VTOL vs WFRD: Correlation
How closely do Bristow Group, Inc. (VTOL) and Weatherford International plc (WFRD) trade together? Their weekly returns over three years give a correlation of 0.61, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are VTOL and WFRD?
Over the past 3 years, VTOL and WFRD moved with a correlation of 0.61, which is strong. Recent behaviour matches the longer record: 0.59 over 1 year against 0.61 over 3. Over 5 years the correlation is 0.55, and the annualized covariance of weekly returns is 1070.9 %².
In VTOL's tracked universe of 15 assets, WFRD sits right near the top at #1. The last year tells two different stories: WFRD led by 24.6 percentage points, +21.5% for VTOL against +46.1% for WFRD.
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.
VTOL vs WFRD: side by side
| VTOL (Bristow Group, Inc.) | WFRD (Weatherford International plc) | |
|---|---|---|
| 1-year return | +21.5% | +46.1% |
| 5-year return | +49.4% | +495.5% |
| Volatility (ann.) | 38.0% | 46.3% |
| Beta vs S&P 500 | 1.00 | 1.32 |
| Max drawdown (3Y) | -35.3% | -70.6% |
| Market cap | $1.4B | $6.6B |
| P/E (trailing) | 13.0 | 17.4 |
| Dividend yield | 0.55% | 1.19% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | VTOL | WFRD |
|---|---|---|
| 2022 | -14.3% | +83.7% |
| 2023 | +4.2% | +92.1% |
| 2024 | +21.3% | -26.4% |
| 2025 | +6.8% | +11.1% |
| 2026 | +26.3% | +18.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are VTOL and WFRD good diversifiers for each other?
Only partially. A correlation of 0.61 means VTOL and WFRD share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between VTOL and WFRD?
Using weekly returns as of 2026-08-27: 0.61 over 3 years, with 0.59 over the last year and 0.55 over 5 years.
Is WFRD a good diversifier for VTOL?
Only partially. A correlation of 0.61 means VTOL and WFRD share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.61 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/vtol-vs-wfrd.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/vtol-vs-wfrd/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: VTOL correlations · WFRD correlations
