EPAC vs MDY: Correlation
Measured on weekly returns over the past three years, Enerpac Tool Group Corp. (EPAC) and SPDR S&P MidCap 400 ETF (MDY) carry a correlation of 0.53, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are EPAC and MDY?
On 3 years of weekly data the EPAC/MDY correlation comes out at 0.53, moderate. Little has changed lately, as the 1-year reading of 0.57 lands near the 3-year figure. The 5-year figure is 0.54, and annualized covariance runs at 249.3 %².
By 3-year correlation, MDY places #4 of the 10 assets tracked against EPAC. The last year tells two different stories: MDY led by 30.6 percentage points, -12.3% for EPAC against +18.3% for MDY. Risk is not evenly split, since EPAC carries 1.7 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.
EPAC vs MDY: side by side
| EPAC (Enerpac Tool Group Corp.) | MDY (SPDR S&P MidCap 400 ETF) | |
|---|---|---|
| 1-year return | -12.3% | +18.3% |
| 5-year return | +50.0% | +47.5% |
| Volatility (ann.) | 28.6% | 16.5% |
| Beta vs S&P 500 | 0.80 | 0.91 |
| Max drawdown (3Y) | -36.1% | -24.0% |
| Market cap | $1.9B | – |
| P/E (trailing) | 21.4 | – |
| Dividend yield | 0.11% | 1.02% |
| Expense ratio | – | 0.23% |
| Assets under management | – | $26.5B |
| Sector / category | US Listed | ETF · US Small & Mid Cap |
MDY, State Street Investment Management's Mid-Cap Blend fund, carries $26.5B under management, 400 holdings, a 0.23% expense ratio, a 1.02% trailing dividend yield.
Year-by-year returns
| Year | EPAC | MDY |
|---|---|---|
| 2022 | +25.7% | -13.3% |
| 2023 | +22.3% | +16.1% |
| 2024 | +32.3% | +13.6% |
| 2025 | -6.8% | +7.2% |
| 2026 | -1.9% | +16.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are EPAC and MDY good diversifiers for each other?
Somewhat, no more. With 0.53 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between EPAC and MDY?
As of 2026-08-27, the correlation of weekly returns between EPAC and MDY is 0.53 over 3 years, 0.57 over 1 year and 0.54 over 5 years.
Is MDY a good diversifier for EPAC?
Somewhat, no more. With 0.53 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.53 mean?
On the −1 to +1 scale, 0.53 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.
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Related comparisons
Hubs: EPAC correlations · MDY correlations
