EFX vs USMV: Correlation
Measured on weekly returns over the past three years, Equifax (EFX) and iShares MSCI USA Min Vol Factor ETF (USMV) carry a correlation of 0.61, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are EFX and USMV?
On 3 years of weekly data the EFX/USMV correlation comes out at 0.61, strong. The relationship has been stable: the 1-year correlation (0.51) sits close to the 3-year figure. The 5-year figure is 0.63, and annualized covariance runs at 200.4 %².
USMV is one of the assets that tracks EFX most closely: it ranks #3 out of the 53 assets we track against EFX. Their recent paths diverged sharply: over the last 12 months USMV outperformed by 31.9 percentage points (-21.8% for EFX against +10.1% for USMV). Across three years, the rolling one-year figure varied moderately, from 0.47 to 0.75. One caveat on sizing: EFX is 3.4 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.
EFX vs USMV: side by side
| EFX (Equifax) | USMV (iShares MSCI USA Min Vol Factor ETF) | |
|---|---|---|
| 1-year return | -21.8% | +10.1% |
| 5-year return | -26.0% | +42.3% |
| Volatility (ann.) | 33.3% | 9.9% |
| Beta vs S&P 500 | 1.25 | 0.51 |
| Max drawdown (3Y) | -49.7% | -9.4% |
| Market cap | $22.4B | – |
| P/E (trailing) | 33.5 | – |
| Dividend yield | 1.11% | 1.48% |
| Expense ratio | – | 0.15% |
| Assets under management | – | $23.6B |
| Sector / category | Industrials | ETF · US Style |
USMV, iShares's Large Blend fund, carries $23.6B under management, 164 holdings, a 0.15% expense ratio, a 1.48% trailing dividend yield.
Year-by-year returns
| Year | EFX | USMV |
|---|---|---|
| 2022 | -33.1% | -9.4% |
| 2023 | +28.2% | +10.3% |
| 2024 | +3.7% | +15.7% |
| 2025 | -14.2% | +7.6% |
| 2026 | -11.7% | +9.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are EFX and USMV good diversifiers for each other?
Somewhat, no more. With 0.61 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between EFX and USMV?
The EFX/USMV correlation stands at 0.61 on a 3-year window (1 year: 0.51, 5 years: 0.63), computed from weekly returns as of 2026-08-27.
Is USMV a good diversifier for EFX?
Somewhat, no more. With 0.61 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.61 mean?
A reading of 0.61 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/efx-vs-usmv.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/efx-vs-usmv/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: EFX correlations · USMV correlations
