CPK vs QQQ: Correlation
Chesapeake Utilities Corporation (CPK) and Invesco QQQ Trust (QQQ) show a near-zero relationship: their 3-year correlation of weekly returns is -0.05.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CPK and QQQ?
Over the past 3 years, CPK and QQQ moved with a correlation of -0.05, which is near zero, meaning they move largely independently. Lately the two have drifted apart, with the 1-year correlation at -0.23 versus -0.05 over 3 years. Over 5 years the correlation is 0.11, and the annualized covariance of weekly returns is -19.8 %².
QQQ is close to the least connected end of CPK's tracked universe, ranking #8 of 11. Correlation aside, the last 12 months split them widely, with QQQ ahead by 16.2 points (+10.1% versus +26.3%).
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.
CPK vs QQQ: side by side
| CPK (Chesapeake Utilities Corporation) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +10.1% | +26.3% |
| 5-year return | +13.6% | +95.4% |
| Volatility (ann.) | 20.5% | 19.6% |
| Beta vs S&P 500 | 0.12 | 1.28 |
| Max drawdown (3Y) | -22.0% | -22.8% |
| Market cap | $3.2B | – |
| P/E (trailing) | 21.4 | – |
| Dividend yield | 2.08% | 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 | CPK | QQQ |
|---|---|---|
| 2022 | -17.6% | -32.6% |
| 2023 | -8.8% | +54.9% |
| 2024 | +17.4% | +25.6% |
| 2025 | +5.1% | +20.8% |
| 2026 | +8.1% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CPK and QQQ good diversifiers for each other?
Yes: at -0.05, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between CPK and QQQ?
Using weekly returns as of 2026-08-27: -0.05 over 3 years, with -0.23 over the last year and 0.11 over 5 years.
Is QQQ a good diversifier for CPK?
Yes: at -0.05, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.05 mean?
A reading of -0.05 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/cpk-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/cpk-vs-qqq/)
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Related comparisons
Hubs: CPK correlations · QQQ correlations
