PairBook
HomeCATY › CATY vs CFFN

CATY vs CFFN: Correlation

Measured on weekly returns over the past three years, Cathay General Bancorp (CATY) and Capitol Federal Financial, Inc. (CFFN) carry a correlation of 0.79, a strong link.

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

Correlation (3Y)
0.79
strong
Correlation (1Y)
0.77
last 12 months
Correlation (5Y)
0.72
long-run
Ann. covariance
647.0
%² · weekly, annualized

How correlated are CATY and CFFN?

Over the past 3 years, CATY and CFFN moved with a correlation of 0.79, which is strong. Little has changed lately, as the 1-year reading of 0.77 lands near the 3-year figure. Over 5 years the correlation is 0.72, and the annualized covariance of weekly returns is 647.0 %².

By 3-year correlation, CFFN places #16 of the 28 assets tracked against CATY. The trailing year gives CFFN the advantage: +26.7% versus +41.0%, a 14.3-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.

CATY vs CFFN: side by side

CATY (Cathay General Bancorp)CFFN (Capitol Federal Financial, Inc.)
1-year return+26.7%+41.0%
5-year return+83.2%+4.8%
Volatility (ann.)26.8%30.6%
Beta vs S&P 5000.820.78
Max drawdown (3Y)-29.7%-29.0%
Market cap$4.1B$1.1B
P/E (trailing)12.113.3
Dividend yield2.39%3.93%
Sector / categoryUS ListedUS Listed
Lower P/E: CATY 12.1 vs 13.3Higher yield: CFFN 3.93% vs 2.39%Smaller drawdown: CFFN -29.0% vs -29.7%Higher 5y return: CATY +83.2% vs +4.8%
-8%0%+44%2025-09-052026-08-27
Price paths over the last 12 months, both indexed to 100 at the start (weekly closes). CATY · CFFN

Year-by-year returns

YearCATYCFFN
2022-2.1%-16.3%
2023+13.5%-21.2%
2024+10.3%-2.9%
2025+4.6%+22.0%
2026+30.2%+31.8%

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

Are CATY and CFFN good diversifiers for each other?

Only partially. A correlation of 0.79 means CATY and CFFN 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 CATY and CFFN?

The CATY/CFFN correlation stands at 0.79 on a 3-year window (1 year: 0.77, 5 years: 0.72), computed from weekly returns as of 2026-08-27.

Is CFFN a good diversifier for CATY?

Only partially. A correlation of 0.79 means CATY and CFFN share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.

What does a correlation of 0.79 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/caty-vs-cffn.json

CATY vs CFFN: 3-year weekly correlation 0.79CATY vs CFFN0.79

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

[![CATY vs CFFN correlation](https://www.pairbook.io/api/v1/badge/caty-vs-cffn.svg)](https://www.pairbook.io/pair/caty-vs-cffn/)

The core API is free. Terms and every endpoint in the API documentation.

Related comparisons

Hubs: CATY correlations · CFFN correlations