PCB vs QQQ: Correlation
Measured on weekly returns over the past three years, PCB Bancorp (PCB) and Invesco QQQ Trust (QQQ) carry a correlation of 0.26, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PCB and QQQ?
Over the past 3 years, PCB and QQQ moved with a correlation of 0.26, which is weak. Lately the two have drifted apart, with the 1-year correlation at 0.06 versus 0.26 over 3 years. Over 5 years the correlation is 0.27, and the annualized covariance of weekly returns is 132.2 %².
Out of 20 assets tracked against PCB, QQQ lands near the bottom at #17. Neither side won the trailing year by much: +29.1% against +26.3%.
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.
PCB vs QQQ: side by side
| PCB (PCB Bancorp) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +29.1% | +26.3% |
| 5-year return | +74.8% | +95.4% |
| Volatility (ann.) | 26.3% | 19.6% |
| Beta vs S&P 500 | 0.69 | 1.28 |
| Max drawdown (3Y) | -22.8% | -22.8% |
| Market cap | $0.4B | – |
| P/E (trailing) | 9.5 | – |
| Dividend yield | 3.04% | 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 | PCB | QQQ |
|---|---|---|
| 2022 | -17.0% | -32.6% |
| 2023 | +8.9% | +54.9% |
| 2024 | +14.6% | +25.6% |
| 2025 | +11.2% | +20.8% |
| 2026 | +30.5% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PCB and QQQ good diversifiers for each other?
Reasonably. At 0.26, PCB and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between PCB and QQQ?
Using weekly returns as of 2026-08-27: 0.26 over 3 years, with 0.06 over the last year and 0.27 over 5 years.
Is QQQ a good diversifier for PCB?
Reasonably. At 0.26, PCB and QQQ keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.26 mean?
A reading of 0.26 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/pcb-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/pcb-vs-qqq/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: PCB correlations · QQQ correlations
