KEY vs NTRS: Correlation
Measured on weekly returns over the past three years, KeyCorp (KEY) and Northern Trust (NTRS) carry a correlation of 0.76, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are KEY and NTRS?
On 3 years of weekly data the KEY/NTRS correlation comes out at 0.76, strong. The relationship has been stable: the 1-year correlation (0.70) sits close to the 3-year figure. The 5-year figure is 0.73, and annualized covariance runs at 579.3 %².
Among the 59 assets we track against KEY, NTRS ranks #20 by 3-year correlation. Correlation aside, the last 12 months split them widely, with NTRS ahead by 26.4 points (+18.4% versus +44.8%). Stability stands out here, with the rolling one-year correlation confined to 0.68 through 0.83.
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 NTRS: side by side
| KEY (KeyCorp) | NTRS (Northern Trust) | |
|---|---|---|
| 1-year return | +18.4% | +44.8% |
| 5-year return | +38.0% | +83.2% |
| Volatility (ann.) | 32.1% | 23.7% |
| Beta vs S&P 500 | 1.25 | 1.08 |
| Max drawdown (3Y) | -32.2% | -25.2% |
| Market cap | $23.5B | $34.1B |
| P/E (trailing) | 13.0 | 16.1 |
| Dividend yield | 3.71% | 1.71% |
| Sector / category | Financials | Financials |
Year-by-year returns
| Year | KEY | NTRS |
|---|---|---|
| 2022 | -21.7% | -23.8% |
| 2023 | -11.5% | -1.0% |
| 2024 | +25.3% | +25.6% |
| 2025 | +26.2% | +36.9% |
| 2026 | +8.8% | +37.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are KEY and NTRS good diversifiers for each other?
Somewhat, no more. With 0.76 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between KEY and NTRS?
As of 2026-08-27, the correlation of weekly returns between KEY and NTRS is 0.76 over 3 years, 0.70 over 1 year and 0.73 over 5 years.
Is NTRS a good diversifier for KEY?
Somewhat, no more. With 0.76 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.76 mean?
A reading of 0.76 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
$ curl https://www.pairbook.io/api/v1/pairs/key-vs-ntrs.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/key-vs-ntrs/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: KEY correlations · NTRS correlations
