EBAY vs FFIV: Correlation
How closely do eBay Inc. (EBAY) and F5, Inc. (FFIV) trade together? Their weekly returns over three years give a correlation of 0.38, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are EBAY and FFIV?
On 3 years of weekly data the EBAY/FFIV correlation comes out at 0.38, moderate. The past 12 months show a tighter link (0.50) than the 3-year average (0.38). The 5-year figure is 0.44, and annualized covariance runs at 295.6 %².
Few assets follow EBAY as closely as FFIV, which ranks #3 of 33 tracked partners. Their recent paths diverged sharply: over the last 12 months FFIV outperformed by 18.5 percentage points (+10.6% for EBAY against +29.1% for FFIV). On a rolling one-year basis the correlation drifted between 0.19 and 0.53, a moderate band.
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.
EBAY vs FFIV: side by side
| EBAY (eBay Inc.) | FFIV (F5, Inc.) | |
|---|---|---|
| 1-year return | +10.6% | +29.1% |
| 5-year return | +43.9% | +99.3% |
| Volatility (ann.) | 28.9% | 26.6% |
| Beta vs S&P 500 | 0.58 | 0.77 |
| Max drawdown (3Y) | -20.7% | -34.7% |
| Market cap | $45.5B | $23.2B |
| P/E (trailing) | 21.9 | 31.8 |
| Dividend yield | 1.15% | 0.00% |
| Sector / category | Consumer Discretionary | Information Technology |
Year-by-year returns
| Year | EBAY | FFIV |
|---|---|---|
| 2022 | -36.5% | -41.4% |
| 2023 | +7.7% | +24.7% |
| 2024 | +44.8% | +40.5% |
| 2025 | +42.7% | +1.5% |
| 2026 | +18.1% | +60.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are EBAY and FFIV good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.38 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between EBAY and FFIV?
Using weekly returns as of 2026-08-27: 0.38 over 3 years, with 0.50 over the last year and 0.44 over 5 years.
Is FFIV a good diversifier for EBAY?
Yes, to a useful degree: a correlation of 0.38 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.38 mean?
On the −1 to +1 scale, 0.38 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/ebay-vs-ffiv.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/ebay-vs-ffiv/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: EBAY correlations · FFIV correlations
