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BSRR vs BY: Correlation

Measured on weekly returns over the past three years, Sierra Bancorp (BSRR) and Byline Bancorp, Inc. (BY) carry a correlation of 0.83, a very strong link.

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

Correlation (3Y)
0.83
very strong
Correlation (1Y)
0.67
last 12 months
Correlation (5Y)
0.80
long-run
Ann. covariance
707.1
%² · weekly, annualized

How correlated are BSRR and BY?

Across a 3-year window, the weekly returns of BSRR and BY correlate at 0.83, very strong, meaning they move nearly in lockstep. The past 12 months show a weaker link (0.67) than the 3-year average (0.83). Stretching to 5 years gives 0.80, with an annualized covariance of 707.1 %².

In BSRR's tracked universe of 14 assets, BY sits right near the top at #3. Neither side won the trailing year by much: +32.6% against +32.5%.

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 BY: side by side

BSRR (Sierra Bancorp)BY (Byline Bancorp, Inc.)
1-year return+32.6%+32.5%
5-year return+91.2%+66.2%
Volatility (ann.)31.7%26.8%
Beta vs S&P 5000.830.80
Max drawdown (3Y)-29.1%-27.2%
Market cap$0.5B$1.7B
P/E (trailing)11.711.5
Dividend yield2.63%1.15%
Sector / categoryUS ListedUS Listed
Lower P/E: BY 11.5 vs 11.7Higher yield: BSRR 2.63% vs 1.15%Smaller drawdown: BY -27.2% vs -29.1%Higher 5y return: BSRR +91.2% vs +66.2%
-11%0%+42%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. BSRR · BY

Year-by-year returns

YearBSRRBY
2022-18.6%-14.7%
2023+11.5%+4.3%
2024+33.3%+25.0%
2025+17.0%+2.0%
2026+24.4%+32.7%

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

Are BSRR and BY good diversifiers for each other?

Not really. At 0.83, the two trade almost as one position, and owning both buys little extra protection.

FAQ

What is the correlation between BSRR and BY?

Using weekly returns as of 2026-08-27: 0.83 over 3 years, with 0.67 over the last year and 0.80 over 5 years.

Is BY a good diversifier for BSRR?

Not really. At 0.83, the two trade almost as one position, and owning both buys little extra protection.

What does a correlation of 0.83 mean?

A reading of 0.83 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

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

BSRR vs BY: 3-year weekly correlation 0.83BSRR vs BY0.83

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Related comparisons

Hubs: BSRR correlations · BY correlations