VMI vs WST: Correlation
Measured on weekly returns over the past three years, Valmont Industries, Inc. (VMI) and West Pharmaceutical Services (WST) 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 VMI and WST?
On 3 years of weekly data the VMI/WST correlation comes out at 0.38, moderate. The relationship has been stable: the 1-year correlation (0.47) sits close to the 3-year figure. The 5-year figure is 0.34, and annualized covariance runs at 464.5 %².
Out of 11 assets tracked against VMI, WST lands near the bottom at #8. Over the last 12 months WST came out ahead by 11.9 percentage points (+29.2% against +41.1%).
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.
VMI vs WST: side by side
| VMI (Valmont Industries, Inc.) | WST (West Pharmaceutical Services) | |
|---|---|---|
| 1-year return | +29.2% | +41.1% |
| 5-year return | +102.0% | -22.4% |
| Volatility (ann.) | 31.8% | 38.6% |
| Beta vs S&P 500 | 1.02 | 0.86 |
| Max drawdown (3Y) | -29.8% | -53.8% |
| Market cap | $9.3B | $24.4B |
| P/E (trailing) | 18.6 | 44.8 |
| Dividend yield | 0.61% | 0.25% |
| Sector / category | US Listed | Health Care |
Year-by-year returns
| Year | VMI | WST |
|---|---|---|
| 2022 | +33.1% | -49.7% |
| 2023 | -28.7% | +50.0% |
| 2024 | +32.5% | -6.8% |
| 2025 | +32.2% | -15.7% |
| 2026 | +19.8% | +26.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are VMI and WST good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.38 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between VMI and WST?
The VMI/WST correlation stands at 0.38 on a 3-year window (1 year: 0.47, 5 years: 0.34), computed from weekly returns as of 2026-08-27.
Is WST a good diversifier for VMI?
Yes, to a useful degree: a correlation of 0.38 leaves real independence between the two, which historically damped combined 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/vmi-vs-wst.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/vmi-vs-wst/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: VMI correlations · WST correlations
