PSO vs TRI: Correlation
How closely do Pearson, Plc (PSO) and Thomson Reuters Corp (TRI) trade together? Their weekly returns over three years give a correlation of 0.46, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PSO and TRI?
Across a 3-year window, the weekly returns of PSO and TRI correlate at 0.46, moderate. The past 12 months show a tighter link (0.57) than the 3-year average (0.46). Stretching to 5 years gives 0.32, with an annualized covariance of 324.3 %².
In PSO's tracked universe of 10 assets, TRI sits right near the top at #1. The last year tells two different stories: PSO led by 53.2 percentage points, +15.6% for PSO against -37.6% for TRI.
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.
PSO vs TRI: side by side
| PSO (Pearson, Plc) | TRI (Thomson Reuters Corp) | |
|---|---|---|
| 1-year return | +15.6% | -37.6% |
| 5-year return | +77.5% | -0.4% |
| Volatility (ann.) | 22.1% | 32.0% |
| Beta vs S&P 500 | 0.31 | 0.53 |
| Max drawdown (3Y) | -30.7% | -62.9% |
| Market cap | $10.0B | $45.4B |
| P/E (trailing) | 24.1 | 27.6 |
| Dividend yield | 1.56% | 2.48% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | PSO | TRI |
|---|---|---|
| 2022 | +37.7% | -3.0% |
| 2023 | +12.0% | +30.0% |
| 2024 | +34.2% | +11.1% |
| 2025 | -11.2% | -16.6% |
| 2026 | +21.6% | -17.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PSO and TRI good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.46 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between PSO and TRI?
As of 2026-08-27, the correlation of weekly returns between PSO and TRI is 0.46 over 3 years, 0.57 over 1 year and 0.32 over 5 years.
Is TRI a good diversifier for PSO?
Yes, to a useful degree: a correlation of 0.46 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.46 mean?
On the −1 to +1 scale, 0.46 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: PSO correlations · TRI correlations
