How does this compare to IBM's Black Monday crash?
IBM's 25.2% single-day drop topped the company's previous worst day, October 19, 1987's Black Monday, when the stock fell 23.7% alongside a market-wide crash. This time the selloff was narrower: the Nasdaq 100 broadly rose the same day, meaning investors were repricing IBM and software specifically, not panicking across the market.
Answered in
IBM Just Had Its Worst Trading Day in 115 YearsIBM stock crashed 25.2% on July 14, 2026, erasing $67 billion after a modest earnings miss — worse than Black Monday 1987.
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