NRC vs ZD: Correlation
Measured on weekly returns over the past three years, NRC Health (NRC) and Ziff Davis, Inc. (ZD) carry a correlation of 0.38, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are NRC and ZD?
Across a 3-year window, the weekly returns of NRC and ZD correlate at 0.38, moderate. Lately the two have drifted apart, with the 1-year correlation at 0.27 versus 0.38 over 3 years. Stretching to 5 years gives 0.36, with an annualized covariance of 969.3 %².
By 3-year correlation, ZD places #5 of the 10 assets tracked against NRC. Neither side won the trailing year by much: +47.1% against +47.7%.
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.
NRC vs ZD: side by side
| NRC (NRC Health) | ZD (Ziff Davis, Inc.) | |
|---|---|---|
| 1-year return | +47.1% | +47.7% |
| 5-year return | -53.4% | -53.5% |
| Volatility (ann.) | 48.5% | 52.4% |
| Beta vs S&P 500 | 0.51 | 1.08 |
| Max drawdown (3Y) | -77.6% | -62.6% |
| Market cap | $0.5B | $1.9B |
| P/E (trailing) | 91.7 | – |
| Dividend yield | 2.73% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | NRC | ZD |
|---|---|---|
| 2022 | -8.2% | -28.6% |
| 2023 | +9.6% | -15.1% |
| 2024 | -54.5% | -19.1% |
| 2025 | +10.0% | -35.3% |
| 2026 | +19.3% | +58.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are NRC and ZD good diversifiers for each other?
Reasonably. At 0.38, NRC and ZD keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between NRC and ZD?
The NRC/ZD correlation stands at 0.38 on a 3-year window (1 year: 0.27, 5 years: 0.36), computed from weekly returns as of 2026-08-27.
Is ZD a good diversifier for NRC?
Reasonably. At 0.38, NRC and ZD keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.38 mean?
A reading of 0.38 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/nrc-vs-zd.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/nrc-vs-zd/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: NRC correlations · ZD correlations
