CI vs QQQ: Correlation
Cigna (CI) and Invesco QQQ Trust (QQQ) show a near-zero relationship: their 3-year correlation of weekly returns is -0.01.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CI and QQQ?
On 3 years of weekly data the CI/QQQ correlation comes out at -0.01, near zero, meaning they move largely independently. Recent behaviour matches the longer record: -0.10 over 1 year against -0.01 over 3. The 5-year figure is 0.09, and annualized covariance runs at -6.6 %².
Within CI's tracked universe of 30 assets, QQQ comes in at #20 by 3-year correlation. Correlation aside, the last 12 months split them widely, with QQQ ahead by 31.7 points (-5.4% versus +26.3%). On a rolling one-year basis the correlation drifted between -0.14 and 0.15, a moderate band.
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.
CI vs QQQ: side by side
| CI (Cigna) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | -5.4% | +26.3% |
| 5-year return | +46.7% | +95.4% |
| Volatility (ann.) | 26.7% | 19.6% |
| Beta vs S&P 500 | 0.22 | 1.28 |
| Max drawdown (3Y) | -32.1% | -22.8% |
| Market cap | $73.4B | – |
| P/E (trailing) | 11.6 | – |
| Dividend yield | 2.19% | 0.44% |
| Expense ratio | – | 0.18% |
| Assets under management | – | $452.8B |
| Sector / category | Health Care | 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 | CI | QQQ |
|---|---|---|
| 2022 | +46.7% | -32.6% |
| 2023 | -8.0% | +54.9% |
| 2024 | -6.3% | +25.6% |
| 2025 | +1.7% | +20.8% |
| 2026 | +2.0% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CI and QQQ good diversifiers for each other?
Yes. With a correlation of -0.01, CI and QQQ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between CI and QQQ?
As of 2026-08-27, the correlation of weekly returns between CI and QQQ is -0.01 over 3 years, -0.10 over 1 year and 0.09 over 5 years.
Is QQQ a good diversifier for CI?
Yes. With a correlation of -0.01, CI and QQQ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.01 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/ci-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ci-vs-qqq/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: CI correlations · QQQ correlations
