CET vs ROL: Correlation
Central Securities Corporation (CET) and Rollins, Inc. (ROL) show a moderate relationship: their 3-year correlation of weekly returns is 0.40.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CET and ROL?
Across a 3-year window, the weekly returns of CET and ROL correlate at 0.40, moderate. Little has changed lately, as the 1-year reading of 0.40 lands near the 3-year figure. Stretching to 5 years gives 0.42, with an annualized covariance of 118.8 %².
By 3-year correlation, ROL places #33 of the 38 assets tracked against CET. Their recent paths diverged sharply: over the last 12 months CET outperformed by 51.4 percentage points (+15.7% for CET against -35.7% for ROL). One caveat on sizing: ROL is 1.8 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.
CET vs ROL: side by side
| CET (Central Securities Corporation) | ROL (Rollins, Inc.) | |
|---|---|---|
| 1-year return | +15.7% | -35.7% |
| 5-year return | +73.3% | -1.8% |
| Volatility (ann.) | 12.8% | 23.2% |
| Beta vs S&P 500 | 0.78 | 0.51 |
| Max drawdown (3Y) | -15.4% | -44.6% |
| Market cap | – | $17.3B |
| P/E (trailing) | 7.3 | 32.7 |
| Dividend yield | 5.03% | 1.94% |
| Sector / category | US Listed | Industrials |
Year-by-year returns
| Year | CET | ROL |
|---|---|---|
| 2022 | -19.7% | +8.1% |
| 2023 | +19.2% | +21.2% |
| 2024 | +26.8% | +7.6% |
| 2025 | +17.2% | +31.1% |
| 2026 | +8.3% | -39.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CET and ROL good diversifiers for each other?
A fair diversifier. At 0.40, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between CET and ROL?
The CET/ROL correlation stands at 0.40 on a 3-year window (1 year: 0.40, 5 years: 0.42), computed from weekly returns as of 2026-08-27.
Is ROL a good diversifier for CET?
A fair diversifier. At 0.40, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.40 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/cet-vs-rol.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/cet-vs-rol/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: CET correlations · ROL correlations
