ICU vs QQQ: Correlation
Measured on weekly returns over the past three years, SeaStar Medical Holding Corporation (ICU) and Invesco QQQ Trust (QQQ) carry a correlation of 0.07, a near-zero link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ICU and QQQ?
On 3 years of weekly data the ICU/QQQ correlation comes out at 0.07, near zero, meaning they move largely independently. The link has tightened recently: the 1-year correlation (0.31) runs above the 3-year figure (0.07). The 5-year figure is 0.06, and annualized covariance runs at 207.2 %².
Among the 10 assets we track against ICU, QQQ sits near the bottom by co-movement, at rank #7. Their recent paths diverged sharply: over the last 12 months QQQ outperformed by 89.7 percentage points (-63.4% for ICU against +26.3% for QQQ). One caveat on sizing: ICU is 8.0 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
ICU vs QQQ: side by side
| ICU (SeaStar Medical Holding Corporation) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | -63.4% | +26.3% |
| 5-year return | -99.9% | +95.4% |
| Volatility (ann.) | 156.9% | 19.6% |
| Beta vs S&P 500 | 0.82 | 1.28 |
| Max drawdown (3Y) | -99.4% | -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 | ICU | QQQ |
|---|---|---|
| 2022 | -59.2% | -32.6% |
| 2023 | -89.2% | +54.9% |
| 2024 | -82.5% | +25.6% |
| 2025 | -87.6% | +20.8% |
| 2026 | +29.2% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ICU and QQQ good diversifiers for each other?
Yes. With a correlation of 0.07, ICU and QQQ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between ICU and QQQ?
Using weekly returns as of 2026-08-27: 0.07 over 3 years, with 0.31 over the last year and 0.06 over 5 years.
Is QQQ a good diversifier for ICU?
Yes. With a correlation of 0.07, ICU and QQQ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of 0.07 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
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Hubs: ICU correlations · QQQ correlations
