MLSS vs QQQ: Correlation
Measured on weekly returns over the past three years, Milestone Scientific, Inc. (MLSS) and Invesco QQQ Trust (QQQ) carry a correlation of 0.14, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MLSS and QQQ?
Across a 3-year window, the weekly returns of MLSS and QQQ correlate at 0.14, weak. Recent behaviour matches the longer record: 0.20 over 1 year against 0.14 over 3. Stretching to 5 years gives 0.24, with an annualized covariance of 232.1 %².
Among the 10 assets we track against MLSS, QQQ sits near the bottom by co-movement, at rank #6. Their recent paths diverged sharply: over the last 12 months QQQ outperformed by 42.1 percentage points (-15.8% for MLSS against +26.3% for QQQ). Note the risk asymmetry: MLSS runs 4.3 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
MLSS vs QQQ: side by side
| MLSS (Milestone Scientific, Inc.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | -15.8% | +26.3% |
| 5-year return | -72.6% | +95.4% |
| Volatility (ann.) | 84.1% | 19.6% |
| Beta vs S&P 500 | 0.81 | 1.28 |
| Max drawdown (3Y) | -81.2% | -22.8% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| 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 | MLSS | QQQ |
|---|---|---|
| 2022 | -76.7% | -32.6% |
| 2023 | +43.8% | +54.9% |
| 2024 | +39.1% | +25.6% |
| 2025 | -71.9% | +20.8% |
| 2026 | +87.0% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MLSS and QQQ good diversifiers for each other?
Yes. With a correlation of 0.14, MLSS and QQQ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between MLSS and QQQ?
Using weekly returns as of 2026-08-27: 0.14 over 3 years, with 0.20 over the last year and 0.24 over 5 years.
Is QQQ a good diversifier for MLSS?
Yes. With a correlation of 0.14, MLSS and QQQ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of 0.14 mean?
On the −1 to +1 scale, 0.14 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: MLSS correlations · QQQ correlations
