EFA vs MXC: Correlation
Measured on weekly returns over the past three years, iShares MSCI EAFE ETF (EFA) and Mexco Energy Corporation (MXC) carry a correlation of -0.18, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are EFA and MXC?
Over the past 3 years, EFA and MXC moved with a correlation of -0.18, which is negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.37 versus -0.18 over 3 years. Over 5 years the correlation is -0.13, and the annualized covariance of weekly returns is -170.9 %².
Among the 109 assets we track against EFA, MXC ranks #101 by 3-year correlation. Their 12-month results are close: +21.9% for EFA against +21.6% for MXC. Risk is not evenly split, since MXC carries 4.2 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.
EFA vs MXC: side by side
| EFA (iShares MSCI EAFE ETF) | MXC (Mexco Energy Corporation) | |
|---|---|---|
| 1-year return | +21.9% | +21.6% |
| 5-year return | +56.7% | +7.2% |
| Volatility (ann.) | 14.9% | 62.1% |
| Beta vs S&P 500 | 0.77 | -0.31 |
| Max drawdown (3Y) | -14.1% | -60.6% |
| Market cap | – | – |
| P/E (trailing) | – | 13.0 |
| Dividend yield | 3.19% | 1.02% |
| Expense ratio | 0.32% | – |
| Assets under management | $78.0B | – |
| Sector / category | ETF · International | US Listed |
EFA, iShares's Foreign Large Blend fund, carries $78.0B under management, 666 holdings, a 0.32% expense ratio, a 3.19% trailing dividend yield.
Year-by-year returns
| Year | EFA | MXC |
|---|---|---|
| 2022 | -14.4% | +33.0% |
| 2023 | +18.4% | -26.2% |
| 2024 | +3.5% | +24.6% |
| 2025 | +31.5% | -10.8% |
| 2026 | +14.3% | -0.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are EFA and MXC good diversifiers for each other?
By historical standards, yes. A correlation of -0.18 means the two rarely move for the same reasons.
FAQ
What is the correlation between EFA and MXC?
Using weekly returns as of 2026-08-27: -0.18 over 3 years, with -0.37 over the last year and -0.13 over 5 years.
Is MXC a good diversifier for EFA?
By historical standards, yes. A correlation of -0.18 means the two rarely move for the same reasons.
What does a correlation of -0.18 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/efa-vs-mxc.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/efa-vs-mxc/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: EFA correlations · MXC correlations
