27.1% | -45.2% |
| 2026 | +25.5% | +35.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are HSTM and IART good diversifiers for each other?
A fair diversifier. At 0.45, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between HSTM and IART?
As of 2026-08-27, the correlation of weekly returns between HSTM and IART is 0.45 over 3 years, 0.34 over 1 year and 0.43 over 5 years.
Is IART a good diversifier for HSTM?
A fair diversifier. At 0.45, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.45 mean?
A reading of 0.45 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/hstm-vs-iart.json
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[](https://www.pairbook.io/pair/hstm-vs-iart/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: HSTM correlations · IART correlations
