BY vs FSUN: Correlation
Byline Bancorp, Inc. (BY) and FirstSun Capital Bancorp (FSUN) show a moderate relationship: their 3-year correlation of weekly returns is 0.51.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BY and FSUN?
Over the past 3 years, BY and FSUN moved with a correlation of 0.51, which is moderate. Lately the two have moved closer together, with the 1-year correlation at 0.64 versus 0.51 over 3 years. Over 5 years the correlation is 0.44, and the annualized covariance of weekly returns is 375.5 %².
Within BY's tracked universe of 70 assets, FSUN comes in at #63 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months BY outperformed by 26.7 percentage points (+32.5% for BY against +5.8% for FSUN).
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 FSUN: side by side
| BY (Byline Bancorp, Inc.) | FSUN (FirstSun Capital Bancorp) | |
|---|---|---|
| 1-year return | +32.5% | +5.8% |
| 5-year return | +66.2% | n/a |
| Volatility (ann.) | 26.8% | 27.4% |
| Beta vs S&P 500 | 0.80 | 0.57 |
| Max drawdown (3Y) | -27.2% | -31.4% |
| Market cap | $1.7B | $1.8B |
| P/E (trailing) | 11.5 | 24.0 |
| Dividend yield | 1.15% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BY | FSUN |
|---|---|---|
| 2022 | -14.7% | – |
| 2023 | +4.3% | -6.7% |
| 2024 | +25.0% | +17.8% |
| 2025 | +2.0% | -6.0% |
| 2026 | +32.7% | +6.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BY and FSUN good diversifiers for each other?
Somewhat, no more. With 0.51 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between BY and FSUN?
The BY/FSUN correlation stands at 0.51 on a 3-year window (1 year: 0.64, 5 years: 0.44), computed from weekly returns as of 2026-08-27.
Is FSUN a good diversifier for BY?
Somewhat, no more. With 0.51 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.51 mean?
A reading of 0.51 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-fsun.json
Embed this badge (it refreshes with the data), with attribution:
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Related comparisons
Hubs: BY correlations · FSUN correlations
