ECX vs QQQ: Correlation
ECARX Holdings Inc. - Class A (ECX) and Invesco QQQ Trust (QQQ) show a weak relationship: their 3-year correlation of weekly returns is 0.23.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ECX and QQQ?
Over the past 3 years, ECX and QQQ moved with a correlation of 0.23, which is weak. The past 12 months show a tighter link (0.37) than the 3-year average (0.23). Over 5 years the correlation is 0.19, and the annualized covariance of weekly returns is 420.9 %².
QQQ is close to the least connected end of ECX's tracked universe, ranking #8 of 12. Correlation aside, the last 12 months split them widely, with QQQ ahead by 59.4 points (-33.1% versus +26.3%). Note the risk asymmetry: ECX runs 4.7 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.
ECX vs QQQ: side by side
| ECX (ECARX Holdings Inc. - Class A) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | -33.1% | +26.3% |
| 5-year return | -88.9% | +95.4% |
| Volatility (ann.) | 93.0% | 19.6% |
| Beta vs S&P 500 | 1.61 | 1.28 |
| Max drawdown (3Y) | -82.6% | -22.8% |
| Market cap | $0.4B | – |
| 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 | ECX | QQQ |
|---|---|---|
| 2022 | -18.1% | -32.6% |
| 2023 | -60.5% | +54.9% |
| 2024 | -33.2% | +25.6% |
| 2025 | -18.5% | +20.8% |
| 2026 | -37.8% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ECX and QQQ good diversifiers for each other?
A fair diversifier. At 0.23, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between ECX and QQQ?
As of 2026-08-27, the correlation of weekly returns between ECX and QQQ is 0.23 over 3 years, 0.37 over 1 year and 0.19 over 5 years.
Is QQQ a good diversifier for ECX?
A fair diversifier. At 0.23, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.23 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.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/ecx-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ecx-vs-qqq/)
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Related comparisons
Hubs: ECX correlations · QQQ correlations
