Markets GOOGL JUN 23, 2026

Alphabet sheds ~$250B as Shazeer, Jumper defect to OpenAI and Anthropic in 96 hours

GOOGL closed down ~5% Monday, its worst session in over a year, after Gemini co-lead Noam Shazeer and Nobel laureate John Jumper left DeepMind for rivals.

BY HENLEY MARRAST · MARKETS DESK

Alphabet shed roughly $250 billion in market value on Monday, closing down about 5% after a 7.2% intraday slide, the company’s worst session since a similar ~7% drop in May 2025. The proximate trigger was the weekend news that John Jumper, the Vice President at Google DeepMind who shared the 2024 Nobel Prize in chemistry for AlphaFold, had posted on X that he was leaving for Anthropic after “nearly 9 years.” The deeper trigger was that Jumper’s exit landed inside 96 hours of Noam Shazeer’s Wednesday announcement that he was decamping to OpenAI.

Shazeer isn’t a routine departure. He co-authored the 2017 “Attention Is All You Need” paper that introduced the Transformer, and he was Vice President of Engineering and co-lead of Gemini. Google paid $2.7 billion in September 2024 to acquire Character.AI largely to bring him back. Less than two years later, he’s at a competitor.

The market is reading the sequence as a signal, not a coincidence. “the race at the frontier right now appears between Anthropic and OpenAI,” Gil Luria of D.A. Davidson told Bloomberg, a sentence that would’ve sounded contrarian a year ago and now reads as consensus. Demis Hassabis, the DeepMind CEO, offered the valedictory frame: “What we achieved with AlphaFold changed the world.” Past tense, in context, is the part that matters.

The numbers around this make the reaction sharper, not softer. Alphabet posted 82% earnings growth in Q1. There are zero sell ratings on the stock. Early in June the company announced an $80 billion equity offering to help fund projected 2026 AI spending of $180 to $190 billion. Anthropic, meanwhile, is reportedly raising at a ~$1 trillion valuation and has a science event scheduled for June 30, a stage Jumper now arrives in time to occupy.

What Monday priced is the gap between capital and talent. Alphabet has more of the first than anyone. The second is, increasingly, somewhere else. The 2024 Character.AI deal was supposed to close that gap; the Shazeer exit reopens it on the same balance sheet that paid to close it.

Sources

About the author

Henley Marrast

MARKETS DESK

Henley Marrast covers AI-equity flow, accelerator demand, and earnings prints for AI Sheet Report. She leads coverage of the public AI complex from the New York markets desk, with a focus on the daily tape and quarterly results. She has been writing about technology markets for several years.