BRK.B vs QQQ: Correlation
How closely do Berkshire Hathaway (BRK.B) and Invesco QQQ Trust (QQQ) trade together? Their weekly returns over three years give a correlation of 0.20, which is weak.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BRK.B and QQQ?
On 3 years of weekly data the BRK.B/QQQ correlation comes out at 0.20, weak. The link has loosened recently: the 1-year correlation (-0.03) runs below the 3-year figure (0.20). The 5-year figure is 0.39, and annualized covariance runs at 62.4 %².
Within BRK.B's tracked universe of 31 assets, QQQ comes in at #21 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months QQQ outperformed by 24.7 percentage points (+1.6% for BRK.B against +26.3% for QQQ). The relationship is regime-dependent: the rolling one-year correlation swung between -0.11 and 0.52 over the past three years, so this pair behaves very differently depending on the market environment.
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.
BRK.B vs QQQ: side by side
| BRK.B (Berkshire Hathaway) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +1.6% | +26.3% |
| 5-year return | +76.3% | +95.4% |
| Volatility (ann.) | 15.9% | 19.6% |
| Beta vs S&P 500 | 0.43 | 1.28 |
| Max drawdown (3Y) | -14.9% | -22.8% |
| Market cap | $1,078.3B | – |
| P/E (trailing) | 12.7 | – |
| Dividend yield | 0.00% | 0.44% |
| Expense ratio | – | 0.18% |
| Assets under management | – | $452.8B |
| Sector / category | Financials | 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 | BRK.B | QQQ |
|---|---|---|
| 2022 | +3.3% | -32.6% |
| 2023 | +15.5% | +54.9% |
| 2024 | +27.1% | +25.6% |
| 2025 | +10.9% | +20.8% |
| 2026 | +0.2% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BRK.B and QQQ good diversifiers for each other?
A fair diversifier. At 0.20, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between BRK.B and QQQ?
As of 2026-08-27, the correlation of weekly returns between BRK.B and QQQ is 0.20 over 3 years, -0.03 over 1 year and 0.39 over 5 years.
Is QQQ a good diversifier for BRK.B?
A fair diversifier. At 0.20, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.20 mean?
On the −1 to +1 scale, 0.20 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/brk-b-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/brk-b-vs-qqq/)
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Related comparisons
Hubs: BRK.B correlations · QQQ correlations
