GIB vs WMB: Correlation
How closely do CGI Inc. (GIB) and Williams Companies (WMB) trade together? Their weekly returns over three years give a correlation of -0.24, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GIB and WMB?
On 3 years of weekly data the GIB/WMB correlation comes out at -0.24, negative, meaning they tend to move in opposite directions. The link has loosened recently: the 1-year correlation (-0.48) runs below the 3-year figure (-0.24). The 5-year figure is -0.04, and annualized covariance runs at -136.1 %².
WMB is close to the least connected end of GIB's tracked universe, ranking #24 of 25. Their recent paths diverged sharply: over the last 12 months WMB outperformed by 55.5 percentage points (-22.4% for GIB against +33.1% for WMB).
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.
GIB vs WMB: side by side
| GIB (CGI Inc.) | WMB (Williams Companies) | |
|---|---|---|
| 1-year return | -22.4% | +33.1% |
| 5-year return | -16.0% | +279.9% |
| Volatility (ann.) | 23.3% | 24.0% |
| Beta vs S&P 500 | 0.57 | 0.34 |
| Max drawdown (3Y) | -49.6% | -12.4% |
| Market cap | $15.4B | $90.7B |
| P/E (trailing) | 12.6 | 29.7 |
| Dividend yield | 0.90% | 2.76% |
| Sector / category | US Listed | Energy |
Year-by-year returns
| Year | GIB | WMB |
|---|---|---|
| 2022 | -2.7% | +32.8% |
| 2023 | +24.5% | +11.9% |
| 2024 | +2.1% | +62.3% |
| 2025 | -15.3% | +14.9% |
| 2026 | -18.8% | +25.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GIB and WMB good diversifiers for each other?
Yes. With a correlation of -0.24, GIB and WMB have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between GIB and WMB?
Using weekly returns as of 2026-08-27: -0.24 over 3 years, with -0.48 over the last year and -0.04 over 5 years.
Is WMB a good diversifier for GIB?
Yes. With a correlation of -0.24, GIB and WMB have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.24 mean?
On the −1 to +1 scale, -0.24 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/gib-vs-wmb.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/gib-vs-wmb/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: GIB correlations · WMB correlations
