POWI vs QQQ: Correlation
How closely do Power Integrations, Inc. (POWI) and Invesco QQQ Trust (QQQ) trade together? Their weekly returns over three years give a correlation of 0.52, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are POWI and QQQ?
On 3 years of weekly data the POWI/QQQ correlation comes out at 0.52, moderate. The relationship has been stable: the 1-year correlation (0.47) sits close to the 3-year figure. The 5-year figure is 0.56, and annualized covariance runs at 474.3 %².
By 3-year correlation, QQQ places #9 of the 17 assets tracked against POWI. On 12-month performance QQQ holds a 5.8-point edge, +20.5% against +26.3%. Note the risk asymmetry: POWI runs 2.4 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.
POWI vs QQQ: side by side
| POWI (Power Integrations, Inc.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +20.5% | +26.3% |
| 5-year return | -46.7% | +95.4% |
| Volatility (ann.) | 46.5% | 19.6% |
| Beta vs S&P 500 | 1.59 | 1.28 |
| Max drawdown (3Y) | -63.6% | -22.8% |
| Market cap | $3.1B | – |
| P/E (trailing) | 125.7 | – |
| Dividend yield | 1.55% | 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 | POWI | QQQ |
|---|---|---|
| 2022 | -22.1% | -32.6% |
| 2023 | +15.6% | +54.9% |
| 2024 | -24.0% | +25.6% |
| 2025 | -41.3% | +20.8% |
| 2026 | +56.7% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are POWI and QQQ good diversifiers for each other?
Only partially. A correlation of 0.52 means POWI and QQQ share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between POWI and QQQ?
As of 2026-08-27, the correlation of weekly returns between POWI and QQQ is 0.52 over 3 years, 0.47 over 1 year and 0.56 over 5 years.
Is QQQ a good diversifier for POWI?
Only partially. A correlation of 0.52 means POWI and QQQ share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.52 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/powi-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/powi-vs-qqq/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: POWI correlations · QQQ correlations
