Alphabet Heads For a $500 Billion Drop In Market Value

Yesterday, Google reported its Q3 results that showed searches made through its AI Mode generate less revenue than traditional search, even as overall search revenue grew 12% year over year to $63.25 billion. The news sent Alphabet shares plunging, with Bespoke Investment Group reporting that the stock is on track for its steepest post-earnings decline since the company went public in 2004. Yahoo Finance reports: At its low, Alphabet had lost $524 billion in stock market value, the second-biggest one-day loss ever for a US-listed company. Only Nvidia has lost more, about $593 billion on Jan. 27, 2025, the day China's DeepSeek rattled AI investors. Alphabet would need to close at about $274.75, down roughly 15%, to take Nvidia's record, by Yahoo Finance calculations. It has already blown past the $400 billion SpaceX lost on June 22, the previous No. 2.

In dollars, it's Alphabet's worst day by far. Its previous worst was about $275 billion on July 23. It's also on track for the stock's steepest drop after an earnings report since the company went public, according to Bespoke Investment Group. The previous low was a slide of nearly 10% in July 2008.