NTRS vs STT: Correlation
How closely do Northern Trust (NTRS) and State Street Corporation (STT) trade together? Their weekly returns over three years give a correlation of 0.75, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are NTRS and STT?
Over the past 3 years, NTRS and STT moved with a correlation of 0.75, which is strong. Little has changed lately, as the 1-year reading of 0.79 lands near the 3-year figure. Over 5 years the correlation is 0.77, and the annualized covariance of weekly returns is 406.1 %².
STT is one of the assets that tracks NTRS most closely: it ranks #3 out of the 33 assets we track against NTRS. Correlation aside, the last 12 months split them widely, with STT ahead by 27.9 points (+44.8% versus +72.7%). The rolling one-year correlation moved between 0.56 and 0.83 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.
NTRS vs STT: side by side
| NTRS (Northern Trust) | STT (State Street Corporation) | |
|---|---|---|
| 1-year return | +44.8% | +72.7% |
| 5-year return | +83.2% | +144.9% |
| Volatility (ann.) | 23.7% | 22.9% |
| Beta vs S&P 500 | 1.08 | 0.97 |
| Max drawdown (3Y) | -25.2% | -25.7% |
| Market cap | $34.1B | $53.1B |
| P/E (trailing) | 16.1 | 17.1 |
| Dividend yield | 1.71% | 1.74% |
| Sector / category | Financials | Financials |
Year-by-year returns
| Year | NTRS | STT |
|---|---|---|
| 2022 | -23.8% | -13.8% |
| 2023 | -1.0% | +3.5% |
| 2024 | +25.6% | +30.2% |
| 2025 | +36.9% | +35.5% |
| 2026 | +37.8% | +52.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are NTRS and STT 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 NTRS and STT?
As of 2026-08-27, the correlation of weekly returns between NTRS and STT is 0.75 over 3 years, 0.79 over 1 year and 0.77 over 5 years.
Is STT a good diversifier for NTRS?
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?
A reading of 0.75 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/ntrs-vs-stt.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ntrs-vs-stt/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: NTRS correlations · STT correlations
