BLBD vs STRL: Correlation
How closely do Blue Bird Corporation (BLBD) and Sterling Infrastructure, Inc. (STRL) trade together? Their weekly returns over three years give a correlation of 0.50, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BLBD and STRL?
Across a 3-year window, the weekly returns of BLBD and STRL correlate at 0.50, moderate. Little has changed lately, as the 1-year reading of 0.45 lands near the 3-year figure. Stretching to 5 years gives 0.39, with an annualized covariance of 1674.4 %².
Few assets follow BLBD as closely as STRL, which ranks #1 of 12 tracked partners. Their recent paths diverged sharply: over the last 12 months STRL outperformed by 72.0 percentage points (+3.0% for BLBD against +75.0% for STRL).
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.
BLBD vs STRL: side by side
| BLBD (Blue Bird Corporation) | STRL (Sterling Infrastructure, Inc.) | |
|---|---|---|
| 1-year return | +3.0% | +75.0% |
| 5-year return | +182.6% | +2095.9% |
| Volatility (ann.) | 49.8% | 66.9% |
| Beta vs S&P 500 | 0.95 | 2.13 |
| Max drawdown (3Y) | -45.9% | -51.1% |
| Market cap | $1.9B | $15.5B |
| P/E (trailing) | 7.2 | 36.5 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BLBD | STRL |
|---|---|---|
| 2022 | -31.5% | +24.7% |
| 2023 | +151.7% | +168.1% |
| 2024 | +43.3% | +91.6% |
| 2025 | +21.7% | +81.8% |
| 2026 | +27.5% | +65.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BLBD and STRL good diversifiers for each other?
Somewhat, no more. With 0.50 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between BLBD and STRL?
Using weekly returns as of 2026-08-27: 0.50 over 3 years, with 0.45 over the last year and 0.39 over 5 years.
Is STRL a good diversifier for BLBD?
Somewhat, no more. With 0.50 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.50 mean?
A reading of 0.50 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
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Related comparisons
Hubs: BLBD correlations · STRL correlations
