BAC vs STT: Correlation
How closely do Bank of America (BAC) and State Street Corporation (STT) trade together? Their weekly returns over three years give a correlation of 0.72, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BAC and STT?
On 3 years of weekly data the BAC/STT correlation comes out at 0.72, strong. Lately the two have drifted apart, with the 1-year correlation at 0.60 versus 0.72 over 3 years. The 5-year figure is 0.75, and annualized covariance runs at 439.1 %².
Among the 45 assets we track against BAC, STT ranks #21 by 3-year correlation. The last year tells two different stories: STT led by 48.6 percentage points, +24.1% for BAC against +72.7% for STT. The rolling one-year correlation moved between 0.51 and 0.87 over the past three years, a moderate range.
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.
BAC vs STT: side by side
| BAC (Bank of America) | STT (State Street Corporation) | |
|---|---|---|
| 1-year return | +24.1% | +72.7% |
| 5-year return | +66.0% | +144.9% |
| Volatility (ann.) | 26.5% | 22.9% |
| Beta vs S&P 500 | 1.11 | 0.97 |
| Max drawdown (3Y) | -27.5% | -25.7% |
| Market cap | $427.7B | $53.1B |
| P/E (trailing) | 14.1 | 17.1 |
| Dividend yield | 1.80% | 1.74% |
| Sector / category | Financials | Financials |
Year-by-year returns
| Year | BAC | STT |
|---|---|---|
| 2022 | -23.8% | -13.8% |
| 2023 | +4.8% | +3.5% |
| 2024 | +33.9% | +30.2% |
| 2025 | +28.0% | +35.5% |
| 2026 | +12.4% | +52.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BAC and STT good diversifiers for each other?
Somewhat, no more. With 0.72 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between BAC and STT?
Using weekly returns as of 2026-08-27: 0.72 over 3 years, with 0.60 over the last year and 0.75 over 5 years.
Is STT a good diversifier for BAC?
Somewhat, no more. With 0.72 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.72 mean?
On the −1 to +1 scale, 0.72 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
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Related comparisons
Hubs: BAC correlations · STT correlations
