BMRC vs QQQ: Correlation
How closely do Bank of Marin Bancorp (BMRC) and Invesco QQQ Trust (QQQ) trade together? Their weekly returns over three years give a correlation of 0.19, which is weak.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BMRC and QQQ?
On 3 years of weekly data the BMRC/QQQ correlation comes out at 0.19, weak. The link has loosened recently: the 1-year correlation (-0.06) runs below the 3-year figure (0.19). The 5-year figure is 0.18, and annualized covariance runs at 119.4 %².
QQQ is close to the least connected end of BMRC's tracked universe, ranking #8 of 11. Over the last 12 months QQQ came out ahead by 13.6 percentage points (+12.7% against +26.3%). Note the risk asymmetry: BMRC runs 1.7 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.
BMRC vs QQQ: side by side
| BMRC (Bank of Marin Bancorp) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +12.7% | +26.3% |
| 5-year return | -8.2% | +95.4% |
| Volatility (ann.) | 33.0% | 19.6% |
| Beta vs S&P 500 | 0.75 | 1.28 |
| Max drawdown (3Y) | -35.2% | -22.8% |
| Market cap | $0.4B | – |
| P/E (trailing) | – | – |
| Dividend yield | 3.73% | 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 | BMRC | QQQ |
|---|---|---|
| 2022 | -9.1% | -32.6% |
| 2023 | -29.5% | +54.9% |
| 2024 | +13.9% | +25.6% |
| 2025 | +14.2% | +20.8% |
| 2026 | +5.6% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BMRC and QQQ good diversifiers for each other?
By historical standards, yes. A correlation of 0.19 means the two rarely move for the same reasons.
FAQ
What is the correlation between BMRC and QQQ?
The BMRC/QQQ correlation stands at 0.19 on a 3-year window (1 year: -0.06, 5 years: 0.18), computed from weekly returns as of 2026-08-27.
Is QQQ a good diversifier for BMRC?
By historical standards, yes. A correlation of 0.19 means the two rarely move for the same reasons.
What does a correlation of 0.19 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/bmrc-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/bmrc-vs-qqq/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BMRC correlations · QQQ correlations
