IBM Stock Plummets 25% in Biggest Drop in Over 50 Years After Earnings Warning

IBM's stock experienced its steepest single-day decline in more than half a century on Tuesday, falling 25.2% to close at $217.07. This drop erased approximately $55 to $67 billion from the company's market value, surpassing the losses seen during the 1987 Black Monday crash. The plunge followed an unexpected warning from IBM regarding its preliminary second-quarter 2026 results, which fell short of Wall Street expectations and raised concerns about whether large enterprise customers are delaying or reducing spending on software and services.

The stock, which peaked at $332.46 in June, has now dropped over 27% year-to-date, reaching levels last seen in mid-May. Early trading saw a further 23% drop to a low point, prompting HSBC to downgrade IBM shares to "Reduce" and cut its price target to $191. IBM reported second-quarter revenues of $17.2 billion, a 1% increase year-over-year but below analyst estimates of $17.86 to $17.9 billion. Adjusted earnings per share were $2.93, missing forecasts of $3.01 to $3.02, while GAAP diluted EPS declined 2% to $2.27. Full results are expected on July 22.

CEO Arvind Krishna attributed the earnings miss to a sudden shift in customer priorities at the end of June, with clients opting to purchase servers, storage, and memory hardware ahead of anticipated price hikes, which delayed large software and consulting deals. Krishna acknowledged internal execution issues, stating that IBM teams "failed" to adapt quickly enough and that the scale of the spending shift was more severe than anticipated.

The warning sent shockwaves through the software and IT services sector, with shares of Microsoft and ServiceNow also falling, and the iShares Expanded Tech-Software Sector ETF dropping about 4%. Industry observers described this as a "SaaS reckoning," indicating a revaluation of enterprise software rather than outright deal cancellations. Despite the setback, IBM emphasized its long-term investment strategy remains strong, highlighting its $5 billion "Lightwell" initiative in partnership with Red Hat and plans to invest over $10 billion in quantum computing over the next five years. IBM also announced collaboration with the U.S. Department of Commerce to establish the world's first dedicated quantum wafer fabrication facility.