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OKE vs WMB: Correlation

Oneok (OKE) and Williams Companies (WMB) show a strong relationship: their 3-year correlation of weekly returns is 0.70.

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

Correlation (3Y)
0.70
strong
Correlation (1Y)
0.64
last 12 months
Correlation (5Y)
0.75
long-run
Ann. covariance
485.5
%² · weekly, annualized

How correlated are OKE and WMB?

Over the past 3 years, OKE and WMB moved with a correlation of 0.70, which is strong. The relationship has been stable: the 1-year correlation (0.64) sits close to the 3-year figure. Over 5 years the correlation is 0.75, and the annualized covariance of weekly returns is 485.5 %².

By 3-year correlation, WMB places #14 of the 38 assets tracked against OKE. Twelve-month performance is nearly a tie, at +33.0% for OKE and +33.1% for WMB. Across three years, the rolling one-year figure varied moderately, from 0.39 to 0.87.

+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.

OKE vs WMB: side by side

OKE (Oneok)WMB (Williams Companies)
1-year return+33.0%+33.1%
5-year return+134.0%+279.9%
Volatility (ann.)28.7%24.0%
Beta vs S&P 5000.420.34
Max drawdown (3Y)-42.2%-12.4%
Market cap$59.7B$90.7B
P/E (trailing)16.429.7
Dividend yield4.47%2.76%
Sector / categoryEnergyEnergy
Lower P/E: OKE 16.4 vs 29.7Higher yield: OKE 4.47% vs 2.76%Smaller drawdown: WMB -12.4% vs -42.2%Higher 5y return: WMB +279.9% vs +134.0%
-8%0%+40%2025-09-052026-08-27
Twelve months of weekly closes, each series rebased to 100. OKE · WMB

Year-by-year returns

YearOKEWMB
2022+18.9%+32.8%
2023+13.2%+11.9%
2024+50.1%+62.3%
2025-22.9%+14.9%
2026+33.8%+25.2%

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

Are OKE and WMB good diversifiers for each other?

To a limited degree. At 0.70 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 OKE and WMB?

Using weekly returns as of 2026-08-27: 0.70 over 3 years, with 0.64 over the last year and 0.75 over 5 years.

Is WMB a good diversifier for OKE?

To a limited degree. At 0.70 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 0.70 mean?

Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.

Use this data

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

OKE vs WMB: 3-year weekly correlation 0.70OKE vs WMB0.70

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Hubs: OKE correlations · WMB correlations