KEY vs SYF: Correlation
Measured on weekly returns over the past three years, KeyCorp (KEY) and Synchrony Financial (SYF) carry a correlation of 0.75, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are KEY and SYF?
Over the past 3 years, KEY and SYF moved with a correlation of 0.75, which is strong. The relationship has been stable: the 1-year correlation (0.65) sits close to the 3-year figure. Over 5 years the correlation is 0.72, and the annualized covariance of weekly returns is 764.1 %².
By 3-year correlation, SYF places #24 of the 59 assets tracked against KEY. On 12-month performance KEY holds a 11.1-point edge, +18.4% against +7.3%. Across three years, the rolling one-year figure varied moderately, from 0.61 to 0.87.
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 SYF: side by side
| KEY (KeyCorp) | SYF (Synchrony Financial) | |
|---|---|---|
| 1-year return | +18.4% | +7.3% |
| 5-year return | +38.0% | +81.0% |
| Volatility (ann.) | 32.1% | 31.6% |
| Beta vs S&P 500 | 1.25 | 1.28 |
| Max drawdown (3Y) | -32.2% | -37.7% |
| Market cap | $23.5B | $26.0B |
| P/E (trailing) | 13.0 | 8.2 |
| Dividend yield | 3.71% | 1.50% |
| Sector / category | Financials | Financials |
Year-by-year returns
| Year | KEY | SYF |
|---|---|---|
| 2022 | -21.7% | -27.4% |
| 2023 | -11.5% | +19.8% |
| 2024 | +25.3% | +74.0% |
| 2025 | +26.2% | +30.6% |
| 2026 | +8.8% | -3.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are KEY and SYF good diversifiers for each other?
Somewhat, no more. With 0.75 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between KEY and SYF?
The KEY/SYF correlation stands at 0.75 on a 3-year window (1 year: 0.65, 5 years: 0.72), computed from weekly returns as of 2026-08-27.
Is SYF a good diversifier for KEY?
Somewhat, no more. With 0.75 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.75 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/key-vs-syf.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/key-vs-syf/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: KEY correlations · SYF correlations
