IBM Lost $70 Billion in a Day: How One AI Reality Check Shook Wall Street
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July 15, 2026
Introduction On July 14, 2026, IBM had one of the worst trading days in its 115-year history. Shares plunged as much as 26% intraday, wiping out roughly $70 billion in market value in a matter of hours. It was the company’s steepest single-day…