PairBook
HomeBSRR › BSRR vs NTB

BSRR vs NTB: Correlation

How closely do Sierra Bancorp (BSRR) and Bank of N.T. Butterfield & Son Limited (The) Voting (NTB) trade together? Their weekly returns over three years give a correlation of 0.75, which is strong.

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

Correlation (3Y)
0.75
strong
Correlation (1Y)
0.67
last 12 months
Correlation (5Y)
0.65
long-run
Ann. covariance
561.1
%² · weekly, annualized

How correlated are BSRR and NTB?

On 3 years of weekly data the BSRR/NTB correlation comes out at 0.75, strong. Little has changed lately, as the 1-year reading of 0.67 lands near the 3-year figure. The 5-year figure is 0.65, and annualized covariance runs at 561.1 %².

Within BSRR's tracked universe of 14 assets, NTB comes in at #6 by 3-year correlation. Neither side won the trailing year by much: +32.6% against +34.0%.

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 NTB: side by side

BSRR (Sierra Bancorp)NTB (Bank of N.T. Butterfield & Son Limited (The) Voting)
1-year return+32.6%+34.0%
5-year return+91.2%+125.2%
Volatility (ann.)31.7%23.5%
Beta vs S&P 5000.830.71
Max drawdown (3Y)-29.1%-14.7%
Market cap$0.5B$2.3B
P/E (trailing)11.710.4
Dividend yield2.63%3.39%
Sector / categoryUS ListedUS Listed
Lower P/E: NTB 10.4 vs 11.7Higher yield: NTB 3.39% vs 2.63%Smaller drawdown: NTB -14.7% vs -29.1%Higher 5y return: NTB +125.2% vs +91.2%
-11%0%+47%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. BSRR · NTB

Year-by-year returns

YearBSRRNTB
2022-18.6%-17.5%
2023+11.5%+14.3%
2024+33.3%+20.2%
2025+17.0%+41.0%
2026+24.4%+21.9%

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

Are BSRR and NTB good diversifiers for each other?

Only partially. A correlation of 0.75 means BSRR and NTB share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.

FAQ

What is the correlation between BSRR and NTB?

Using weekly returns as of 2026-08-27: 0.75 over 3 years, with 0.67 over the last year and 0.65 over 5 years.

Is NTB a good diversifier for BSRR?

Only partially. A correlation of 0.75 means BSRR and NTB share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.

What does a correlation of 0.75 mean?

On the −1 to +1 scale, 0.75 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.

Use this data

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

BSRR vs NTB: 3-year weekly correlation 0.75BSRR vs NTB0.75

Markdown for the live badge, attribution link included:

[![BSRR vs NTB correlation](https://www.pairbook.io/api/v1/badge/bsrr-vs-ntb.svg)](https://www.pairbook.io/pair/bsrr-vs-ntb/)

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

Related comparisons

Hubs: BSRR correlations · NTB correlations