CSCO vs QQQ: Correlation
Cisco (CSCO) and Invesco QQQ Trust (QQQ) show a moderate relationship: their 3-year correlation of weekly returns is 0.42.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CSCO and QQQ?
Across a 3-year window, the weekly returns of CSCO and QQQ correlate at 0.42, moderate. Lately the two have drifted apart, with the 1-year correlation at 0.25 versus 0.42 over 3 years. Stretching to 5 years gives 0.48, with an annualized covariance of 215.7 %².
Within CSCO's tracked universe of 30 assets, QQQ comes in at #16 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months CSCO outperformed by 41.0 percentage points (+67.3% for CSCO against +26.3% for QQQ). This link changes with the market regime, having swung between 0.14 and 0.80 on a rolling one-year basis.
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.
CSCO vs QQQ: side by side
| CSCO (Cisco) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +67.3% | +26.3% |
| 5-year return | +118.1% | +95.4% |
| Volatility (ann.) | 26.4% | 19.6% |
| Beta vs S&P 500 | 0.84 | 1.28 |
| Max drawdown (3Y) | -20.2% | -22.8% |
| Market cap | $442.0B | – |
| P/E (trailing) | 33.8 | – |
| Dividend yield | 1.48% | 0.44% |
| Expense ratio | – | 0.18% |
| Assets under management | – | $452.8B |
| Sector / category | Information Technology | 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 | CSCO | QQQ |
|---|---|---|
| 2022 | -22.5% | -32.6% |
| 2023 | +9.3% | +54.9% |
| 2024 | +21.0% | +25.6% |
| 2025 | +33.5% | +20.8% |
| 2026 | +47.7% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Fund exposure
CSCO represents 1.96% of QQQ's portfolio, so part of any move in QQQ is CSCO itself, and the correlation between them is partly mechanical.
Are CSCO and QQQ good diversifiers for each other?
Reasonably. At 0.42, CSCO and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between CSCO and QQQ?
Using weekly returns as of 2026-08-27: 0.42 over 3 years, with 0.25 over the last year and 0.48 over 5 years.
Is QQQ a good diversifier for CSCO?
Reasonably. At 0.42, CSCO and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.42 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/csco-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/csco-vs-qqq/)
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Related comparisons
Hubs: CSCO correlations · QQQ correlations
