BLDR vs SUPN: Correlation
How closely do Builders FirstSource (BLDR) and Supernus Pharmaceuticals, Inc. (SUPN) trade together? Their weekly returns over three years give a correlation of 0.42, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BLDR and SUPN?
Over the past 3 years, BLDR and SUPN moved with a correlation of 0.42, which is moderate. The relationship has been stable: the 1-year correlation (0.35) sits close to the 3-year figure. Over 5 years the correlation is 0.33, and the annualized covariance of weekly returns is 625.7 %².
By 3-year correlation, SUPN places #36 of the 48 assets tracked against BLDR. Their recent paths diverged sharply: over the last 12 months SUPN outperformed by 50.6 percentage points (-52.6% for BLDR against -2.0% for SUPN).
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 SUPN: side by side
| BLDR (Builders FirstSource) | SUPN (Supernus Pharmaceuticals, Inc.) | |
|---|---|---|
| 1-year return | -52.6% | -2.0% |
| 5-year return | +25.8% | +67.3% |
| Volatility (ann.) | 45.6% | 32.5% |
| Beta vs S&P 500 | 1.36 | 0.69 |
| Max drawdown (3Y) | -68.7% | -30.1% |
| Market cap | $7.2B | $2.6B |
| P/E (trailing) | 74.7 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | BLDR | SUPN |
|---|---|---|
| 2022 | -24.3% | +22.3% |
| 2023 | +157.3% | -18.9% |
| 2024 | -14.4% | +24.9% |
| 2025 | -28.0% | +37.4% |
| 2026 | -34.7% | -11.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BLDR and SUPN good diversifiers for each other?
A fair diversifier. At 0.42, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between BLDR and SUPN?
As of 2026-08-27, the correlation of weekly returns between BLDR and SUPN is 0.42 over 3 years, 0.35 over 1 year and 0.33 over 5 years.
Is SUPN a good diversifier for BLDR?
A fair diversifier. At 0.42, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.42 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.
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Related comparisons
Hubs: BLDR correlations · SUPN correlations
