ELMD vs QQQ: Correlation
Electromed, Inc. (ELMD) and Invesco QQQ Trust (QQQ) show a weak relationship: their 3-year correlation of weekly returns is 0.12.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ELMD and QQQ?
Across a 3-year window, the weekly returns of ELMD and QQQ correlate at 0.12, weak. Recent behaviour matches the longer record: 0.13 over 1 year against 0.12 over 3. Stretching to 5 years gives 0.14, with an annualized covariance of 117.0 %².
Among the 12 assets we track against ELMD, QQQ ranks #7 by 3-year correlation. Their 12-month results are close: +21.7% for ELMD against +26.3% for QQQ. Risk is not evenly split, since ELMD carries 2.5 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.
ELMD vs QQQ: side by side
| ELMD (Electromed, Inc.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +21.7% | +26.3% |
| 5-year return | +144.2% | +95.4% |
| Volatility (ann.) | 48.9% | 19.6% |
| Beta vs S&P 500 | 0.63 | 1.28 |
| Max drawdown (3Y) | -48.9% | -22.8% |
| Market cap | $0.3B | – |
| P/E (trailing) | 24.5 | – |
| Dividend yield | 0.00% | 0.44% |
| Expense ratio | – | 0.18% |
| Assets under management | – | $452.8B |
| Sector / category | US Listed | ETF · US Growth & Tech |
QQQ is a Large Growth fund from Invesco: $452.8B under management, 104 holdings, a 0.18% expense ratio, a 0.44% trailing dividend yield.
Year-by-year returns
| Year | ELMD | QQQ |
|---|---|---|
| 2022 | -19.3% | -32.6% |
| 2023 | +4.0% | +54.9% |
| 2024 | +170.9% | +25.6% |
| 2025 | -1.5% | +20.8% |
| 2026 | +3.5% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ELMD and QQQ good diversifiers for each other?
Yes: at 0.12, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between ELMD and QQQ?
As of 2026-08-27, the correlation of weekly returns between ELMD and QQQ is 0.12 over 3 years, 0.13 over 1 year and 0.14 over 5 years.
Is QQQ a good diversifier for ELMD?
Yes: at 0.12, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of 0.12 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.
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Related comparisons
Hubs: ELMD correlations · QQQ correlations
