BLDR vs SWK: Correlation
Builders FirstSource (BLDR) and Stanley Black & Decker (SWK) show a moderate relationship: their 3-year correlation of weekly returns is 0.58.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BLDR and SWK?
On 3 years of weekly data the BLDR/SWK correlation comes out at 0.58, moderate. The past 12 months show a tighter link (0.68) than the 3-year average (0.58). The 5-year figure is 0.54, and annualized covariance runs at 938.3 %².
Among the 48 assets we track against BLDR, SWK ranks #27 by 3-year correlation. Correlation aside, the last 12 months split them widely, with SWK ahead by 89.6 points (-52.6% versus +37.0%). On a rolling one-year basis the correlation drifted between 0.37 and 0.75, a moderate band.
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.
BLDR vs SWK: side by side
| BLDR (Builders FirstSource) | SWK (Stanley Black & Decker) | |
|---|---|---|
| 1-year return | -52.6% | +37.0% |
| 5-year return | +25.8% | -39.1% |
| Volatility (ann.) | 45.6% | 35.4% |
| Beta vs S&P 500 | 1.36 | 1.19 |
| Max drawdown (3Y) | -68.7% | -48.3% |
| Market cap | $7.2B | $15.0B |
| P/E (trailing) | 74.7 | 24.4 |
| Dividend yield | 0.00% | 3.33% |
| Sector / category | Industrials | Industrials |
Year-by-year returns
| Year | BLDR | SWK |
|---|---|---|
| 2022 | -24.3% | -58.9% |
| 2023 | +157.3% | +35.6% |
| 2024 | -14.4% | -15.2% |
| 2025 | -28.0% | -3.2% |
| 2026 | -34.7% | +36.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BLDR and SWK good diversifiers for each other?
Somewhat, no more. With 0.58 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between BLDR and SWK?
Using weekly returns as of 2026-08-27: 0.58 over 3 years, with 0.68 over the last year and 0.54 over 5 years.
Is SWK a good diversifier for BLDR?
Somewhat, no more. With 0.58 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.58 mean?
On the −1 to +1 scale, 0.58 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/bldr-vs-swk.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/bldr-vs-swk/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: BLDR correlations · SWK correlations
