BLDR vs MAS: Correlation
Builders FirstSource (BLDR) and Masco (MAS) show a strong relationship: their 3-year correlation of weekly returns is 0.73.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BLDR and MAS?
Across a 3-year window, the weekly returns of BLDR and MAS correlate at 0.73, strong. Little has changed lately, as the 1-year reading of 0.76 lands near the 3-year figure. Stretching to 5 years gives 0.67, with an annualized covariance of 980.8 %².
Within BLDR's tracked universe of 48 assets, MAS comes in at #10 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months MAS outperformed by 52.1 percentage points (-52.6% for BLDR against -0.5% for MAS). The rolling one-year correlation stayed in a tight band between 0.59 and 0.80 over the past three years, which points to a structural rather than episodic relationship. Risk is not evenly split, since BLDR carries 1.5 times the volatility of the other side.
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 MAS: side by side
| BLDR (Builders FirstSource) | MAS (Masco) | |
|---|---|---|
| 1-year return | -52.6% | -0.5% |
| 5-year return | +25.8% | +29.1% |
| Volatility (ann.) | 45.6% | 29.6% |
| Beta vs S&P 500 | 1.36 | 0.95 |
| Max drawdown (3Y) | -68.7% | -30.9% |
| Market cap | $7.2B | $14.4B |
| P/E (trailing) | 74.7 | 17.0 |
| Dividend yield | 0.00% | 1.71% |
| Sector / category | Industrials | Industrials |
Year-by-year returns
| Year | BLDR | MAS |
|---|---|---|
| 2022 | -24.3% | -32.1% |
| 2023 | +157.3% | +46.6% |
| 2024 | -14.4% | +10.0% |
| 2025 | -28.0% | -10.9% |
| 2026 | -34.7% | +16.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BLDR and MAS good diversifiers for each other?
To a limited degree. At 0.73 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between BLDR and MAS?
As of 2026-08-27, the correlation of weekly returns between BLDR and MAS is 0.73 over 3 years, 0.76 over 1 year and 0.67 over 5 years.
Is MAS a good diversifier for BLDR?
To a limited degree. At 0.73 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.73 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/bldr-vs-mas.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/bldr-vs-mas/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: BLDR correlations · MAS correlations
