CISS vs QQQ: Correlation
C3is Inc. (CISS) and Invesco QQQ Trust (QQQ) show a near-zero relationship: their 3-year correlation of weekly returns is 0.03.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CISS and QQQ?
Over the past 3 years, CISS and QQQ moved with a correlation of 0.03, which is near zero, meaning they move largely independently. Recent behaviour matches the longer record: 0.04 over 1 year against 0.03 over 3. Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is 1066.2 %².
Within CISS's tracked universe of 42 assets, QQQ comes in at #18 by 3-year correlation. Correlation aside, the last 12 months split them widely, with QQQ ahead by 125.8 points (-99.5% versus +26.3%). Note the risk asymmetry: CISS runs 107.1 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
CISS vs QQQ: side by side
| CISS (C3is Inc.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | -99.5% | +26.3% |
| 5-year return | n/a | +95.4% |
| Volatility (ann.) | 2098.5% | 19.6% |
| Beta vs S&P 500 | 2.24 | 1.28 |
| Max drawdown (3Y) | -100.0% | -22.8% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 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 | CISS | QQQ |
|---|---|---|
| 2022 | – | -32.6% |
| 2023 | – | +54.9% |
| 2024 | -98.9% | +25.6% |
| 2025 | -97.3% | +20.8% |
| 2026 | -93.4% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CISS and QQQ good diversifiers for each other?
By historical standards, yes. A correlation of 0.03 means the two rarely move for the same reasons.
FAQ
What is the correlation between CISS and QQQ?
Using weekly returns as of 2026-08-27: 0.03 over 3 years, with 0.04 over the last year and n/a over 5 years.
Is QQQ a good diversifier for CISS?
By historical standards, yes. A correlation of 0.03 means the two rarely move for the same reasons.
What does a correlation of 0.03 mean?
A reading of 0.03 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/ciss-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ciss-vs-qqq/)
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Related comparisons
Hubs: CISS correlations · QQQ correlations
