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LNT vs NI: Correlation

Alliant Energy (LNT) and NiSource (NI) show a very strong relationship: their 3-year correlation of weekly returns is 0.80.

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

Correlation (3Y)
0.80
very strong
Correlation (1Y)
0.84
last 12 months
Correlation (5Y)
0.82
long-run
Ann. covariance
249.3
%² · weekly, annualized

How correlated are LNT and NI?

Over the past 3 years, LNT and NI moved with a correlation of 0.80, which is very strong, meaning they move nearly in lockstep. Little has changed lately, as the 1-year reading of 0.84 lands near the 3-year figure. Over 5 years the correlation is 0.82, and the annualized covariance of weekly returns is 249.3 %².

By 3-year correlation, NI places #6 of the 43 assets tracked against LNT. Over the last 12 months LNT came out ahead by 7.8 percentage points (+6.9% against -0.9%). The rolling one-year correlation stayed in a tight band between 0.69 and 0.86 over the past three years, which points to a structural rather than episodic relationship.

+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.

LNT vs NI: side by side

LNT (Alliant Energy)NI (NiSource)
1-year return+6.9%-0.9%
5-year return+31.9%+94.6%
Volatility (ann.)17.5%17.8%
Beta vs S&P 5000.090.26
Max drawdown (3Y)-12.4%-16.7%
Market cap$17.7B$19.6B
P/E (trailing)21.821.9
Dividend yield3.03%1.41%
Sector / categoryUtilitiesUtilities
Lower P/E: LNT 21.8 vs 21.9Higher yield: LNT 3.03% vs 1.41%Smaller drawdown: LNT -12.4% vs -16.7%Higher 5y return: NI +94.6% vs +31.9%
-1%0%+24%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. LNT · NI

Year-by-year returns

YearLNTNI
2022-7.4%+2.7%
2023-3.8%+0.5%
2024+19.5%+43.5%
2025+13.5%+16.8%
2026+7.4%+0.0%

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

Are LNT and NI good diversifiers for each other?

No: a correlation of 0.80 means LNT and NI tend to fall together, which is precisely when diversification is supposed to help.

FAQ

What is the correlation between LNT and NI?

Using weekly returns as of 2026-08-27: 0.80 over 3 years, with 0.84 over the last year and 0.82 over 5 years.

Is NI a good diversifier for LNT?

No: a correlation of 0.80 means LNT and NI tend to fall together, which is precisely when diversification is supposed to help.

What does a correlation of 0.80 mean?

A reading of 0.80 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/lnt-vs-ni.json

LNT vs NI: 3-year weekly correlation 0.80LNT vs NI0.80

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Hubs: LNT correlations · NI correlations