CMS vs DTE: Correlation
How closely do CMS Energy (CMS) and DTE Energy (DTE) trade together? Their weekly returns over three years give a correlation of 0.85, which is very strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CMS and DTE?
Over the past 3 years, CMS and DTE moved with a correlation of 0.85, which is very strong, meaning they move nearly in lockstep. The relationship has been stable: the 1-year correlation (0.88) sits close to the 3-year figure. Over 5 years the correlation is 0.88, and the annualized covariance of weekly returns is 235.8 %².
DTE is one of the assets that tracks CMS most closely: it ranks #1 out of the 42 assets we track against CMS. Neither side won the trailing year by much: -2.4% against +1.7%. The link looks structural: the rolling one-year correlation barely moved, holding between 0.70 and 0.92.
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 DTE: side by side
| CMS (CMS Energy) | DTE (DTE Energy) | |
|---|---|---|
| 1-year return | -2.4% | +1.7% |
| 5-year return | +23.8% | +33.3% |
| Volatility (ann.) | 16.2% | 17.1% |
| Beta vs S&P 500 | -0.01 | 0.07 |
| Max drawdown (3Y) | -13.2% | -12.4% |
| Market cap | $21.4B | $28.3B |
| P/E (trailing) | 20.8 | 21.8 |
| Dividend yield | 3.21% | 3.39% |
| Sector / category | Utilities | Utilities |
Year-by-year returns
| Year | CMS | DTE |
|---|---|---|
| 2022 | +0.2% | +1.2% |
| 2023 | -5.2% | -2.8% |
| 2024 | +18.6% | +13.5% |
| 2025 | +8.1% | +10.4% |
| 2026 | +0.0% | +7.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CMS and DTE good diversifiers for each other?
No: a correlation of 0.85 means CMS and DTE tend to fall together, which is precisely when diversification is supposed to help.
FAQ
What is the correlation between CMS and DTE?
The CMS/DTE correlation stands at 0.85 on a 3-year window (1 year: 0.88, 5 years: 0.88), computed from weekly returns as of 2026-08-27.
Is DTE a good diversifier for CMS?
No: a correlation of 0.85 means CMS and DTE tend to fall together, which is precisely when diversification is supposed to help.
What does a correlation of 0.85 mean?
A reading of 0.85 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/cms-vs-dte.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/cms-vs-dte/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: CMS correlations · DTE correlations
