WLY vs ZD: Correlation
John Wiley & Sons, Inc. (WLY) and Ziff Davis, Inc. (ZD) show a moderate relationship: their 3-year correlation of weekly returns is 0.40.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are WLY and ZD?
Over the past 3 years, WLY and ZD moved with a correlation of 0.40, which is moderate. Lately the two have moved closer together, with the 1-year correlation at 0.62 versus 0.40 over 3 years. Over 5 years the correlation is 0.44, and the annualized covariance of weekly returns is 704.0 %².
Few assets follow WLY as closely as ZD, which ranks #2 of 10 tracked partners. The trailing year gives ZD the advantage: +38.2% versus +47.7%, a 9.5-point spread. One caveat on sizing: ZD is 1.6 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
WLY vs ZD: side by side
| WLY (John Wiley & Sons, Inc.) | ZD (Ziff Davis, Inc.) | |
|---|---|---|
| 1-year return | +38.2% | +47.7% |
| 5-year return | +10.0% | -53.5% |
| Volatility (ann.) | 33.8% | 52.4% |
| Beta vs S&P 500 | 0.50 | 1.08 |
| Max drawdown (3Y) | -43.3% | -62.6% |
| Market cap | $2.7B | $1.9B |
| P/E (trailing) | 13.0 | – |
| Dividend yield | 2.67% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | WLY | ZD |
|---|---|---|
| 2022 | -27.8% | -28.6% |
| 2023 | -17.5% | -15.1% |
| 2024 | +42.2% | -19.1% |
| 2025 | -27.2% | -35.3% |
| 2026 | +79.3% | +58.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are WLY and ZD good diversifiers for each other?
A fair diversifier. At 0.40, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between WLY and ZD?
Using weekly returns as of 2026-08-27: 0.40 over 3 years, with 0.62 over the last year and 0.44 over 5 years.
Is ZD a good diversifier for WLY?
A fair diversifier. At 0.40, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.40 mean?
On the −1 to +1 scale, 0.40 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/wly-vs-zd.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/wly-vs-zd/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: WLY correlations · ZD correlations
