Berkshire's unusually modern bet on Alphabet forces a fresh look at Warren Buffetts playbook

Berkshire Hathaways Alphabet stake has surged $415 million in just a week, reaching nearly $5.35 billion as shares climbed 8.4%. The move has reignited debate over whether the traditionally cautious firm is warming to high-risk, AI-driven growth. Alphabets rally was boosted by Berkshires disclosure and positive reception of Googles new Gemini 3 AI model, even as other tech stocks lagged.