AVA vs POR: Correlation
How closely do Avista Corporation (AVA) and Portland General Electric Co (POR) trade together? Their weekly returns over three years give a correlation of 0.79, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AVA and POR?
On 3 years of weekly data the AVA/POR correlation comes out at 0.79, strong. Recent behaviour matches the longer record: 0.77 over 1 year against 0.79 over 3. The 5-year figure is 0.78, and annualized covariance runs at 287.7 %².
POR is one of the assets that tracks AVA most closely: it ranks #1 out of the 20 assets we track against AVA. The trailing year gives POR the advantage: +6.9% versus +21.0%, a 14.1-point spread.
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 POR: side by side
| AVA (Avista Corporation) | POR (Portland General Electric Co) | |
|---|---|---|
| 1-year return | +6.9% | +21.0% |
| 5-year return | +15.3% | +20.7% |
| Volatility (ann.) | 19.8% | 18.5% |
| Beta vs S&P 500 | 0.05 | 0.10 |
| Max drawdown (3Y) | -14.0% | -16.3% |
| Market cap | $3.2B | $5.9B |
| P/E (trailing) | 13.8 | 22.2 |
| Dividend yield | 5.15% | 4.24% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | AVA | POR |
|---|---|---|
| 2022 | +8.8% | -4.0% |
| 2023 | -15.3% | -7.7% |
| 2024 | +7.8% | +5.3% |
| 2025 | +10.7% | +15.4% |
| 2026 | +1.6% | +6.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AVA and POR good diversifiers for each other?
Only partially. A correlation of 0.79 means AVA and POR share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between AVA and POR?
Using weekly returns as of 2026-08-27: 0.79 over 3 years, with 0.77 over the last year and 0.78 over 5 years.
Is POR a good diversifier for AVA?
Only partially. A correlation of 0.79 means AVA and POR share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.79 mean?
A reading of 0.79 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/ava-vs-por.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ava-vs-por/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: AVA correlations · POR correlations
