CATY vs EFSC: Correlation
Cathay General Bancorp (CATY) and Enterprise Financial Services Corporation (EFSC) show a very strong relationship: their 3-year correlation of weekly returns is 0.88.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CATY and EFSC?
Across a 3-year window, the weekly returns of CATY and EFSC correlate at 0.88, very strong, meaning they move nearly in lockstep. The relationship has been stable: the 1-year correlation (0.86) sits close to the 3-year figure. Stretching to 5 years gives 0.83, with an annualized covariance of 630.1 %².
Within CATY's tracked universe of 28 assets, EFSC comes in at #6 by 3-year correlation. Correlation aside, the last 12 months split them widely, with CATY ahead by 21.4 points (+26.7% versus +5.3%).
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 EFSC: side by side
| CATY (Cathay General Bancorp) | EFSC (Enterprise Financial Services Corporation) | |
|---|---|---|
| 1-year return | +26.7% | +5.3% |
| 5-year return | +83.2% | +59.0% |
| Volatility (ann.) | 26.8% | 26.9% |
| Beta vs S&P 500 | 0.82 | 0.66 |
| Max drawdown (3Y) | -29.7% | -25.0% |
| Market cap | $4.1B | $2.3B |
| P/E (trailing) | 12.1 | 12.6 |
| Dividend yield | 2.39% | 2.05% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CATY | EFSC |
|---|---|---|
| 2022 | -2.1% | +6.0% |
| 2023 | +13.5% | -6.6% |
| 2024 | +10.3% | +29.3% |
| 2025 | +4.6% | -2.1% |
| 2026 | +30.2% | +18.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CATY and EFSC good diversifiers for each other?
Not really. At 0.88, the two trade almost as one position, and owning both buys little extra protection.
FAQ
What is the correlation between CATY and EFSC?
The CATY/EFSC correlation stands at 0.88 on a 3-year window (1 year: 0.86, 5 years: 0.83), computed from weekly returns as of 2026-08-27.
Is EFSC a good diversifier for CATY?
Not really. At 0.88, the two trade almost as one position, and owning both buys little extra protection.
What does a correlation of 0.88 mean?
On the −1 to +1 scale, 0.88 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
$ curl https://www.pairbook.io/api/v1/pairs/caty-vs-efsc.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/caty-vs-efsc/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: CATY correlations · EFSC correlations
