BLDR vs MBC: Correlation
Builders FirstSource (BLDR) and MasterBrand, Inc. (MBC) show a strong relationship: their 3-year correlation of weekly returns is 0.69.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BLDR and MBC?
On 3 years of weekly data the BLDR/MBC correlation comes out at 0.69, strong. Recent behaviour matches the longer record: 0.70 over 1 year against 0.69 over 3. The 5-year figure is 0.63, and annualized covariance runs at 1373.0 %².
Within BLDR's tracked universe of 48 assets, MBC comes in at #19 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months MBC outperformed by 18.8 percentage points (-52.6% for BLDR against -33.8% for MBC).
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 MBC: side by side
| BLDR (Builders FirstSource) | MBC (MasterBrand, Inc.) | |
|---|---|---|
| 1-year return | -52.6% | -33.8% |
| 5-year return | +25.8% | n/a |
| Volatility (ann.) | 45.6% | 43.7% |
| Beta vs S&P 500 | 1.36 | 1.16 |
| Max drawdown (3Y) | -68.7% | -64.7% |
| Market cap | $7.2B | $1.8B |
| P/E (trailing) | 74.7 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | BLDR | MBC |
|---|---|---|
| 2022 | -24.3% | – |
| 2023 | +157.3% | +96.7% |
| 2024 | -14.4% | -1.6% |
| 2025 | -28.0% | -24.4% |
| 2026 | -34.7% | -21.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BLDR and MBC good diversifiers for each other?
Only partially. A correlation of 0.69 means BLDR and MBC share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between BLDR and MBC?
As of 2026-08-27, the correlation of weekly returns between BLDR and MBC is 0.69 over 3 years, 0.70 over 1 year and 0.63 over 5 years.
Is MBC a good diversifier for BLDR?
Only partially. A correlation of 0.69 means BLDR and MBC share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.69 mean?
A reading of 0.69 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/bldr-vs-mbc.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/bldr-vs-mbc/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BLDR correlations · MBC correlations
