CASY vs QQQ: Correlation
Measured on weekly returns over the past three years, Casey's (CASY) and Invesco QQQ Trust (QQQ) carry a correlation of 0.17, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CASY and QQQ?
On 3 years of weekly data the CASY/QQQ correlation comes out at 0.17, weak. The past 12 months show a weaker link (0.02) than the 3-year average (0.17). The 5-year figure is 0.27, and annualized covariance runs at 94.3 %².
Within CASY's tracked universe of 30 assets, QQQ comes in at #20 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months CASY outperformed by 27.4 percentage points (+53.7% for CASY against +26.3% for QQQ). Across three years, the rolling one-year figure varied moderately, from -0.06 to 0.43.
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.
CASY vs QQQ: side by side
| CASY (Casey's) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +53.7% | +26.3% |
| 5-year return | +284.3% | +95.4% |
| Volatility (ann.) | 28.9% | 19.6% |
| Beta vs S&P 500 | 0.39 | 1.28 |
| Max drawdown (3Y) | -16.6% | -22.8% |
| Market cap | $28.2B | – |
| P/E (trailing) | 42.2 | – |
| Dividend yield | 0.28% | 0.44% |
| Expense ratio | – | 0.18% |
| Assets under management | – | $452.8B |
| Sector / category | Consumer Staples | 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 | CASY | QQQ |
|---|---|---|
| 2022 | +14.5% | -32.6% |
| 2023 | +23.3% | +54.9% |
| 2024 | +45.0% | +25.6% |
| 2025 | +40.1% | +20.8% |
| 2026 | +38.4% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CASY and QQQ good diversifiers for each other?
By historical standards, yes. A correlation of 0.17 means the two rarely move for the same reasons.
FAQ
What is the correlation between CASY and QQQ?
Using weekly returns as of 2026-08-27: 0.17 over 3 years, with 0.02 over the last year and 0.27 over 5 years.
Is QQQ a good diversifier for CASY?
By historical standards, yes. A correlation of 0.17 means the two rarely move for the same reasons.
What does a correlation of 0.17 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/casy-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/casy-vs-qqq/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: CASY correlations · QQQ correlations
