FFIV vs FISV: Correlation
How closely do F5, Inc. (FFIV) and Fiserv (FISV) trade together? Their weekly returns over three years give a correlation of 0.43, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FFIV and FISV?
Over the past 3 years, FFIV and FISV moved with a correlation of 0.43, which is moderate. Recent behaviour matches the longer record: 0.52 over 1 year against 0.43 over 3. Over 5 years the correlation is 0.38, and the annualized covariance of weekly returns is 447.1 %².
Among the 34 assets we track against FFIV, FISV ranks #9 by 3-year correlation. The last year tells two different stories: FFIV led by 91.0 percentage points, +29.1% for FFIV against -61.9% for FISV. Do not treat this figure as fixed: across three years the rolling one-year correlation ranged all the way from 0.06 to 0.58.
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.
FFIV vs FISV: side by side
| FFIV (F5, Inc.) | FISV (Fiserv) | |
|---|---|---|
| 1-year return | +29.1% | -61.9% |
| 5-year return | +99.3% | -55.0% |
| Volatility (ann.) | 26.6% | 39.2% |
| Beta vs S&P 500 | 0.77 | 0.58 |
| Max drawdown (3Y) | -34.7% | -80.2% |
| Market cap | $23.2B | $28.0B |
| P/E (trailing) | 31.8 | 10.1 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | Information Technology | Financials |
Year-by-year returns
| Year | FFIV | FISV |
|---|---|---|
| 2022 | -41.4% | -2.6% |
| 2023 | +24.7% | +31.4% |
| 2024 | +40.5% | +54.6% |
| 2025 | +1.5% | -67.3% |
| 2026 | +60.7% | -21.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FFIV and FISV good diversifiers for each other?
A fair diversifier. At 0.43, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between FFIV and FISV?
Using weekly returns as of 2026-08-27: 0.43 over 3 years, with 0.52 over the last year and 0.38 over 5 years.
Is FISV a good diversifier for FFIV?
A fair diversifier. At 0.43, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.43 mean?
On the −1 to +1 scale, 0.43 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.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/ffiv-vs-fisv.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ffiv-vs-fisv/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: FFIV correlations · FISV correlations
