APT vs QQQ: Correlation
Alpha Pro Tech, Ltd. (APT) and Invesco QQQ Trust (QQQ) show a weak relationship: their 3-year correlation of weekly returns is 0.25.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are APT and QQQ?
On 3 years of weekly data the APT/QQQ correlation comes out at 0.25, weak. The past 12 months show a tighter link (0.37) than the 3-year average (0.25). The 5-year figure is 0.20, and annualized covariance runs at 203.1 %².
Among the 12 assets we track against APT, QQQ sits near the bottom by co-movement, at rank #8. Over the last 12 months QQQ came out ahead by 13.5 percentage points (+12.8% against +26.3%). One caveat on sizing: APT is 2.1 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
APT vs QQQ: side by side
| APT (Alpha Pro Tech, Ltd.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +12.8% | +26.3% |
| 5-year return | -33.5% | +95.4% |
| Volatility (ann.) | 42.0% | 19.6% |
| Beta vs S&P 500 | 0.65 | 1.28 |
| Max drawdown (3Y) | -39.0% | -22.8% |
| Market cap | $0.1B | – |
| P/E (trailing) | 14.0 | – |
| 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 | APT | QQQ |
|---|---|---|
| 2022 | -32.7% | -32.6% |
| 2023 | +31.6% | +54.9% |
| 2024 | +0.0% | +25.6% |
| 2025 | -16.1% | +20.8% |
| 2026 | +23.2% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are APT and QQQ good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.25 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between APT and QQQ?
Using weekly returns as of 2026-08-27: 0.25 over 3 years, with 0.37 over the last year and 0.20 over 5 years.
Is QQQ a good diversifier for APT?
Yes, to a useful degree: a correlation of 0.25 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.25 mean?
On the −1 to +1 scale, 0.25 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/apt-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/apt-vs-qqq/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: APT correlations · QQQ correlations
