ACHC vs XRAY: Correlation
Acadia Healthcare Company, Inc. (ACHC) and DENTSPLY SIRONA Inc. (XRAY) show a moderate relationship: their 3-year correlation of weekly returns is 0.38.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACHC and XRAY?
Across a 3-year window, the weekly returns of ACHC and XRAY correlate at 0.38, moderate. The relationship has been stable: the 1-year correlation (0.39) sits close to the 3-year figure. Stretching to 5 years gives 0.36, with an annualized covariance of 882.4 %².
In ACHC's tracked universe of 10 assets, XRAY sits right near the top at #2. The last year tells two different stories: ACHC led by 57.0 percentage points, +36.2% for ACHC against -20.8% for XRAY.
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 XRAY: side by side
| ACHC (Acadia Healthcare Company, Inc.) | XRAY (DENTSPLY SIRONA Inc.) | |
|---|---|---|
| 1-year return | +36.2% | -20.8% |
| 5-year return | -54.4% | -80.0% |
| Volatility (ann.) | 58.4% | 39.4% |
| Beta vs S&P 500 | 0.62 | 0.54 |
| Max drawdown (3Y) | -86.6% | -72.3% |
| Market cap | $2.8B | $2.2B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 2.93% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ACHC | XRAY |
|---|---|---|
| 2022 | +35.6% | -42.1% |
| 2023 | -5.5% | +13.5% |
| 2024 | -49.0% | -45.3% |
| 2025 | -64.2% | -36.8% |
| 2026 | +113.0% | -3.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACHC and XRAY good diversifiers for each other?
Reasonably. At 0.38, ACHC and XRAY keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between ACHC and XRAY?
The ACHC/XRAY correlation stands at 0.38 on a 3-year window (1 year: 0.39, 5 years: 0.36), computed from weekly returns as of 2026-08-27.
Is XRAY a good diversifier for ACHC?
Reasonably. At 0.38, ACHC and XRAY keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.38 mean?
On the −1 to +1 scale, 0.38 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/achc-vs-xray.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/achc-vs-xray/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ACHC correlations · XRAY correlations
