QQQ vs STC: Correlation
How closely do Invesco QQQ Trust (QQQ) and Stewart Information Services Corporation (STC) trade together? Their weekly returns over three years give a correlation of 0.25, which is weak.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are QQQ and STC?
Across a 3-year window, the weekly returns of QQQ and STC correlate at 0.25, weak. Recent behaviour matches the longer record: 0.17 over 1 year against 0.25 over 3. Stretching to 5 years gives 0.38, with an annualized covariance of 142.3 %².
Within QQQ's tracked universe of 4755 assets, STC comes in at #2176 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months QQQ outperformed by 27.8 percentage points (+26.3% for QQQ against -1.5% for STC).
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 STC: side by side
| QQQ (Invesco QQQ Trust) | STC (Stewart Information Services Corporation) | |
|---|---|---|
| 1-year return | +26.3% | -1.5% |
| 5-year return | +95.4% | +29.2% |
| Volatility (ann.) | 19.6% | 28.9% |
| Beta vs S&P 500 | 1.28 | 0.74 |
| Max drawdown (3Y) | -22.8% | -24.7% |
| Market cap | – | $2.1B |
| P/E (trailing) | – | 15.3 |
| Dividend yield | 0.44% | 3.00% |
| Expense ratio | 0.18% | – |
| Assets under management | $452.8B | – |
| Sector / category | ETF · US Growth & Tech | US Listed |
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 | QQQ | STC |
|---|---|---|
| 2022 | -32.6% | -44.6% |
| 2023 | +54.9% | +43.3% |
| 2024 | +25.6% | +18.2% |
| 2025 | +20.8% | +7.2% |
| 2026 | +17.7% | +1.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are QQQ and STC good diversifiers for each other?
A fair diversifier. At 0.25, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between QQQ and STC?
The QQQ/STC correlation stands at 0.25 on a 3-year window (1 year: 0.17, 5 years: 0.38), computed from weekly returns as of 2026-08-27.
Is STC a good diversifier for QQQ?
A fair diversifier. At 0.25, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.25 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/qqq-vs-stc.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/qqq-vs-stc/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: QQQ correlations · STC correlations
