BY vs GSBC: Correlation
Measured on weekly returns over the past three years, Byline Bancorp, Inc. (BY) and Great Southern Bancorp, Inc. (GSBC) carry a correlation of 0.88, a very strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BY and GSBC?
On 3 years of weekly data the BY/GSBC correlation comes out at 0.88, very strong, meaning they move nearly in lockstep. Recent behaviour matches the longer record: 0.84 over 1 year against 0.88 over 3. The 5-year figure is 0.80, and annualized covariance runs at 587.3 %².
Within BY's tracked universe of 70 assets, GSBC comes in at #9 by 3-year correlation. Over the last 12 months BY came out ahead by 5.8 percentage points (+32.5% against +26.7%).
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.
BY vs GSBC: side by side
| BY (Byline Bancorp, Inc.) | GSBC (Great Southern Bancorp, Inc.) | |
|---|---|---|
| 1-year return | +32.5% | +26.7% |
| 5-year return | +66.2% | +68.1% |
| Volatility (ann.) | 26.8% | 24.8% |
| Beta vs S&P 500 | 0.80 | 0.62 |
| Max drawdown (3Y) | -27.2% | -23.4% |
| Market cap | $1.7B | $0.9B |
| P/E (trailing) | 11.5 | 13.1 |
| Dividend yield | 1.15% | 2.19% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BY | GSBC |
|---|---|---|
| 2022 | -14.7% | +3.1% |
| 2023 | +4.3% | +2.8% |
| 2024 | +25.0% | +3.5% |
| 2025 | +2.0% | +6.0% |
| 2026 | +32.7% | +29.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BY and GSBC good diversifiers for each other?
No: a correlation of 0.88 means BY and GSBC tend to fall together, which is precisely when diversification is supposed to help.
FAQ
What is the correlation between BY and GSBC?
As of 2026-08-27, the correlation of weekly returns between BY and GSBC is 0.88 over 3 years, 0.84 over 1 year and 0.80 over 5 years.
Is GSBC a good diversifier for BY?
No: a correlation of 0.88 means BY and GSBC tend to fall together, which is precisely when diversification is supposed to help.
What does a correlation of 0.88 mean?
A reading of 0.88 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/by-vs-gsbc.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/by-vs-gsbc/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BY correlations · GSBC correlations
