PLBC vs QQQ: Correlation
Measured on weekly returns over the past three years, Plumas Bancorp (PLBC) and Invesco QQQ Trust (QQQ) carry a correlation of 0.08, a near-zero link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PLBC and QQQ?
Across a 3-year window, the weekly returns of PLBC and QQQ correlate at 0.08, near zero, meaning they move largely independently. Lately the two have drifted apart, with the 1-year correlation at -0.06 versus 0.08 over 3 years. Stretching to 5 years gives 0.11, with an annualized covariance of 50.5 %².
Out of 16 assets tracked against PLBC, QQQ lands near the bottom at #13. Their recent paths diverged sharply: over the last 12 months PLBC outperformed by 19.0 percentage points (+45.3% for PLBC against +26.3% for QQQ). One caveat on sizing: PLBC is 1.6 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.
PLBC vs QQQ: side by side
| PLBC (Plumas Bancorp) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +45.3% | +26.3% |
| 5-year return | +114.6% | +95.4% |
| Volatility (ann.) | 30.5% | 19.6% |
| Beta vs S&P 500 | 0.37 | 1.28 |
| Max drawdown (3Y) | -26.7% | -22.8% |
| Market cap | $0.4B | – |
| P/E (trailing) | 12.0 | – |
| Dividend yield | 2.06% | 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 | PLBC | QQQ |
|---|---|---|
| 2022 | +11.7% | -32.6% |
| 2023 | +14.7% | +54.9% |
| 2024 | +17.5% | +25.6% |
| 2025 | -2.7% | +20.8% |
| 2026 | +39.4% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PLBC and QQQ good diversifiers for each other?
Yes. With a correlation of 0.08, PLBC and QQQ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between PLBC and QQQ?
As of 2026-08-27, the correlation of weekly returns between PLBC and QQQ is 0.08 over 3 years, -0.06 over 1 year and 0.11 over 5 years.
Is QQQ a good diversifier for PLBC?
Yes. With a correlation of 0.08, PLBC and QQQ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of 0.08 mean?
A reading of 0.08 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/plbc-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/plbc-vs-qqq/)
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Related comparisons
Hubs: PLBC correlations · QQQ correlations
