FFIN vs INBK: Correlation
Measured on weekly returns over the past three years, First Financial Bankshares, Inc. (FFIN) and First Internet Bancorp (INBK) carry a correlation of 0.71, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FFIN and INBK?
Over the past 3 years, FFIN and INBK moved with a correlation of 0.71, which is strong. The link has loosened recently: the 1-year correlation (0.56) runs below the 3-year figure (0.71). Over 5 years the correlation is 0.66, and the annualized covariance of weekly returns is 934.6 %².
Among the 20 assets we track against FFIN, INBK ranks #10 by 3-year correlation. Correlation aside, the last 12 months split them widely, with INBK ahead by 20.3 points (-10.8% versus +9.5%).
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.
FFIN vs INBK: side by side
| FFIN (First Financial Bankshares, Inc.) | INBK (First Internet Bancorp) | |
|---|---|---|
| 1-year return | -10.8% | +9.5% |
| 5-year return | -22.9% | -3.5% |
| Volatility (ann.) | 30.5% | 43.2% |
| Beta vs S&P 500 | 0.84 | 0.96 |
| Max drawdown (3Y) | -31.4% | -59.0% |
| Market cap | $4.7B | $0.2B |
| P/E (trailing) | 18.0 | – |
| Dividend yield | 2.35% | 0.88% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | FFIN | INBK |
|---|---|---|
| 2022 | -31.2% | -48.0% |
| 2023 | -9.8% | +1.0% |
| 2024 | +21.6% | +49.9% |
| 2025 | -15.3% | -41.4% |
| 2026 | +12.2% | +32.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FFIN and INBK good diversifiers for each other?
Somewhat, no more. With 0.71 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between FFIN and INBK?
The FFIN/INBK correlation stands at 0.71 on a 3-year window (1 year: 0.56, 5 years: 0.66), computed from weekly returns as of 2026-08-27.
Is INBK a good diversifier for FFIN?
Somewhat, no more. With 0.71 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.71 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
$ curl https://www.pairbook.io/api/v1/pairs/ffin-vs-inbk.json
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Related comparisons
Hubs: FFIN correlations · INBK correlations
