PairBook
HomeBCAL › BCAL vs QQQ

BCAL vs QQQ: Correlation

California BanCorp (BCAL) and Invesco QQQ Trust (QQQ) show a moderate relationship: their 3-year correlation of weekly returns is 0.34.

Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology

Correlation (3Y)
0.34
moderate
Correlation (1Y)
0.13
last 12 months
Correlation (5Y)
0.22
long-run
Ann. covariance
174.5
%² · weekly, annualized

How correlated are BCAL and QQQ?

On 3 years of weekly data the BCAL/QQQ correlation comes out at 0.34, moderate. The past 12 months show a weaker link (0.13) than the 3-year average (0.34). The 5-year figure is 0.22, and annualized covariance runs at 174.5 %².

Out of 13 assets tracked against BCAL, QQQ lands near the bottom at #10. Their 12-month results are close: +28.0% for BCAL against +26.3% for QQQ.

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.

BCAL vs QQQ: side by side

BCAL (California BanCorp)QQQ (Invesco QQQ Trust)
1-year return+28.0%+26.3%
5-year return+52.2%+95.4%
Volatility (ann.)26.5%19.6%
Beta vs S&P 5000.821.28
Max drawdown (3Y)-32.3%-22.8%
Market cap$0.7B
P/E (trailing)11.6
Dividend yield1.40%0.44%
Expense ratio0.18%
Assets under management$452.8B
Sector / categoryUS ListedETF · US Growth & Tech
Higher yield: BCAL 1.40% vs 0.44%Smaller drawdown: QQQ -22.8% vs -32.3%Higher 5y return: QQQ +95.4% vs +52.2%

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.

-6%0%+29%2025-09-052026-08-27
Twelve months of weekly closes, each series rebased to 100. BCAL · QQQ

Year-by-year returns

YearBCALQQQ
2022+12.3%-32.6%
2023+3.1%+54.9%
2024-4.7%+25.6%
2025+13.5%+20.8%
2026+15.5%+17.7%

Calendar-year price returns; the current year is year-to-date as of the data date above.

Are BCAL and QQQ good diversifiers for each other?

A fair diversifier. At 0.34, enough of each asset's movement is its own that the pair has smoothed outcomes historically.

FAQ

What is the correlation between BCAL and QQQ?

The BCAL/QQQ correlation stands at 0.34 on a 3-year window (1 year: 0.13, 5 years: 0.22), computed from weekly returns as of 2026-08-27.

Is QQQ a good diversifier for BCAL?

A fair diversifier. At 0.34, enough of each asset's movement is its own that the pair has smoothed outcomes historically.

What does a correlation of 0.34 mean?

A reading of 0.34 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

JSON API · no key required
$ curl https://www.pairbook.io/api/v1/pairs/bcal-vs-qqq.json

BCAL vs QQQ: 3-year weekly correlation 0.34BCAL vs QQQ0.34

Embed this badge (it refreshes with the data), with attribution:

[![BCAL vs QQQ correlation](https://www.pairbook.io/api/v1/badge/bcal-vs-qqq.svg)](https://www.pairbook.io/pair/bcal-vs-qqq/)

No key needed, free to use. Full endpoint list in the API documentation.

Related comparisons

Hubs: BCAL correlations · QQQ correlations