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CMS vs D: Correlation

Measured on weekly returns over the past three years, CMS Energy (CMS) and Dominion Energy (D) carry a correlation of 0.67, a strong link.

Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology

Correlation (3Y)
0.67
strong
Correlation (1Y)
0.64
last 12 months
Correlation (5Y)
0.72
long-run
Ann. covariance
222.7
%² · weekly, annualized

How correlated are CMS and D?

Over the past 3 years, CMS and D moved with a correlation of 0.67, which is strong. Recent behaviour matches the longer record: 0.64 over 1 year against 0.67 over 3. Over 5 years the correlation is 0.72, and the annualized covariance of weekly returns is 222.7 %².

By 3-year correlation, D places #20 of the 42 assets tracked against CMS. Correlation aside, the last 12 months split them widely, with D ahead by 17.5 points (-2.4% versus +15.1%). On a rolling one-year basis the correlation drifted between 0.51 and 0.79, a moderate band.

+1.0+0.50-0.5-1.020232026-08-27
How the one-year correlation itself moved over the past three years.
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 D: side by side

CMS (CMS Energy)D (Dominion Energy)
1-year return-2.4%+15.1%
5-year return+23.8%+6.1%
Volatility (ann.)16.2%20.5%
Beta vs S&P 500-0.010.18
Max drawdown (3Y)-13.2%-19.1%
Market cap$21.4B$58.5B
P/E (trailing)20.823.2
Dividend yield3.21%3.99%
Sector / categoryUtilitiesUtilities
Lower P/E: CMS 20.8 vs 23.2Higher yield: D 3.99% vs 3.21%Smaller drawdown: CMS -13.2% vs -19.1%Higher 5y return: CMS +23.8% vs +6.1%
-3%0%+26%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. CMS · D

Year-by-year returns

YearCMSD
2022+0.2%-19.1%
2023-5.2%-19.1%
2024+18.6%+20.4%
2025+8.1%+14.0%
2026+0.0%+15.9%

Calendar-year price returns; the current year is year-to-date as of the data date above.

Are CMS and D good diversifiers for each other?

To a limited degree. At 0.67 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.

FAQ

What is the correlation between CMS and D?

The CMS/D correlation stands at 0.67 on a 3-year window (1 year: 0.64, 5 years: 0.72), computed from weekly returns as of 2026-08-27.

Is D a good diversifier for CMS?

To a limited degree. At 0.67 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.

What does a correlation of 0.67 mean?

A reading of 0.67 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

JSON API · no key required
$ curl https://www.pairbook.io/api/v1/pairs/cms-vs-d.json

CMS vs D: 3-year weekly correlation 0.67CMS vs D0.67

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Related comparisons

Hubs: CMS correlations · D correlations