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KEY vs WTFC: Correlation

KeyCorp (KEY) and Wintrust Financial Corporation (WTFC) show a very strong relationship: their 3-year correlation of weekly returns is 0.86.

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

Correlation (3Y)
0.86
very strong
Correlation (1Y)
0.89
last 12 months
Correlation (5Y)
0.84
long-run
Ann. covariance
762.5
%² · weekly, annualized

How correlated are KEY and WTFC?

Over the past 3 years, KEY and WTFC moved with a correlation of 0.86, which is very strong, meaning they move nearly in lockstep. The relationship has been stable: the 1-year correlation (0.89) sits close to the 3-year figure. Over 5 years the correlation is 0.84, and the annualized covariance of weekly returns is 762.5 %².

By 3-year correlation, WTFC places #10 of the 59 assets tracked against KEY. On 12-month performance KEY holds a 5.7-point edge, +18.4% against +12.7%.

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.

KEY vs WTFC: side by side

KEY (KeyCorp)WTFC (Wintrust Financial Corporation)
1-year return+18.4%+12.7%
5-year return+38.0%+127.7%
Volatility (ann.)32.1%27.6%
Beta vs S&P 5001.251.06
Max drawdown (3Y)-32.2%-31.0%
Market cap$23.5B$10.3B
P/E (trailing)13.012.3
Dividend yield3.71%1.37%
Sector / categoryFinancialsUS Listed
Lower P/E: WTFC 12.3 vs 13.0Higher yield: KEY 3.71% vs 1.37%Smaller drawdown: WTFC -31.0% vs -32.2%Higher 5y return: WTFC +127.7% vs +38.0%
-12%0%+28%2025-09-052026-08-27
Both assets over the last year, indexed to 100 at the starting week. KEY · WTFC

Year-by-year returns

YearKEYWTFC
2022-21.7%-5.5%
2023-11.5%+12.0%
2024+25.3%+36.8%
2025+26.2%+13.9%
2026+8.8%+10.6%

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

Are KEY and WTFC good diversifiers for each other?

No: a correlation of 0.86 means KEY and WTFC tend to fall together, which is precisely when diversification is supposed to help.

FAQ

What is the correlation between KEY and WTFC?

As of 2026-08-27, the correlation of weekly returns between KEY and WTFC is 0.86 over 3 years, 0.89 over 1 year and 0.84 over 5 years.

Is WTFC a good diversifier for KEY?

No: a correlation of 0.86 means KEY and WTFC tend to fall together, which is precisely when diversification is supposed to help.

What does a correlation of 0.86 mean?

A reading of 0.86 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
$ curl https://www.pairbook.io/api/v1/pairs/key-vs-wtfc.json

KEY vs WTFC: 3-year weekly correlation 0.86KEY vs WTFC0.86

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Related comparisons

Hubs: KEY correlations · WTFC correlations