FTI vs OII: Correlation
TechnipFMC plc (FTI) and Oceaneering International, Inc. (OII) show a strong relationship: their 3-year correlation of weekly returns is 0.73.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FTI and OII?
On 3 years of weekly data the FTI/OII correlation comes out at 0.73, strong. The link has loosened recently: the 1-year correlation (0.59) runs below the 3-year figure (0.73). The 5-year figure is 0.68, and annualized covariance runs at 1163.3 %².
In FTI's tracked universe of 14 assets, OII sits right near the top at #2. Neither side won the trailing year by much: +109.4% against +109.9%.
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.
FTI vs OII: side by side
| FTI (TechnipFMC plc) | OII (Oceaneering International, Inc.) | |
|---|---|---|
| 1-year return | +109.4% | +109.9% |
| 5-year return | +1078.9% | +316.7% |
| Volatility (ann.) | 36.4% | 43.5% |
| Beta vs S&P 500 | 0.70 | 0.81 |
| Max drawdown (3Y) | -28.9% | -47.8% |
| Market cap | $29.9B | $5.1B |
| P/E (trailing) | 26.5 | 14.8 |
| Dividend yield | 0.26% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | FTI | OII |
|---|---|---|
| 2022 | +105.9% | +54.6% |
| 2023 | +66.1% | +21.7% |
| 2024 | +44.8% | +22.6% |
| 2025 | +54.9% | -7.9% |
| 2026 | +71.6% | +113.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FTI and OII good diversifiers for each other?
To a limited degree. At 0.73 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between FTI and OII?
Using weekly returns as of 2026-08-27: 0.73 over 3 years, with 0.59 over the last year and 0.68 over 5 years.
Is OII a good diversifier for FTI?
To a limited degree. At 0.73 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.73 mean?
On the −1 to +1 scale, 0.73 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/fti-vs-oii.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/fti-vs-oii/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: FTI correlations · OII correlations
