PairBook
HomeBY › BY vs CFBK

BY vs CFBK: Correlation

Measured on weekly returns over the past three years, Byline Bancorp, Inc. (BY) and CF Bankshares Inc. (CFBK) carry a correlation of 0.55, a moderate link.

Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology

Correlation (3Y)
0.55
moderate
Correlation (1Y)
0.57
last 12 months
Correlation (5Y)
0.43
long-run
Ann. covariance
448.0
%² · weekly, annualized

How correlated are BY and CFBK?

Across a 3-year window, the weekly returns of BY and CFBK correlate at 0.55, moderate. The relationship has been stable: the 1-year correlation (0.57) sits close to the 3-year figure. Stretching to 5 years gives 0.43, with an annualized covariance of 448.0 %².

Among the 70 assets we track against BY, CFBK ranks #59 by 3-year correlation. The trailing year gives CFBK the advantage: +32.5% versus +42.5%, a 10.0-point spread.

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 CFBK: side by side

BY (Byline Bancorp, Inc.)CFBK (CF Bankshares Inc.)
1-year return+32.5%+42.5%
5-year return+66.2%+92.0%
Volatility (ann.)26.8%30.3%
Beta vs S&P 5000.800.75
Max drawdown (3Y)-27.2%-33.5%
Market cap$1.7B$0.2B
P/E (trailing)11.511.9
Dividend yield1.15%0.98%
Sector / categoryUS ListedUS Listed
Lower P/E: BY 11.5 vs 11.9Higher yield: BY 1.15% vs 0.98%Smaller drawdown: BY -27.2% vs -33.5%Higher 5y return: CFBK +92.0% vs +66.2%
-10%0%+48%2025-09-052026-08-27
Twelve months of weekly closes, each series rebased to 100. BY · CFBK

Year-by-year returns

YearBYCFBK
2022-14.7%+4.1%
2023+4.3%-6.7%
2024+25.0%+32.6%
2025+2.0%-1.0%
2026+32.7%+39.5%

Calendar-year price returns; the current year is year-to-date as of the data date above.

Are BY and CFBK good diversifiers for each other?

Somewhat, no more. With 0.55 correlation, most large moves hit both names, and the diversification benefit stays modest.

FAQ

What is the correlation between BY and CFBK?

As of 2026-08-27, the correlation of weekly returns between BY and CFBK is 0.55 over 3 years, 0.57 over 1 year and 0.43 over 5 years.

Is CFBK a good diversifier for BY?

Somewhat, no more. With 0.55 correlation, most large moves hit both names, and the diversification benefit stays modest.

What does a correlation of 0.55 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

JSON API · no key required
$ curl https://www.pairbook.io/api/v1/pairs/by-vs-cfbk.json

BY vs CFBK: 3-year weekly correlation 0.55BY vs CFBK0.55

Embed this badge (it refreshes with the data), with attribution:

[![BY vs CFBK correlation](https://www.pairbook.io/api/v1/badge/by-vs-cfbk.svg)](https://www.pairbook.io/pair/by-vs-cfbk/)

Free with attribution; caching and terms are described in the API documentation.

Related comparisons

Hubs: BY correlations · CFBK correlations