ACHC vs ORGO: Correlation
Acadia Healthcare Company, Inc. (ACHC) and Organogenesis Holdings Inc. - Class A (ORGO) show a negative relationship: their 3-year correlation of weekly returns is -0.18.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACHC and ORGO?
Across a 3-year window, the weekly returns of ACHC and ORGO correlate at -0.18, negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.20) sits close to the 3-year figure. Stretching to 5 years gives -0.11, with an annualized covariance of -966.1 %².
ORGO is close to the least connected end of ACHC's tracked universe, ranking #8 of 10. Their recent paths diverged sharply: over the last 12 months ACHC outperformed by 100.2 percentage points (+36.2% for ACHC against -64.0% for ORGO). Note the risk asymmetry: ORGO runs 1.5 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.
ACHC vs ORGO: side by side
| ACHC (Acadia Healthcare Company, Inc.) | ORGO (Organogenesis Holdings Inc. - Class A) | |
|---|---|---|
| 1-year return | +36.2% | -64.0% |
| 5-year return | -54.4% | -89.3% |
| Volatility (ann.) | 58.4% | 90.0% |
| Beta vs S&P 500 | 0.62 | 1.25 |
| Max drawdown (3Y) | -86.6% | -74.5% |
| Market cap | $2.8B | $0.2B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ACHC | ORGO |
|---|---|---|
| 2022 | +35.6% | -70.9% |
| 2023 | -5.5% | +52.0% |
| 2024 | -49.0% | -21.8% |
| 2025 | -64.2% | +61.9% |
| 2026 | +113.0% | -66.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACHC and ORGO good diversifiers for each other?
Yes. With a correlation of -0.18, ACHC and ORGO have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between ACHC and ORGO?
As of 2026-08-27, the correlation of weekly returns between ACHC and ORGO is -0.18 over 3 years, -0.20 over 1 year and -0.11 over 5 years.
Is ORGO a good diversifier for ACHC?
Yes. With a correlation of -0.18, ACHC and ORGO have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.18 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/achc-vs-orgo.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/achc-vs-orgo/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ACHC correlations · ORGO correlations
