PRCT vs QQQ: Correlation
How closely do PROCEPT BioRobotics Corporation (PRCT) and Invesco QQQ Trust (QQQ) trade together? Their weekly returns over three years give a correlation of 0.25, which is weak.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PRCT and QQQ?
On 3 years of weekly data the PRCT/QQQ correlation comes out at 0.25, weak. The link has loosened recently: the 1-year correlation (0.12) runs below the 3-year figure (0.25). The 5-year figure is 0.35, and annualized covariance runs at 268.1 %².
QQQ is close to the least connected end of PRCT's tracked universe, ranking #8 of 11. The last year tells two different stories: QQQ led by 75.8 percentage points, -49.5% for PRCT against +26.3% for QQQ. Risk is not evenly split, since PRCT carries 2.9 times the volatility of the other side.
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.
PRCT vs QQQ: side by side
| PRCT (PROCEPT BioRobotics Corporation) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | -49.5% | +26.3% |
| 5-year return | -50.9% | +95.4% |
| Volatility (ann.) | 55.9% | 19.6% |
| Beta vs S&P 500 | 1.08 | 1.28 |
| Max drawdown (3Y) | -83.2% | -22.8% |
| Market cap | $1.2B | – |
| 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 | PRCT | QQQ |
|---|---|---|
| 2022 | +66.1% | -32.6% |
| 2023 | +0.9% | +54.9% |
| 2024 | +92.1% | +25.6% |
| 2025 | -60.9% | +20.8% |
| 2026 | -34.5% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PRCT and QQQ good diversifiers for each other?
Reasonably. At 0.25, PRCT and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between PRCT and QQQ?
As of 2026-08-27, the correlation of weekly returns between PRCT and QQQ is 0.25 over 3 years, 0.12 over 1 year and 0.35 over 5 years.
Is QQQ a good diversifier for PRCT?
Reasonably. At 0.25, PRCT and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio 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/prct-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/prct-vs-qqq/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: PRCT correlations · QQQ correlations
