QQQ vs SEIC: Correlation
Invesco QQQ Trust (QQQ) and SEI Investments Company (SEIC) show a moderate relationship: their 3-year correlation of weekly returns is 0.54.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are QQQ and SEIC?
On 3 years of weekly data the QQQ/SEIC correlation comes out at 0.54, moderate. The link has loosened recently: the 1-year correlation (0.28) runs below the 3-year figure (0.54). The 5-year figure is 0.61, and annualized covariance runs at 217.7 %².
Within QQQ's tracked universe of 4755 assets, SEIC comes in at #212 by 3-year correlation. Neither side won the trailing year by much: +26.3% against +24.4%.
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.
QQQ vs SEIC: side by side
| QQQ (Invesco QQQ Trust) | SEIC (SEI Investments Company) | |
|---|---|---|
| 1-year return | +26.3% | +24.4% |
| 5-year return | +95.4% | +89.5% |
| Volatility (ann.) | 19.6% | 20.7% |
| Beta vs S&P 500 | 1.28 | 0.91 |
| Max drawdown (3Y) | -22.8% | -23.3% |
| Market cap | – | $13.4B |
| P/E (trailing) | – | 19.6 |
| Dividend yield | 0.44% | 0.94% |
| Expense ratio | 0.18% | – |
| Assets under management | $452.8B | – |
| Sector / category | ETF · US Growth & Tech | US Listed |
On the fund side, QQQ sits in the Large Growth category at Invesco, with $452.8B under management, 104 holdings, a 0.18% expense ratio, a 0.44% trailing dividend yield.
Year-by-year returns
| Year | QQQ | SEIC |
|---|---|---|
| 2022 | -32.6% | -2.9% |
| 2023 | +54.9% | +10.6% |
| 2024 | +25.6% | +31.5% |
| 2025 | +20.8% | +0.6% |
| 2026 | +17.7% | +36.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are QQQ and SEIC good diversifiers for each other?
Somewhat, no more. With 0.54 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between QQQ and SEIC?
As of 2026-08-27, the correlation of weekly returns between QQQ and SEIC is 0.54 over 3 years, 0.28 over 1 year and 0.61 over 5 years.
Is SEIC a good diversifier for QQQ?
Somewhat, no more. With 0.54 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.54 mean?
A reading of 0.54 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: QQQ correlations · SEIC correlations
