CMS vs RPD: Correlation
CMS Energy (CMS) and Rapid7, Inc. (RPD) show a negative relationship: their 3-year correlation of weekly returns is -0.23.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CMS and RPD?
Over the past 3 years, CMS and RPD moved with a correlation of -0.23, which is negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.26) sits close to the 3-year figure. Over 5 years the correlation is -0.02, and the annualized covariance of weekly returns is -211.4 %².
Among the 42 assets we track against CMS, RPD ranks #34 by 3-year correlation. Correlation aside, the last 12 months split them widely, with CMS ahead by 32.3 points (-2.4% versus -34.7%). One caveat on sizing: RPD is 3.5 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.
CMS vs RPD: side by side
| CMS (CMS Energy) | RPD (Rapid7, Inc.) | |
|---|---|---|
| 1-year return | -2.4% | -34.7% |
| 5-year return | +23.8% | -88.9% |
| Volatility (ann.) | 16.2% | 56.3% |
| Beta vs S&P 500 | -0.01 | 1.42 |
| Max drawdown (3Y) | -13.2% | -91.8% |
| Market cap | $21.4B | $0.9B |
| P/E (trailing) | 20.8 | 37.5 |
| Dividend yield | 3.21% | 0.00% |
| Sector / category | Utilities | US Listed |
Year-by-year returns
| Year | CMS | RPD |
|---|---|---|
| 2022 | +0.2% | -71.1% |
| 2023 | -5.2% | +68.0% |
| 2024 | +18.6% | -29.5% |
| 2025 | +8.1% | -62.2% |
| 2026 | +0.0% | -11.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CMS and RPD good diversifiers for each other?
Yes. With a correlation of -0.23, CMS and RPD have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between CMS and RPD?
As of 2026-08-27, the correlation of weekly returns between CMS and RPD is -0.23 over 3 years, -0.26 over 1 year and -0.02 over 5 years.
Is RPD a good diversifier for CMS?
Yes. With a correlation of -0.23, CMS and RPD have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.23 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/cms-vs-rpd.json
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[](https://www.pairbook.io/pair/cms-vs-rpd/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: CMS correlations · RPD correlations
