GPI vs SAH: Correlation
How closely do Group 1 Automotive, Inc. (GPI) and Sonic Automotive, Inc. (SAH) trade together? Their weekly returns over three years give a correlation of 0.74, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GPI and SAH?
On 3 years of weekly data the GPI/SAH correlation comes out at 0.74, strong. Little has changed lately, as the 1-year reading of 0.67 lands near the 3-year figure. The 5-year figure is 0.74, and annualized covariance runs at 957.3 %².
Few assets follow GPI as closely as SAH, which ranks #3 of 10 tracked partners. Correlation aside, the last 12 months split them widely, with SAH ahead by 40.6 points (-44.8% versus -4.2%).
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.
GPI vs SAH: side by side
| GPI (Group 1 Automotive, Inc.) | SAH (Sonic Automotive, Inc.) | |
|---|---|---|
| 1-year return | -44.8% | -4.2% |
| 5-year return | +64.3% | +73.6% |
| Volatility (ann.) | 31.9% | 40.3% |
| Beta vs S&P 500 | 0.68 | 0.91 |
| Max drawdown (3Y) | -48.6% | -33.6% |
| Market cap | $3.1B | $2.5B |
| P/E (trailing) | 10.8 | 12.4 |
| Dividend yield | 0.04% | 1.99% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | GPI | SAH |
|---|---|---|
| 2022 | -6.9% | +1.9% |
| 2023 | +70.2% | +16.7% |
| 2024 | +39.1% | +15.2% |
| 2025 | -6.3% | -0.3% |
| 2026 | -33.1% | +29.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GPI and SAH good diversifiers for each other?
Somewhat, no more. With 0.74 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between GPI and SAH?
As of 2026-08-27, the correlation of weekly returns between GPI and SAH is 0.74 over 3 years, 0.67 over 1 year and 0.74 over 5 years.
Is SAH a good diversifier for GPI?
Somewhat, no more. With 0.74 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.74 mean?
A reading of 0.74 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/gpi-vs-sah.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/gpi-vs-sah/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: GPI correlations · SAH correlations
