EBAY vs FORR: Correlation
How closely do eBay Inc. (EBAY) and Forrester Research, Inc. (FORR) 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 FORR?
On 3 years of weekly data the EBAY/FORR correlation comes out at 0.38, moderate. The link has tightened recently: the 1-year correlation (0.58) runs above the 3-year figure (0.38). The 5-year figure is 0.38, and annualized covariance runs at 552.4 %².
Within EBAY's tracked universe of 33 assets, FORR comes in at #4 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months FORR outperformed by 15.1 percentage points (+10.6% for EBAY against +25.7% for FORR). Note the risk asymmetry: FORR runs 1.7 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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 FORR: side by side
| EBAY (eBay Inc.) | FORR (Forrester Research, Inc.) | |
|---|---|---|
| 1-year return | +10.6% | +25.7% |
| 5-year return | +43.9% | -74.7% |
| Volatility (ann.) | 28.9% | 50.1% |
| Beta vs S&P 500 | 0.58 | 0.82 |
| Max drawdown (3Y) | -20.7% | -83.9% |
| Market cap | $45.5B | $0.2B |
| P/E (trailing) | 21.9 | – |
| Dividend yield | 1.15% | 0.00% |
| Sector / category | Consumer Discretionary | US Listed |
Year-by-year returns
| Year | EBAY | FORR |
|---|---|---|
| 2022 | -36.5% | -39.1% |
| 2023 | +7.7% | -25.0% |
| 2024 | +44.8% | -41.6% |
| 2025 | +42.7% | -48.2% |
| 2026 | +18.1% | +50.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are EBAY and FORR good diversifiers for each other?
Reasonably. At 0.38, EBAY and FORR keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between EBAY and FORR?
The EBAY/FORR correlation stands at 0.38 on a 3-year window (1 year: 0.58, 5 years: 0.38), computed from weekly returns as of 2026-08-27.
Is FORR a good diversifier for EBAY?
Reasonably. At 0.38, EBAY and FORR keep a meaningful degree of independence, and combining them has historically reduced portfolio 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-forr.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ebay-vs-forr/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: EBAY correlations · FORR correlations
