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FISI vs THFF: Correlation

Measured on weekly returns over the past three years, Financial Institutions, Inc. (FISI) and First Financial Corporation (THFF) carry a correlation of 0.83, a very strong link.

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

Correlation (3Y)
0.83
very strong
Correlation (1Y)
0.84
last 12 months
Correlation (5Y)
0.80
long-run
Ann. covariance
749.0
%² · weekly, annualized

How correlated are FISI and THFF?

On 3 years of weekly data the FISI/THFF correlation comes out at 0.83, very strong, meaning they move nearly in lockstep. The relationship has been stable: the 1-year correlation (0.84) sits close to the 3-year figure. The 5-year figure is 0.80, and annualized covariance runs at 749.0 %².

Among the 14 assets we track against FISI, THFF ranks #5 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months FISI outperformed by 15.5 percentage points (+54.3% for FISI against +38.8% for THFF).

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.

FISI vs THFF: side by side

FISI (Financial Institutions, Inc.)THFF (First Financial Corporation)
1-year return+54.3%+38.8%
5-year return+65.6%+135.2%
Volatility (ann.)31.9%28.2%
Beta vs S&P 5000.930.81
Max drawdown (3Y)-27.8%-20.2%
Market cap$0.8B$0.9B
P/E (trailing)10.111.1
Dividend yield3.09%2.77%
Sector / categoryUS ListedUS Listed
Lower P/E: FISI 10.1 vs 11.1Higher yield: FISI 3.09% vs 2.77%Smaller drawdown: THFF -20.2% vs -27.8%Higher 5y return: THFF +135.2% vs +65.6%
-11%0%+58%2025-09-052026-08-27
Price paths over the last 12 months, both indexed to 100 at the start (weekly closes). FISI · THFF

Year-by-year returns

YearFISITHFF
2022-20.0%+4.4%
2023-6.8%-2.6%
2024+35.5%+11.1%
2025+19.5%+36.2%
2026+33.8%+35.0%

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

Are FISI and THFF good diversifiers for each other?

Not really. At 0.83, the two trade almost as one position, and owning both buys little extra protection.

FAQ

What is the correlation between FISI and THFF?

Using weekly returns as of 2026-08-27: 0.83 over 3 years, with 0.84 over the last year and 0.80 over 5 years.

Is THFF a good diversifier for FISI?

Not really. At 0.83, the two trade almost as one position, and owning both buys little extra protection.

What does a correlation of 0.83 mean?

A reading of 0.83 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.

Use this data

JSON API · no key required
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FISI vs THFF: 3-year weekly correlation 0.83FISI vs THFF0.83

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Related comparisons

Hubs: FISI correlations · THFF correlations