AOS vs GRBK: Correlation
Measured on weekly returns over the past three years, A. O. Smith (AOS) and Green Brick Partners, Inc. (GRBK) carry a correlation of 0.64, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AOS and GRBK?
On 3 years of weekly data the AOS/GRBK correlation comes out at 0.64, strong. The relationship has been stable: the 1-year correlation (0.72) sits close to the 3-year figure. The 5-year figure is 0.60, and annualized covariance runs at 557.1 %².
Among the 33 assets we track against AOS, GRBK ranks #6 by 3-year correlation. Correlation aside, the last 12 months split them widely, with GRBK ahead by 17.1 points (-12.6% versus +4.5%). One caveat on sizing: GRBK is 1.6 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
AOS vs GRBK: side by side
| AOS (A. O. Smith) | GRBK (Green Brick Partners, Inc.) | |
|---|---|---|
| 1-year return | -12.6% | +4.5% |
| 5-year return | -6.7% | +186.8% |
| Volatility (ann.) | 23.5% | 37.3% |
| Beta vs S&P 500 | 0.67 | 1.07 |
| Max drawdown (3Y) | -36.9% | -36.1% |
| Market cap | $8.4B | $3.1B |
| P/E (trailing) | 17.4 | 11.1 |
| Dividend yield | 2.27% | 0.00% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | AOS | GRBK |
|---|---|---|
| 2022 | -32.1% | -20.1% |
| 2023 | +46.7% | +114.4% |
| 2024 | -15.9% | +8.8% |
| 2025 | +0.1% | +10.9% |
| 2026 | -5.8% | +16.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AOS and GRBK good diversifiers for each other?
Somewhat, no more. With 0.64 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between AOS and GRBK?
The AOS/GRBK correlation stands at 0.64 on a 3-year window (1 year: 0.72, 5 years: 0.60), computed from weekly returns as of 2026-08-27.
Is GRBK a good diversifier for AOS?
Somewhat, no more. With 0.64 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.64 mean?
On the −1 to +1 scale, 0.64 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/aos-vs-grbk.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/aos-vs-grbk/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: AOS correlations · GRBK correlations
