AMG vs STT: Correlation
How closely do Affiliated Managers Group, Inc. (AMG) and State Street Corporation (STT) trade together? Their weekly returns over three years give a correlation of 0.58, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AMG and STT?
Over the past 3 years, AMG and STT moved with a correlation of 0.58, which is moderate. Lately the two have drifted apart, with the 1-year correlation at 0.37 versus 0.58 over 3 years. Over 5 years the correlation is 0.59, and the annualized covariance of weekly returns is 357.3 %².
In AMG's tracked universe of 13 assets, STT sits right near the top at #2. On 12-month performance STT holds a 10.0-point edge, +62.7% against +72.7%.
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.
AMG vs STT: side by side
| AMG (Affiliated Managers Group, Inc.) | STT (State Street Corporation) | |
|---|---|---|
| 1-year return | +62.7% | +72.7% |
| 5-year return | +116.5% | +144.9% |
| Volatility (ann.) | 26.6% | 22.9% |
| Beta vs S&P 500 | 0.82 | 0.97 |
| Max drawdown (3Y) | -27.0% | -25.7% |
| Market cap | $9.6B | $53.1B |
| P/E (trailing) | 13.0 | 17.1 |
| Dividend yield | 0.01% | 1.74% |
| Sector / category | US Listed | Financials |
Year-by-year returns
| Year | AMG | STT |
|---|---|---|
| 2022 | -3.7% | -13.8% |
| 2023 | -4.4% | +3.5% |
| 2024 | +22.2% | +30.2% |
| 2025 | +55.9% | +35.5% |
| 2026 | +28.5% | +52.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AMG and STT good diversifiers for each other?
Somewhat, no more. With 0.58 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between AMG and STT?
The AMG/STT correlation stands at 0.58 on a 3-year window (1 year: 0.37, 5 years: 0.59), computed from weekly returns as of 2026-08-27.
Is STT a good diversifier for AMG?
Somewhat, no more. With 0.58 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.58 mean?
On the −1 to +1 scale, 0.58 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: AMG correlations · STT correlations
