FISV vs PSO: Correlation
How closely do Fiserv (FISV) and Pearson, Plc (PSO) trade together? Their weekly returns over three years give a correlation of 0.40, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FISV and PSO?
Over the past 3 years, FISV and PSO moved with a correlation of 0.40, which is moderate. The link has tightened recently: the 1-year correlation (0.55) runs above the 3-year figure (0.40). Over 5 years the correlation is 0.29, and the annualized covariance of weekly returns is 347.3 %².
Among the 39 assets we track against FISV, PSO ranks #18 by 3-year correlation. Correlation aside, the last 12 months split them widely, with PSO ahead by 77.5 points (-61.9% versus +15.6%). Risk is not evenly split, since FISV carries 1.8 times the volatility of the other side.
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.
FISV vs PSO: side by side
| FISV (Fiserv) | PSO (Pearson, Plc) | |
|---|---|---|
| 1-year return | -61.9% | +15.6% |
| 5-year return | -55.0% | +77.5% |
| Volatility (ann.) | 39.2% | 22.1% |
| Beta vs S&P 500 | 0.58 | 0.31 |
| Max drawdown (3Y) | -80.2% | -30.7% |
| Market cap | $28.0B | $10.0B |
| P/E (trailing) | 10.1 | 24.1 |
| Dividend yield | 0.00% | 1.56% |
| Sector / category | Financials | US Listed |
Year-by-year returns
| Year | FISV | PSO |
|---|---|---|
| 2022 | -2.6% | +37.7% |
| 2023 | +31.4% | +12.0% |
| 2024 | +54.6% | +34.2% |
| 2025 | -67.3% | -11.2% |
| 2026 | -21.7% | +21.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FISV and PSO good diversifiers for each other?
Reasonably. At 0.40, FISV and PSO keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between FISV and PSO?
Using weekly returns as of 2026-08-27: 0.40 over 3 years, with 0.55 over the last year and 0.29 over 5 years.
Is PSO a good diversifier for FISV?
Reasonably. At 0.40, FISV and PSO keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.40 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/fisv-vs-pso.json
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The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: FISV correlations · PSO correlations
