BSRR vs STBA: Correlation
Measured on weekly returns over the past three years, Sierra Bancorp (BSRR) and S&T Bancorp, Inc. (STBA) carry a correlation of 0.84, a very strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BSRR and STBA?
Over the past 3 years, BSRR and STBA moved with a correlation of 0.84, which is very strong, meaning they move nearly in lockstep. Little has changed lately, as the 1-year reading of 0.75 lands near the 3-year figure. Over 5 years the correlation is 0.78, and the annualized covariance of weekly returns is 763.6 %².
Few assets follow BSRR as closely as STBA, which ranks #2 of 14 tracked partners. Twelve-month performance is nearly a tie, at +32.6% for BSRR and +29.0% for STBA.
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.
BSRR vs STBA: side by side
| BSRR (Sierra Bancorp) | STBA (S&T Bancorp, Inc.) | |
|---|---|---|
| 1-year return | +32.6% | +29.0% |
| 5-year return | +91.2% | +102.2% |
| Volatility (ann.) | 31.7% | 28.7% |
| Beta vs S&P 500 | 0.83 | 0.68 |
| Max drawdown (3Y) | -29.1% | -26.1% |
| Market cap | $0.5B | $1.8B |
| P/E (trailing) | 11.7 | 13.3 |
| Dividend yield | 2.63% | 1.44% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BSRR | STBA |
|---|---|---|
| 2022 | -18.6% | +12.6% |
| 2023 | +11.5% | +2.1% |
| 2024 | +33.3% | +18.7% |
| 2025 | +17.0% | +6.7% |
| 2026 | +24.4% | +29.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BSRR and STBA good diversifiers for each other?
No. With a correlation of 0.84, BSRR and STBA move nearly in lockstep, so holding both adds very little diversification.
FAQ
What is the correlation between BSRR and STBA?
Using weekly returns as of 2026-08-27: 0.84 over 3 years, with 0.75 over the last year and 0.78 over 5 years.
Is STBA a good diversifier for BSRR?
No. With a correlation of 0.84, BSRR and STBA move nearly in lockstep, so holding both adds very little diversification.
What does a correlation of 0.84 mean?
On the −1 to +1 scale, 0.84 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/bsrr-vs-stba.json
Markdown for the live badge, attribution link included:
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Related comparisons
Hubs: BSRR correlations · STBA correlations
