IEF vs MTDR: Correlation
Measured on weekly returns over the past three years, iShares 7-10 Year Treasury Bond ETF (IEF) and Matador Resources Company (MTDR) carry a correlation of -0.24, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IEF and MTDR?
Across a 3-year window, the weekly returns of IEF and MTDR correlate at -0.24, negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.47 versus -0.24 over 3 years. Stretching to 5 years gives -0.16, with an annualized covariance of -63.1 %².
Within IEF's tracked universe of 48 assets, MTDR comes in at #29 by 3-year correlation. Correlation aside, the last 12 months split them widely, with MTDR ahead by 16.5 points (+0.9% versus +17.4%). Risk is not evenly split, since MTDR carries 6.2 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.
IEF vs MTDR: side by side
| IEF (iShares 7-10 Year Treasury Bond ETF) | MTDR (Matador Resources Company) | |
|---|---|---|
| 1-year return | +0.9% | +17.4% |
| 5-year return | -7.9% | +115.7% |
| Volatility (ann.) | 6.5% | 40.3% |
| Beta vs S&P 500 | 0.04 | 0.49 |
| Max drawdown (3Y) | -6.9% | -46.8% |
| Market cap | – | $7.0B |
| P/E (trailing) | – | 9.7 |
| Dividend yield | 3.96% | 2.60% |
| Expense ratio | 0.15% | – |
| Assets under management | $47.2B | – |
| Sector / category | ETF · Bonds | US Listed |
IEF is a Long Government fund from iShares: $47.2B under management, a 0.15% expense ratio, a 3.96% trailing dividend yield.
Year-by-year returns
| Year | IEF | MTDR |
|---|---|---|
| 2022 | -15.2% | +55.8% |
| 2023 | +3.6% | +0.6% |
| 2024 | -0.6% | +0.4% |
| 2025 | +8.0% | -22.3% |
| 2026 | -0.8% | +36.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are IEF and MTDR good diversifiers for each other?
Yes. With a correlation of -0.24, IEF and MTDR have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between IEF and MTDR?
The IEF/MTDR correlation stands at -0.24 on a 3-year window (1 year: -0.47, 5 years: -0.16), computed from weekly returns as of 2026-08-27.
Is MTDR a good diversifier for IEF?
Yes. With a correlation of -0.24, IEF and MTDR have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.24 mean?
A reading of -0.24 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/ief-vs-mtdr.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/ief-vs-mtdr/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: IEF correlations · MTDR correlations
