CMPX vs OPCH: Correlation
Compass Therapeutics, Inc. (CMPX) and Option Care Health, Inc. (OPCH) 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 CMPX and OPCH?
Across a 3-year window, the weekly returns of CMPX and OPCH correlate at 0.45, moderate. The link has tightened recently: the 1-year correlation (0.59) runs above the 3-year figure (0.45). Stretching to 5 years gives 0.35, with an annualized covariance of 1432.2 %².
In CMPX's tracked universe of 10 assets, OPCH sits right near the top at #1. On 12-month performance OPCH holds a 7.1-point edge, -23.2% against -16.1%. Note the risk asymmetry: CMPX runs 2.3 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.
CMPX vs OPCH: side by side
| CMPX (Compass Therapeutics, Inc.) | OPCH (Option Care Health, Inc.) | |
|---|---|---|
| 1-year return | -23.2% | -16.1% |
| 5-year return | -37.8% | -8.7% |
| Volatility (ann.) | 85.8% | 37.1% |
| Beta vs S&P 500 | 1.92 | 0.56 |
| Max drawdown (3Y) | -75.0% | -46.7% |
| Market cap | $0.5B | $3.6B |
| P/E (trailing) | – | 18.2 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CMPX | OPCH |
|---|---|---|
| 2022 | +58.7% | +5.8% |
| 2023 | -69.0% | +12.0% |
| 2024 | -7.1% | -31.1% |
| 2025 | +270.3% | +37.3% |
| 2026 | -53.1% | -24.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CMPX and OPCH good diversifiers for each other?
Reasonably. At 0.45, CMPX and OPCH keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between CMPX and OPCH?
The CMPX/OPCH correlation stands at 0.45 on a 3-year window (1 year: 0.59, 5 years: 0.35), computed from weekly returns as of 2026-08-27.
Is OPCH a good diversifier for CMPX?
Reasonably. At 0.45, CMPX and OPCH keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.45 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/cmpx-vs-opch.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/cmpx-vs-opch/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: CMPX correlations · OPCH correlations
