PFE vs QQQ: Correlation
Pfizer (PFE) and Invesco QQQ Trust (QQQ) show a weak relationship: their 3-year correlation of weekly returns is 0.14.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PFE and QQQ?
On 3 years of weekly data the PFE/QQQ correlation comes out at 0.14, weak. Recent behaviour matches the longer record: 0.11 over 1 year against 0.14 over 3. The 5-year figure is 0.22, and annualized covariance runs at 63.8 %².
Among the 32 assets we track against PFE, QQQ ranks #22 by 3-year correlation. Over the last 12 months QQQ came out ahead by 6.7 percentage points (+19.6% against +26.3%). The relationship is regime-dependent: the rolling one-year correlation swung between -0.18 and 0.32 over the past three years, so this pair behaves very differently depending on the market environment.
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.
PFE vs QQQ: side by side
| PFE (Pfizer) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +19.6% | +26.3% |
| 5-year return | -21.9% | +95.4% |
| Volatility (ann.) | 23.8% | 19.6% |
| Beta vs S&P 500 | 0.40 | 1.28 |
| Max drawdown (3Y) | -34.8% | -22.8% |
| Market cap | $159.7B | – |
| P/E (trailing) | 37.4 | – |
| Dividend yield | 6.08% | 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 | PFE | QQQ |
|---|---|---|
| 2022 | -10.4% | -32.6% |
| 2023 | -41.3% | +54.9% |
| 2024 | -2.2% | +25.6% |
| 2025 | +0.6% | +20.8% |
| 2026 | +18.3% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PFE and QQQ good diversifiers for each other?
Yes. With a correlation of 0.14, PFE and QQQ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between PFE and QQQ?
Using weekly returns as of 2026-08-27: 0.14 over 3 years, with 0.11 over the last year and 0.22 over 5 years.
Is QQQ a good diversifier for PFE?
Yes. With a correlation of 0.14, PFE and QQQ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of 0.14 mean?
A reading of 0.14 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/pfe-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/pfe-vs-qqq/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: PFE correlations · QQQ correlations
