BRK.B vs YYAI: Correlation
How closely do Berkshire Hathaway (BRK.B) and AiRWA Inc. (YYAI) trade together? Their weekly returns over three years give a correlation of -0.18, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BRK.B and YYAI?
Across a 3-year window, the weekly returns of BRK.B and YYAI correlate at -0.18, negative, meaning they tend to move in opposite directions. The past 12 months show a weaker link (-0.28) than the 3-year average (-0.18). Stretching to 5 years gives -0.11, with an annualized covariance of -2413.4 %².
Among the 31 assets we track against BRK.B, YYAI ranks #22 by 3-year correlation. Correlation aside, the last 12 months split them widely, with BRK.B ahead by 101.6 points (+1.6% versus -100.0%). Risk is not evenly split, since YYAI carries 53.4 times the volatility of the other side.
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 YYAI: side by side
| BRK.B (Berkshire Hathaway) | YYAI (AiRWA Inc.) | |
|---|---|---|
| 1-year return | +1.6% | -100.0% |
| 5-year return | +76.3% | -100.0% |
| Volatility (ann.) | 15.9% | 848.8% |
| Beta vs S&P 500 | 0.43 | -0.53 |
| Max drawdown (3Y) | -14.9% | -100.0% |
| Market cap | $1,078.3B | – |
| P/E (trailing) | 12.7 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | Financials | US Listed |
Year-by-year returns
| Year | BRK.B | YYAI |
|---|---|---|
| 2022 | +3.3% | -98.6% |
| 2023 | +15.5% | -97.8% |
| 2024 | +27.1% | -69.5% |
| 2025 | +10.9% | -98.7% |
| 2026 | +0.2% | -96.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BRK.B and YYAI good diversifiers for each other?
Yes: at -0.18, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between BRK.B and YYAI?
Using weekly returns as of 2026-08-27: -0.18 over 3 years, with -0.28 over the last year and -0.11 over 5 years.
Is YYAI a good diversifier for BRK.B?
Yes: at -0.18, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.18 mean?
A reading of -0.18 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
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[](https://www.pairbook.io/pair/brk-b-vs-yyai/)
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Related comparisons
Hubs: BRK.B correlations · YYAI correlations
