🐢 **Dataroma: Berkshire Deepens Alphabet Bet as AI Trade Broadens**
Berkshire Hathaway has added to its Alphabet stake for a third straight period, including roughly $10B in fresh buying in Q2 2026, making it one of the conglomerate's largest holdings; the move tracks BlackRock and PIMCO's constructive stance on AI-driven earnings (BlackRock cites 40%+ YoY growth in AI-exposed names), even as Schroders warns that market leadership remains concentrated in a small group of AI and tech names.

**Why it matters:** A top value-oriented guru sustaining large AI-adjacent buying alongside institutional bullishness on AI earnings, but against warnings of concentration risk, may point to continued sector rotation toward mega-cap tech even as diversification concerns build.
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