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AVA vs BKH: Correlation

Avista Corporation (AVA) and Black Hills Corporation (BKH) show a strong relationship: their 3-year correlation of weekly returns is 0.76.

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

Correlation (3Y)
0.76
strong
Correlation (1Y)
0.69
last 12 months
Correlation (5Y)
0.73
long-run
Ann. covariance
325.1
%² · weekly, annualized

How correlated are AVA and BKH?

On 3 years of weekly data the AVA/BKH correlation comes out at 0.76, strong. The relationship has been stable: the 1-year correlation (0.69) sits close to the 3-year figure. The 5-year figure is 0.73, and annualized covariance runs at 325.1 %².

In AVA's tracked universe of 20 assets, BKH sits right near the top at #3. Their recent paths diverged sharply: over the last 12 months BKH outperformed by 19.6 percentage points (+6.9% for AVA against +26.5% for BKH).

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.

AVA vs BKH: side by side

AVA (Avista Corporation)BKH (Black Hills Corporation)
1-year return+6.9%+26.5%
5-year return+15.3%+27.4%
Volatility (ann.)19.8%21.5%
Beta vs S&P 5000.050.32
Max drawdown (3Y)-14.0%-14.1%
Market cap$3.2B$5.6B
P/E (trailing)13.818.5
Dividend yield5.15%3.74%
Sector / categoryUS ListedUS Listed
Lower P/E: AVA 13.8 vs 18.5Higher yield: AVA 5.15% vs 3.74%Smaller drawdown: AVA -14.0% vs -14.1%Higher 5y return: BKH +27.4% vs +15.3%
-2%0%+31%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. AVA · BKH

Year-by-year returns

YearAVABKH
2022+8.8%+3.1%
2023-15.3%-19.9%
2024+7.8%+13.6%
2025+10.7%+23.9%
2026+1.6%+8.8%

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

Are AVA and BKH good diversifiers for each other?

Somewhat, no more. With 0.76 correlation, most large moves hit both names, and the diversification benefit stays modest.

FAQ

What is the correlation between AVA and BKH?

Using weekly returns as of 2026-08-27: 0.76 over 3 years, with 0.69 over the last year and 0.73 over 5 years.

Is BKH a good diversifier for AVA?

Somewhat, no more. With 0.76 correlation, most large moves hit both names, and the diversification benefit stays modest.

What does a correlation of 0.76 mean?

A reading of 0.76 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/ava-vs-bkh.json

AVA vs BKH: 3-year weekly correlation 0.76AVA vs BKH0.76

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Hubs: AVA correlations · BKH correlations