CTAS vs SUNE: Correlation
How closely do Cintas (CTAS) and SUNation Energy, Inc. (SUNE) trade together? Their weekly returns over three years give a correlation of -0.28, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CTAS and SUNE?
On 3 years of weekly data the CTAS/SUNE correlation comes out at -0.28, negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.43 versus -0.28 over 3 years. The 5-year figure is -0.11, and annualized covariance runs at -1233.3 %².
SUNE is close to the least connected end of CTAS's tracked universe, ranking #35 of 38. Their recent paths diverged sharply: over the last 12 months SUNE outperformed by 50.0 percentage points (-3.3% for CTAS against +46.7% for SUNE). Risk is not evenly split, since SUNE carries 8.2 times the volatility of the other side.
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.
CTAS vs SUNE: side by side
| CTAS (Cintas) | SUNE (SUNation Energy, Inc.) | |
|---|---|---|
| 1-year return | -3.3% | +46.7% |
| 5-year return | +117.4% | -100.0% |
| Volatility (ann.) | 23.2% | 189.9% |
| Beta vs S&P 500 | 0.71 | -0.81 |
| Max drawdown (3Y) | -27.7% | -100.0% |
| Market cap | $81.7B | – |
| P/E (trailing) | 41.8 | 1.1 |
| Dividend yield | 0.87% | 0.00% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | CTAS | SUNE |
|---|---|---|
| 2022 | +3.0% | -75.7% |
| 2023 | +34.8% | -74.7% |
| 2024 | +22.2% | -99.4% |
| 2025 | +3.8% | -99.8% |
| 2026 | +9.4% | +113.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CTAS and SUNE good diversifiers for each other?
Yes: at -0.28, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between CTAS and SUNE?
As of 2026-08-27, the correlation of weekly returns between CTAS and SUNE is -0.28 over 3 years, -0.43 over 1 year and -0.11 over 5 years.
Is SUNE a good diversifier for CTAS?
Yes: at -0.28, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.28 mean?
A reading of -0.28 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/ctas-vs-sune.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ctas-vs-sune/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: CTAS correlations · SUNE correlations
