PairBook
HomeDTE › DTE vs NI

DTE vs NI: Correlation

DTE Energy (DTE) and NiSource (NI) show a strong relationship: their 3-year correlation of weekly returns is 0.77.

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

Correlation (3Y)
0.77
strong
Correlation (1Y)
0.81
last 12 months
Correlation (5Y)
0.80
long-run
Ann. covariance
235.7
%² · weekly, annualized

How correlated are DTE and NI?

Across a 3-year window, the weekly returns of DTE and NI correlate at 0.77, strong. Little has changed lately, as the 1-year reading of 0.81 lands near the 3-year figure. Stretching to 5 years gives 0.80, with an annualized covariance of 235.7 %².

Within DTE's tracked universe of 44 assets, NI comes in at #7 by 3-year correlation. Their 12-month results are close: +1.7% for DTE against -0.9% for NI. The rolling one-year correlation moved between 0.59 and 0.87 over the past three years, a moderate range.

+1.0+0.50-0.5-1.020232026-08-27
One-year correlation, rolled weekly across the last 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.

DTE vs NI: side by side

DTE (DTE Energy)NI (NiSource)
1-year return+1.7%-0.9%
5-year return+33.3%+94.6%
Volatility (ann.)17.1%17.8%
Beta vs S&P 5000.070.26
Max drawdown (3Y)-12.4%-16.7%
Market cap$28.3B$19.6B
P/E (trailing)21.821.9
Dividend yield3.39%1.41%
Sector / categoryUtilitiesUtilities
Lower P/E: DTE 21.8 vs 21.9Higher yield: DTE 3.39% vs 1.41%Smaller drawdown: DTE -12.4% vs -16.7%Higher 5y return: NI +94.6% vs +33.3%
-5%0%+24%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. DTE · NI

Year-by-year returns

YearDTENI
2022+1.2%+2.7%
2023-2.8%+0.5%
2024+13.5%+43.5%
2025+10.4%+16.8%
2026+7.3%+0.0%

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

Are DTE and NI good diversifiers for each other?

To a limited degree. At 0.77 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 DTE and NI?

The DTE/NI correlation stands at 0.77 on a 3-year window (1 year: 0.81, 5 years: 0.80), computed from weekly returns as of 2026-08-27.

Is NI a good diversifier for DTE?

To a limited degree. At 0.77 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 0.77 mean?

A reading of 0.77 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/dte-vs-ni.json

DTE vs NI: 3-year weekly correlation 0.77DTE vs NI0.77

Drop this badge in a README or notebook; it updates with the data:

[![DTE vs NI correlation](https://www.pairbook.io/api/v1/badge/dte-vs-ni.svg)](https://www.pairbook.io/pair/dte-vs-ni/)

Free with attribution; caching and terms are described in the API documentation.

Related comparisons

Hubs: DTE correlations · NI correlations