IMO vs SU: Correlation
Imperial Oil Limited (IMO) and Suncor Energy Inc. (SU) show a very strong relationship: their 3-year correlation of weekly returns is 0.83.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IMO and SU?
Over the past 3 years, IMO and SU moved with a correlation of 0.83, which is very strong, meaning they move nearly in lockstep. The relationship has been stable: the 1-year correlation (0.81) sits close to the 3-year figure. Over 5 years the correlation is 0.80, and the annualized covariance of weekly returns is 692.7 %².
Few assets follow IMO as closely as SU, which ranks #1 of 12 tracked partners. Over the last 12 months SU came out ahead by 13.9 percentage points (+50.4% against +64.3%).
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.
IMO vs SU: side by side
| IMO (Imperial Oil Limited) | SU (Suncor Energy Inc.) | |
|---|---|---|
| 1-year return | +50.4% | +64.3% |
| 5-year return | +468.0% | +325.4% |
| Volatility (ann.) | 28.8% | 29.1% |
| Beta vs S&P 500 | 0.24 | 0.13 |
| Max drawdown (3Y) | -22.9% | -22.7% |
| Market cap | – | $78.4B |
| P/E (trailing) | 21.2 | 12.1 |
| Dividend yield | 2.42% | 3.61% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | IMO | SU |
|---|---|---|
| 2022 | +38.0% | +32.3% |
| 2023 | +20.6% | +6.0% |
| 2024 | +10.5% | +16.2% |
| 2025 | +43.8% | +27.1% |
| 2026 | +54.8% | +51.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are IMO and SU good diversifiers for each other?
No. With a correlation of 0.83, IMO and SU move nearly in lockstep, so holding both adds very little diversification.
FAQ
What is the correlation between IMO and SU?
The IMO/SU correlation stands at 0.83 on a 3-year window (1 year: 0.81, 5 years: 0.80), computed from weekly returns as of 2026-08-27.
Is SU a good diversifier for IMO?
No. With a correlation of 0.83, IMO and SU move nearly in lockstep, so holding both adds very little diversification.
What does a correlation of 0.83 mean?
A reading of 0.83 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
$ curl https://www.pairbook.io/api/v1/pairs/imo-vs-su.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/imo-vs-su/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: IMO correlations · SU correlations
