WST vs ZOOZ: Correlation
Measured on weekly returns over the past three years, West Pharmaceutical Services (WST) and ZOOZ Strategy Ltd. (ZOOZ) carry a correlation of 0.43, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are WST and ZOOZ?
Across a 3-year window, the weekly returns of WST and ZOOZ correlate at 0.43, moderate. The link has loosened recently: the 1-year correlation (0.19) runs below the 3-year figure (0.43). Stretching to 5 years gives n/a, with an annualized covariance of 2502.1 %².
ZOOZ is one of the assets that tracks WST most closely: it ranks #3 out of the 36 assets we track against WST. The last year tells two different stories: WST led by 120.0 percentage points, +41.1% for WST against -78.9% for ZOOZ. Risk is not evenly split, since ZOOZ carries 3.8 times the volatility of the other side.
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.
WST vs ZOOZ: side by side
| WST (West Pharmaceutical Services) | ZOOZ (ZOOZ Strategy Ltd.) | |
|---|---|---|
| 1-year return | +41.1% | -78.9% |
| 5-year return | -22.4% | n/a |
| Volatility (ann.) | 38.6% | 147.3% |
| Beta vs S&P 500 | 0.86 | 1.83 |
| Max drawdown (3Y) | -53.8% | -93.9% |
| Market cap | $24.4B | $0.1B |
| P/E (trailing) | 44.8 | – |
| Dividend yield | 0.25% | 0.00% |
| Sector / category | Health Care | US Listed |
Year-by-year returns
| Year | WST | ZOOZ |
|---|---|---|
| 2022 | -49.7% | – |
| 2023 | +50.0% | – |
| 2024 | -6.8% | – |
| 2025 | -15.7% | -82.1% |
| 2026 | +26.1% | -22.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are WST and ZOOZ good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.43 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between WST and ZOOZ?
The WST/ZOOZ correlation stands at 0.43 on a 3-year window (1 year: 0.19, 5 years: n/a), computed from weekly returns as of 2026-08-27.
Is ZOOZ a good diversifier for WST?
Yes, to a useful degree: a correlation of 0.43 leaves real independence between the two, which historically damped combined volatility.
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/wst-vs-zooz.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/wst-vs-zooz/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: WST correlations · ZOOZ correlations
