CTAS vs SIDU: Correlation
Measured on weekly returns over the past three years, Cintas (CTAS) and Sidus Space, Inc. (SIDU) carry a correlation of -0.20, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CTAS and SIDU?
On 3 years of weekly data the CTAS/SIDU correlation comes out at -0.20, negative, meaning they tend to move in opposite directions. The link has tightened recently: the 1-year correlation (-0.08) runs above the 3-year figure (-0.20). The 5-year figure is -0.17, and annualized covariance runs at -872.9 %².
Within CTAS's tracked universe of 38 assets, SIDU comes in at #30 by 3-year correlation. The last year tells two different stories: SIDU led by 91.2 percentage points, -3.3% for CTAS against +87.9% for SIDU. One caveat on sizing: SIDU is 8.2 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.
CTAS vs SIDU: side by side
| CTAS (Cintas) | SIDU (Sidus Space, Inc.) | |
|---|---|---|
| 1-year return | -3.3% | +87.9% |
| 5-year return | +117.4% | -99.8% |
| Volatility (ann.) | 23.2% | 190.7% |
| Beta vs S&P 500 | 0.71 | 1.29 |
| Max drawdown (3Y) | -27.7% | -96.6% |
| Market cap | $81.7B | $0.2B |
| P/E (trailing) | 41.8 | – |
| Dividend yield | 0.87% | 0.00% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | CTAS | SIDU |
|---|---|---|
| 2022 | +3.0% | -89.6% |
| 2023 | +34.8% | -91.9% |
| 2024 | +22.2% | -44.4% |
| 2025 | +3.8% | -35.9% |
| 2026 | +9.4% | -25.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CTAS and SIDU good diversifiers for each other?
Yes: at -0.20, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between CTAS and SIDU?
The CTAS/SIDU correlation stands at -0.20 on a 3-year window (1 year: -0.08, 5 years: -0.17), computed from weekly returns as of 2026-08-27.
Is SIDU a good diversifier for CTAS?
Yes: at -0.20, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.20 mean?
A reading of -0.20 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-sidu.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ctas-vs-sidu/)
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Related comparisons
Hubs: CTAS correlations · SIDU correlations
