OGS vs SR: Correlation
How closely do ONE Gas, Inc. (OGS) and Spire Inc. (SR) trade together? Their weekly returns over three years give a correlation of 0.78, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are OGS and SR?
Over the past 3 years, OGS and SR moved with a correlation of 0.78, which is strong. Recent behaviour matches the longer record: 0.84 over 1 year against 0.78 over 3. Over 5 years the correlation is 0.79, and the annualized covariance of weekly returns is 308.6 %².
SR is one of the assets that tracks OGS most closely: it ranks #3 out of the 14 assets we track against OGS. Twelve-month performance is nearly a tie, at +7.5% for OGS and +11.6% for SR.
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.
OGS vs SR: side by side
| OGS (ONE Gas, Inc.) | SR (Spire Inc.) | |
|---|---|---|
| 1-year return | +7.5% | +11.6% |
| 5-year return | +32.3% | +53.3% |
| Volatility (ann.) | 20.2% | 19.6% |
| Beta vs S&P 500 | 0.17 | 0.17 |
| Max drawdown (3Y) | -23.0% | -19.4% |
| Market cap | $5.0B | $4.9B |
| P/E (trailing) | 17.5 | 18.2 |
| Dividend yield | 3.33% | 3.90% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | OGS | SR |
|---|---|---|
| 2022 | +0.6% | +9.8% |
| 2023 | -12.8% | -5.3% |
| 2024 | +13.1% | +14.1% |
| 2025 | +15.6% | +27.1% |
| 2026 | +5.6% | +1.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are OGS and SR good diversifiers for each other?
Somewhat, no more. With 0.78 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between OGS and SR?
Using weekly returns as of 2026-08-27: 0.78 over 3 years, with 0.84 over the last year and 0.79 over 5 years.
Is SR a good diversifier for OGS?
Somewhat, no more. With 0.78 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.78 mean?
A reading of 0.78 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/ogs-vs-sr.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/ogs-vs-sr/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: OGS correlations · SR correlations
