ROL vs WSO: Correlation
How closely do Rollins, Inc. (ROL) and Watsco, Inc. (WSO) trade together? Their weekly returns over three years give a correlation of 0.38, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ROL and WSO?
Over the past 3 years, ROL and WSO moved with a correlation of 0.38, which is moderate. The link has loosened recently: the 1-year correlation (0.23) runs below the 3-year figure (0.38). Over 5 years the correlation is 0.41, and the annualized covariance of weekly returns is 282.0 %².
Within ROL's tracked universe of 33 assets, WSO comes in at #6 by 3-year correlation. On 12-month performance WSO holds a 14.9-point edge, -35.7% against -20.8%.
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.
ROL vs WSO: side by side
| ROL (Rollins, Inc.) | WSO (Watsco, Inc.) | |
|---|---|---|
| 1-year return | -35.7% | -20.8% |
| 5-year return | -1.8% | +28.2% |
| Volatility (ann.) | 23.2% | 31.9% |
| Beta vs S&P 500 | 0.51 | 1.05 |
| Max drawdown (3Y) | -44.6% | -44.1% |
| Market cap | $17.3B | $12.9B |
| P/E (trailing) | 32.7 | 27.0 |
| Dividend yield | 1.94% | 3.91% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | ROL | WSO |
|---|---|---|
| 2022 | +8.1% | -17.7% |
| 2023 | +21.2% | +77.0% |
| 2024 | +7.6% | +13.2% |
| 2025 | +31.1% | -27.0% |
| 2026 | -39.4% | -4.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ROL and WSO good diversifiers for each other?
Reasonably. At 0.38, ROL and WSO keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between ROL and WSO?
The ROL/WSO correlation stands at 0.38 on a 3-year window (1 year: 0.23, 5 years: 0.41), computed from weekly returns as of 2026-08-27.
Is WSO a good diversifier for ROL?
Reasonably. At 0.38, ROL and WSO keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.38 mean?
A reading of 0.38 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/rol-vs-wso.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/rol-vs-wso/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ROL correlations · WSO correlations
