DTI vs IEF: Correlation
Drilling Tools International Corporation (DTI) and iShares 7-10 Year Treasury Bond ETF (IEF) show a negative relationship: their 3-year correlation of weekly returns is -0.25.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are DTI and IEF?
Across a 3-year window, the weekly returns of DTI and IEF correlate at -0.25, negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.20) sits close to the 3-year figure. Stretching to 5 years gives -0.16, with an annualized covariance of -107.9 %².
Among the 13 assets we track against DTI, IEF sits near the bottom by co-movement, at rank #11. Their recent paths diverged sharply: over the last 12 months DTI outperformed by 29.6 percentage points (+30.5% for DTI against +0.9% for IEF). One caveat on sizing: DTI is 10.1 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
DTI vs IEF: side by side
| DTI (Drilling Tools International Corporation) | IEF (iShares 7-10 Year Treasury Bond ETF) | |
|---|---|---|
| 1-year return | +30.5% | +0.9% |
| 5-year return | -74.8% | -7.9% |
| Volatility (ann.) | 65.4% | 6.5% |
| Beta vs S&P 500 | 0.96 | 0.04 |
| Max drawdown (3Y) | -75.0% | -6.9% |
| Market cap | $0.1B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 3.96% |
| Expense ratio | – | 0.15% |
| Assets under management | – | $47.2B |
| Sector / category | US Listed | ETF · Bonds |
On the fund side, IEF sits in the Long Government category at iShares, with $47.2B under management, a 0.15% expense ratio, a 3.96% trailing dividend yield.
Year-by-year returns
| Year | DTI | IEF |
|---|---|---|
| 2022 | +4.0% | -15.2% |
| 2023 | -68.7% | +3.6% |
| 2024 | +2.2% | -0.6% |
| 2025 | -25.1% | +8.0% |
| 2026 | +1.2% | -0.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are DTI and IEF good diversifiers for each other?
Yes. With a correlation of -0.25, DTI and IEF have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between DTI and IEF?
As of 2026-08-27, the correlation of weekly returns between DTI and IEF is -0.25 over 3 years, -0.20 over 1 year and -0.16 over 5 years.
Is IEF a good diversifier for DTI?
Yes. With a correlation of -0.25, DTI and IEF have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.25 mean?
On the −1 to +1 scale, -0.25 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/dti-vs-ief.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/dti-vs-ief/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: DTI correlations · IEF correlations
