KEX vs VTOL: Correlation
How closely do Kirby Corporation (KEX) and Bristow Group, Inc. (VTOL) trade together? Their weekly returns over three years give a correlation of 0.53, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are KEX and VTOL?
Across a 3-year window, the weekly returns of KEX and VTOL correlate at 0.53, moderate. The link has loosened recently: the 1-year correlation (0.43) runs below the 3-year figure (0.53). Stretching to 5 years gives 0.57, with an annualized covariance of 677.0 %².
VTOL is one of the assets that tracks KEX most closely: it ranks #3 out of the 10 assets we track against KEX. The last year tells two different stories: KEX led by 20.8 percentage points, +42.3% for KEX against +21.5% for VTOL.
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.
KEX vs VTOL: side by side
| KEX (Kirby Corporation) | VTOL (Bristow Group, Inc.) | |
|---|---|---|
| 1-year return | +42.3% | +21.5% |
| 5-year return | +160.1% | +49.4% |
| Volatility (ann.) | 33.9% | 38.0% |
| Beta vs S&P 500 | 1.08 | 1.00 |
| Max drawdown (3Y) | -38.8% | -35.3% |
| Market cap | $7.4B | $1.4B |
| P/E (trailing) | 21.5 | 13.0 |
| Dividend yield | 0.00% | 0.55% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | KEX | VTOL |
|---|---|---|
| 2022 | +8.3% | -14.3% |
| 2023 | +22.0% | +4.2% |
| 2024 | +34.8% | +21.3% |
| 2025 | +4.1% | +6.8% |
| 2026 | +26.9% | +26.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are KEX and VTOL good diversifiers for each other?
Only partially. A correlation of 0.53 means KEX and VTOL 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 KEX and VTOL?
As of 2026-08-27, the correlation of weekly returns between KEX and VTOL is 0.53 over 3 years, 0.43 over 1 year and 0.57 over 5 years.
Is VTOL a good diversifier for KEX?
Only partially. A correlation of 0.53 means KEX and VTOL share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.53 mean?
On the −1 to +1 scale, 0.53 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/kex-vs-vtol.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/kex-vs-vtol/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: KEX correlations · VTOL correlations
