IBM just had the kind of day that makes corporate PR teams update their resumes. The 113-year-old tech giant warned on July 14 that its second-quarter revenue would land at roughly $17.2 billion, a full $660 million below what Wall Street was expecting. The stock responded by cratering approximately 25%, its worst single-day decline in at least 58 years.
In English: enterprise customers are pulling money away from IBM’s bread-and-butter mainframe business and redirecting it toward AI hardware, servers, and data-center infrastructure. IBM isn’t where that money is landing.
The numbers tell a brutal story
IBM projected adjusted earnings per share of $2.93 for Q2 2026, missing the consensus estimate of $3.01. Revenue expectations of $17.86 billion from analysts now look like a distant memory.
The damage is concentrated in IBM’s infrastructure segment, where revenue is projected to decline by 7%. The culprit is the Z mainframe stack, the company’s legacy cash cow that has anchored enterprise computing for decades. Software revenue, by contrast, was still expected to grow by about 5%, but that bright spot wasn’t nearly enough to offset the mainframe bleeding.
