Genius John Jumper Worth $250 Billion? Alphabet's Stock Plunge After His Departure Makes It Seem So.

Alphabet’s stock pulled back after the departure of Google DeepMind vice president John Jumper for Anthropic, contributing to a selloff of more than 6% over several days, which the article equates to about $250 billion in lost market value. The stock had reached a new all-time high at the start of June and had traded near that level for weeks. The move comes as another high-profile AI executive, Noam Shazeer, co-lead of the Gemini model, left for OpenAI the week before. The report frames the concern for investors around whether Alphabet can keep pace in the AI race, given that its AI summaries appear across Google Search and that Google Cloud relies on strong AI capabilities to attract clients. It notes that compensation is unlikely to be the driver and suggests internal leadership and strategy shifts could be factors. The article also says the broader AI sector has been selling off and points out that Alphabet remains at a high valuation level on operating cash flow metrics versus the past decade. It argues stabilization could follow if market sentiment improves and highlights that rivals may take time to ramp up after hiring the executives.