CDNA vs QQQ: Correlation
Measured on weekly returns over the past three years, CareDx, Inc. (CDNA) and Invesco QQQ Trust (QQQ) carry a correlation of 0.21, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CDNA and QQQ?
Across a 3-year window, the weekly returns of CDNA and QQQ correlate at 0.21, weak. The link has loosened recently: the 1-year correlation (0.02) runs below the 3-year figure (0.21). Stretching to 5 years gives 0.29, with an annualized covariance of 335.5 %².
Among the 10 assets we track against CDNA, QQQ sits near the bottom by co-movement, at rank #7. The last year tells two different stories: CDNA led by 267.7 percentage points, +294.0% for CDNA against +26.3% for QQQ. Risk is not evenly split, since CDNA carries 4.3 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.
CDNA vs QQQ: side by side
| CDNA (CareDx, Inc.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +294.0% | +26.3% |
| 5-year return | -35.0% | +95.4% |
| Volatility (ann.) | 83.5% | 19.6% |
| Beta vs S&P 500 | 1.46 | 1.28 |
| Max drawdown (3Y) | -66.0% | -22.8% |
| Market cap | $2.7B | – |
| 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 | CDNA | QQQ |
|---|---|---|
| 2022 | -74.9% | -32.6% |
| 2023 | +5.2% | +54.9% |
| 2024 | +78.4% | +25.6% |
| 2025 | -12.0% | +20.8% |
| 2026 | +177.9% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CDNA and QQQ good diversifiers for each other?
A fair diversifier. At 0.21, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between CDNA and QQQ?
Using weekly returns as of 2026-08-27: 0.21 over 3 years, with 0.02 over the last year and 0.29 over 5 years.
Is QQQ a good diversifier for CDNA?
A fair diversifier. At 0.21, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.21 mean?
A reading of 0.21 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/cdna-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/cdna-vs-qqq/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: CDNA correlations · QQQ correlations
