IBM just lost nearly $68 billion in market value in one trading day, and the damage wasn't caused by a scandal or a cyberattack. Its customers moved their money toward servers, storage, and memory before IBM could close the deals it was counting on.
IBM shares fell roughly a quarter on Tuesday after the company released preliminary second-quarter results ahead of schedule. MarketWatch said the move was on pace to be IBM's worst single-day drop ever, worse than its Black Monday fall in 1987, and the selloff erased nearly $68 billion in market value. For a company that has survived the mainframe era, the PC era, the cloud shift, and several reinventions of itself, that's a harsh way to find out where enterprise budgets are moving.
The numbers explain the panic. IBM said it expects revenue of about $17.2 billion, below the roughly $17.86 billion Wall Street expected, and adjusted earnings of $2.93 a share, short of the $3.01 to $3.02 analysts had modeled, according to AP and MarketWatch. Infrastructure revenue fell 7%. Software revenue grew 5%, but that was not enough. Consulting was essentially flat. The weak spot was not one clean line item, but the old IBM problem in a new wrapper: big enterprise deals did not close when management said they would.
Arvind Krishna did not dress it up. In a letter to investors cited by Business Insider, IBM's chief executive wrote, "This quarter we faltered." He also said the company did not adapt quickly enough as large deals failed to close on expected timelines. That is about as plain as a Fortune 500 CEO gets before the full earnings call.
Where the money went #
Here is the part that should worry every legacy enterprise vendor, not just IBM. Krishna said customers pushed spending toward servers, storage, and memory in the final weeks of June because they expected prices to rise. AP reported that IBM linked the shift to clients front- hardware purchases as supply tightened. You can see the budget moving in real time.
That is the AI buildout reaching into ordinary enterprise purchasing. Nvidia's data center sales have already shown where the easy money is flowing, but IBM's warning shows the other side of the same trade. When clients are scared about memory prices and hardware availability, a mainframe upgrade, a transaction-processing contract, or a software renewal can suddenly wait.
The z17 mainframe was supposed to help IBM this year. Instead, MarketWatch reported that the underperformance of the z17 program and related transaction software was a major part of the shortfall. That stings because mainframes are not a side hobby at IBM. They sit deep inside banks, insurers, governments, and other customers that still run critical workloads on IBM Z systems. When that business misses, investors notice.
There was another distraction. Reports from The Times and other outlets said some customers d after Anthropic previewed Mythos, an AI system described as unusually strong at finding software vulnerabilities. IBM had already announced Project Lightwell, a $5 billion open-source security effort with Red Hat, in response to that kind of threat. Frankly, the timing could hardly have been worse. IBM was trying to sell clients on its security answer while those same clients were still trying to understand the question.
The July 22 call matters #
The stock also pulled the Dow lower. MarketWatch estimated IBM accounted for about 330 points of the index's early decline, which is what happens when an old-line Dow component drops more than 20% before breakfast. Goldman Sachs' stronger results helped cushion the broader index, but they did nothing for IBM shareholders staring at the company's largest market-cap loss on record.
Krishna has not abandoned IBM's AI ambitions. The company still has watsonx, Red Hat, consulting relationships, and a long record of selling complicated technology to cautious enterprises. But none of that stopped this quarter's warning. If you sell into big companies, you already know the uncomfortable truth: a customer can believe your pitch and still spend the money somewhere else first.
IBM will hold its full second-quarter earnings call on July 22. That is when investors get more detail on whether this was a messy quarter or a problem that runs deeper. The difference matters. A delayed deal can come back. A budget that has permanently moved toward AI infrastructure is a much bigger problem.
For now, the cleanest fact is also the most brutal one. IBM warned early because the shortfall was too large to hide until earnings day. Also read: What Is an AI PC and Do You Actually Need One in 2026 • LeapXpert raises $180 million to govern the texts Wall Street already sends • StepFun Unveils the First Agentic AI Phone Ahead of Apple and OpenAI