STVN vs WST: Correlation
Stevanato Group S.p.A. (STVN) and West Pharmaceutical Services (WST) show a moderate relationship: their 3-year correlation of weekly returns is 0.35.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are STVN and WST?
Across a 3-year window, the weekly returns of STVN and WST correlate at 0.35, moderate. The relationship has been stable: the 1-year correlation (0.44) sits close to the 3-year figure. Stretching to 5 years gives 0.44, with an annualized covariance of 640.7 %².
Few assets follow STVN as closely as WST, which ranks #3 of 10 tracked partners. The last year tells two different stories: WST led by 41.2 percentage points, -0.1% for STVN against +41.1% for WST.
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.
STVN vs WST: side by side
| STVN (Stevanato Group S.p.A.) | WST (West Pharmaceutical Services) | |
|---|---|---|
| 1-year return | -0.1% | +41.1% |
| 5-year return | -6.9% | -22.4% |
| Volatility (ann.) | 47.2% | 38.6% |
| Beta vs S&P 500 | 0.80 | 0.86 |
| Max drawdown (3Y) | -61.0% | -53.8% |
| Market cap | $6.1B | $24.4B |
| P/E (trailing) | 39.1 | 44.8 |
| Dividend yield | 0.00% | 0.25% |
| Sector / category | US Listed | Health Care |
Year-by-year returns
| Year | STVN | WST |
|---|---|---|
| 2022 | -19.7% | -49.7% |
| 2023 | +52.2% | +50.0% |
| 2024 | -19.9% | -6.8% |
| 2025 | -7.4% | -15.7% |
| 2026 | +11.2% | +26.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are STVN and WST good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.35 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between STVN and WST?
The STVN/WST correlation stands at 0.35 on a 3-year window (1 year: 0.44, 5 years: 0.44), computed from weekly returns as of 2026-08-27.
Is WST a good diversifier for STVN?
Yes, to a useful degree: a correlation of 0.35 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.35 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/stvn-vs-wst.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/stvn-vs-wst/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: STVN correlations · WST correlations
