PROF vs QQQ: Correlation
How closely do Profound Medical Corp. (PROF) and Invesco QQQ Trust (QQQ) trade together? Their weekly returns over three years give a correlation of 0.19, which is weak.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PROF and QQQ?
Over the past 3 years, PROF and QQQ moved with a correlation of 0.19, which is weak. Recent behaviour matches the longer record: 0.15 over 1 year against 0.19 over 3. Over 5 years the correlation is 0.19, and the annualized covariance of weekly returns is 217.8 %².
Among the 10 assets we track against PROF, QQQ sits near the bottom by co-movement, at rank #7. Correlation aside, the last 12 months split them widely, with PROF ahead by 27.7 points (+54.0% versus +26.3%). Risk is not evenly split, since PROF carries 3.0 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.
PROF vs QQQ: side by side
| PROF (Profound Medical Corp.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +54.0% | +26.3% |
| 5-year return | -53.1% | +95.4% |
| Volatility (ann.) | 59.6% | 19.6% |
| Beta vs S&P 500 | 0.92 | 1.28 |
| Max drawdown (3Y) | -65.4% | -22.8% |
| Market cap | $0.3B | – |
| 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 | PROF | QQQ |
|---|---|---|
| 2022 | -3.0% | -32.6% |
| 2023 | -22.0% | +54.9% |
| 2024 | -11.5% | +25.6% |
| 2025 | +4.8% | +20.8% |
| 2026 | -11.6% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PROF and QQQ good diversifiers for each other?
Yes: at 0.19, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between PROF and QQQ?
As of 2026-08-27, the correlation of weekly returns between PROF and QQQ is 0.19 over 3 years, 0.15 over 1 year and 0.19 over 5 years.
Is QQQ a good diversifier for PROF?
Yes: at 0.19, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of 0.19 mean?
A reading of 0.19 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
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Related comparisons
Hubs: PROF correlations · QQQ correlations
