BY vs PFIS: Correlation
Measured on weekly returns over the past three years, Byline Bancorp, Inc. (BY) and Peoples Financial Services Corp. (PFIS) carry a correlation of 0.77, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BY and PFIS?
Across a 3-year window, the weekly returns of BY and PFIS correlate at 0.77, strong. The past 12 months show a tighter link (0.89) than the 3-year average (0.77). Stretching to 5 years gives 0.69, with an annualized covariance of 631.2 %².
By 3-year correlation, PFIS places #42 of the 70 assets tracked against BY. Their 12-month results are close: +32.5% for BY against +35.5% for PFIS.
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 PFIS: side by side
| BY (Byline Bancorp, Inc.) | PFIS (Peoples Financial Services Corp.) | |
|---|---|---|
| 1-year return | +32.5% | +35.5% |
| 5-year return | +66.2% | +82.0% |
| Volatility (ann.) | 26.8% | 30.5% |
| Beta vs S&P 500 | 0.80 | 0.66 |
| Max drawdown (3Y) | -27.2% | -29.1% |
| Market cap | $1.7B | $0.7B |
| P/E (trailing) | 11.5 | 12.3 |
| Dividend yield | 1.15% | 3.56% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BY | PFIS |
|---|---|---|
| 2022 | -14.7% | +1.5% |
| 2023 | +4.3% | -2.5% |
| 2024 | +25.0% | +9.9% |
| 2025 | +2.0% | +0.0% |
| 2026 | +32.7% | +45.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BY and PFIS good diversifiers for each other?
To a limited degree. At 0.77 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between BY and PFIS?
The BY/PFIS correlation stands at 0.77 on a 3-year window (1 year: 0.89, 5 years: 0.69), computed from weekly returns as of 2026-08-27.
Is PFIS a good diversifier for BY?
To a limited degree. At 0.77 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.77 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.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/by-vs-pfis.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/by-vs-pfis/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BY correlations · PFIS correlations
