BESS vs WST: Correlation
Bimergen Energy Corporation (BESS) and West Pharmaceutical Services (WST) show a negative relationship: their 3-year correlation of weekly returns is -0.50.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BESS and WST?
On 3 years of weekly data the BESS/WST correlation comes out at -0.50, negative, meaning they tend to move in opposite directions. Lately the two have moved closer together, with the 1-year correlation at -0.06 versus -0.50 over 3 years. The 5-year figure is -0.39, and annualized covariance runs at -99598.4 %².
Out of 51 assets tracked against BESS, WST lands near the bottom at #51. The last year tells two different stories: WST led by 91.5 percentage points, -50.4% for BESS against +41.1% for WST. Risk is not evenly split, since BESS carries 133.2 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.
BESS vs WST: side by side
| BESS (Bimergen Energy Corporation) | WST (West Pharmaceutical Services) | |
|---|---|---|
| 1-year return | -50.4% | +41.1% |
| 5-year return | -87.7% | -22.4% |
| Volatility (ann.) | 5140.2% | 38.6% |
| Beta vs S&P 500 | 17.01 | 0.86 |
| Max drawdown (3Y) | -99.5% | -53.8% |
| Market cap | – | $24.4B |
| P/E (trailing) | – | 44.8 |
| Dividend yield | 0.00% | 0.25% |
| Sector / category | US Listed | Health Care |
Year-by-year returns
| Year | BESS | WST |
|---|---|---|
| 2022 | -30.0% | -49.7% |
| 2023 | -14.3% | +50.0% |
| 2024 | +16.7% | -6.8% |
| 2025 | +7.1% | -15.7% |
| 2026 | -70.5% | +26.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BESS and WST good diversifiers for each other?
By historical standards, yes. A correlation of -0.50 means the two rarely move for the same reasons.
FAQ
What is the correlation between BESS and WST?
As of 2026-08-27, the correlation of weekly returns between BESS and WST is -0.50 over 3 years, -0.06 over 1 year and -0.39 over 5 years.
Is WST a good diversifier for BESS?
By historical standards, yes. A correlation of -0.50 means the two rarely move for the same reasons.
What does a correlation of -0.50 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/bess-vs-wst.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/bess-vs-wst/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BESS correlations · WST correlations
