OVLY vs THFF: Correlation
Oak Valley Bancorp (CA) (OVLY) and First Financial Corporation (THFF) show a strong relationship: their 3-year correlation of weekly returns is 0.64.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are OVLY and THFF?
Across a 3-year window, the weekly returns of OVLY and THFF correlate at 0.64, strong. The relationship has been stable: the 1-year correlation (0.67) sits close to the 3-year figure. Stretching to 5 years gives 0.55, with an annualized covariance of 475.1 %².
THFF is one of the assets that tracks OVLY most closely: it ranks #3 out of the 11 assets we track against OVLY. Correlation aside, the last 12 months split them widely, with THFF ahead by 16.6 points (+22.2% versus +38.8%).
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.
OVLY vs THFF: side by side
| OVLY (Oak Valley Bancorp (CA)) | THFF (First Financial Corporation) | |
|---|---|---|
| 1-year return | +22.2% | +38.8% |
| 5-year return | +111.8% | +135.2% |
| Volatility (ann.) | 26.5% | 28.2% |
| Beta vs S&P 500 | 0.56 | 0.81 |
| Max drawdown (3Y) | -26.3% | -20.2% |
| Market cap | $0.3B | $0.9B |
| P/E (trailing) | 11.9 | 11.1 |
| Dividend yield | 2.22% | 2.77% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | OVLY | THFF |
|---|---|---|
| 2022 | +32.4% | +4.4% |
| 2023 | +33.9% | -2.6% |
| 2024 | -0.7% | +11.1% |
| 2025 | +5.1% | +36.2% |
| 2026 | +15.9% | +35.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are OVLY and THFF good diversifiers for each other?
Only partially. A correlation of 0.64 means OVLY and THFF 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 OVLY and THFF?
As of 2026-08-27, the correlation of weekly returns between OVLY and THFF is 0.64 over 3 years, 0.67 over 1 year and 0.55 over 5 years.
Is THFF a good diversifier for OVLY?
Only partially. A correlation of 0.64 means OVLY and THFF share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.64 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/ovly-vs-thff.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/ovly-vs-thff/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: OVLY correlations · THFF correlations