PairBook
HomeBLK › BLK vs QQQ

BLK vs QQQ: Correlation

How closely do BlackRock (BLK) and Invesco QQQ Trust (QQQ) trade together? Their weekly returns over three years give a correlation of 0.60, which is strong.

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

Correlation (3Y)
0.60
strong
Correlation (1Y)
0.49
last 12 months
Correlation (5Y)
0.69
long-run
Ann. covariance
290.5
%² · weekly, annualized

How correlated are BLK and QQQ?

On 3 years of weekly data the BLK/QQQ correlation comes out at 0.60, strong. The past 12 months show a weaker link (0.49) than the 3-year average (0.60). The 5-year figure is 0.69, and annualized covariance runs at 290.5 %².

Among the 42 assets we track against BLK, QQQ ranks #23 by 3-year correlation. Correlation aside, the last 12 months split them widely, with QQQ ahead by 21.0 points (+5.3% versus +26.3%). On a rolling one-year basis the correlation drifted between 0.37 and 0.74, a moderate band.

+1.0+0.50-0.5-1.020232026-08-27
One-year correlation, rolled weekly across the last three years.
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.

BLK vs QQQ: side by side

BLK (BlackRock)QQQ (Invesco QQQ Trust)
1-year return+5.3%+26.3%
5-year return+38.9%+95.4%
Volatility (ann.)24.7%19.6%
Beta vs S&P 5001.191.28
Max drawdown (3Y)-23.7%-22.8%
Market cap$189.7B
P/E (trailing)28.1
Dividend yield1.86%0.44%
Expense ratio0.18%
Assets under management$452.8B
Sector / categoryFinancialsETF · US Growth & Tech
Higher yield: BLK 1.86% vs 0.44%Smaller drawdown: QQQ -22.8% vs -23.7%Higher 5y return: QQQ +95.4% vs +38.9%

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.

-15%0%+29%2025-09-052026-08-27
Twelve months of weekly closes, each series rebased to 100. BLK · QQQ

Year-by-year returns

YearBLKQQQ
2022-20.4%-32.6%
2023+17.9%+54.9%
2024+29.3%+25.6%
2025+6.6%+20.8%
2026+10.3%+17.7%

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

Are BLK and QQQ good diversifiers for each other?

Somewhat, no more. With 0.60 correlation, most large moves hit both names, and the diversification benefit stays modest.

FAQ

What is the correlation between BLK and QQQ?

The BLK/QQQ correlation stands at 0.60 on a 3-year window (1 year: 0.49, 5 years: 0.69), computed from weekly returns as of 2026-08-27.

Is QQQ a good diversifier for BLK?

Somewhat, no more. With 0.60 correlation, most large moves hit both names, and the diversification benefit stays modest.

What does a correlation of 0.60 mean?

A reading of 0.60 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/blk-vs-qqq.json

BLK vs QQQ: 3-year weekly correlation 0.60BLK vs QQQ0.60

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

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

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

Related comparisons

Hubs: BLK correlations · QQQ correlations