POR vs SRE: Correlation
Portland General Electric Co (POR) and Sempra (SRE) show a moderate relationship: their 3-year correlation of weekly returns is 0.57.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are POR and SRE?
Over the past 3 years, POR and SRE moved with a correlation of 0.57, which is moderate. Lately the two have moved closer together, with the 1-year correlation at 0.69 versus 0.57 over 3 years. Over 5 years the correlation is 0.60, and the annualized covariance of weekly returns is 251.0 %².
Within POR's tracked universe of 23 assets, SRE comes in at #16 by 3-year correlation. Correlation aside, the last 12 months split them widely, with POR ahead by 15.0 points (+21.0% versus +6.0%).
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.
POR vs SRE: side by side
| POR (Portland General Electric Co) | SRE (Sempra) | |
|---|---|---|
| 1-year return | +21.0% | +6.0% |
| 5-year return | +20.7% | +50.4% |
| Volatility (ann.) | 18.5% | 23.9% |
| Beta vs S&P 500 | 0.10 | 0.38 |
| Max drawdown (3Y) | -16.3% | -31.6% |
| Market cap | $5.9B | $55.4B |
| P/E (trailing) | 22.2 | 24.7 |
| Dividend yield | 4.24% | 3.06% |
| Sector / category | US Listed | Utilities |
Year-by-year returns
| Year | POR | SRE |
|---|---|---|
| 2022 | -4.0% | +20.3% |
| 2023 | -7.7% | -0.1% |
| 2024 | +5.3% | +21.1% |
| 2025 | +15.4% | +3.9% |
| 2026 | +6.1% | -2.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are POR and SRE good diversifiers for each other?
To a limited degree. At 0.57 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 POR and SRE?
As of 2026-08-27, the correlation of weekly returns between POR and SRE is 0.57 over 3 years, 0.69 over 1 year and 0.60 over 5 years.
Is SRE a good diversifier for POR?
To a limited degree. At 0.57 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 0.57 mean?
A reading of 0.57 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/por-vs-sre.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/por-vs-sre/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: POR correlations · SRE correlations
