FISV vs REGN: Correlation
How closely do Fiserv (FISV) and Regeneron Pharmaceuticals (REGN) trade together? Their weekly returns over three years give a correlation of -0.21, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FISV and REGN?
Over the past 3 years, FISV and REGN moved with a correlation of -0.21, which is negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.27 lands near the 3-year figure. Over 5 years the correlation is -0.08, and the annualized covariance of weekly returns is -261.3 %².
Among the 39 assets we track against FISV, REGN ranks #27 by 3-year correlation. Correlation aside, the last 12 months split them widely, with REGN ahead by 100.2 points (-61.9% versus +38.3%). This link changes with the market regime, having swung between -0.40 and 0.33 on a rolling one-year basis.
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 REGN: side by side
| FISV (Fiserv) | REGN (Regeneron Pharmaceuticals) | |
|---|---|---|
| 1-year return | -61.9% | +38.3% |
| 5-year return | -55.0% | +20.4% |
| Volatility (ann.) | 39.2% | 31.8% |
| Beta vs S&P 500 | 0.58 | 0.61 |
| Max drawdown (3Y) | -80.2% | -59.7% |
| Market cap | $28.0B | $83.2B |
| P/E (trailing) | 10.1 | 20.2 |
| Dividend yield | 0.00% | 0.45% |
| Sector / category | Financials | Health Care |
Year-by-year returns
| Year | FISV | REGN |
|---|---|---|
| 2022 | -2.6% | +14.2% |
| 2023 | +31.4% | +21.7% |
| 2024 | +54.6% | -18.9% |
| 2025 | -67.3% | +9.0% |
| 2026 | -21.7% | +5.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FISV and REGN good diversifiers for each other?
Yes: at -0.21, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between FISV and REGN?
The FISV/REGN correlation stands at -0.21 on a 3-year window (1 year: -0.27, 5 years: -0.08), computed from weekly returns as of 2026-08-27.
Is REGN a good diversifier for FISV?
Yes: at -0.21, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.21 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-regn.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/fisv-vs-regn/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: FISV correlations · REGN correlations
