IBM stock craters 25% on Q2 revenue miss; customer capex shifted to AI hardware

IBM shares plummeted 25% on Tuesday after the hardware, software and consulting provider released preliminary second-quarter results that fell short of expectations, logging its worst day on record, sinking further than its previous worst day of Oct. 19, 1987, when shares fell 23.7%. CEO Arvind Krishna attributed the miss to clients shifting quarterly capex spend toward servers, storage, and memory purchases to secure supply-constrained infrastructure ahead of expected price increases, saying he did not anticipate the magnitude of the capex reprioritization and that numerous large deals failed to close on the timelines expected.

IBM said software revenue increased 5% during the quarter, consulting revenue was broadly flat rising 1%, while infrastructure revenue declined 7%. The shortfall wasn't due to shrinking AI budgets, but a reallocation: infrastructure revenue dropped 7% as clients prioritized acquiring compute, storage, and memory amid supply constraints and expected price increases, delaying software deals. The decline in IBM's stock triggered a broader selloff in the software sector, affecting companies like Salesforce, Adobe, and Intuit.

For architects and infrastructure teams, IBM's miss is a market-wide signal: enterprises are front-loading hardware capex in Q2-Q3 ahead of price increases and supply constraints, pushing software and consulting deals into later quarters. This is not demand destruction—it's timing and budget reallocation. IBM's software business, the part of the portfolio most directly tied to AI-enabled products, still grew, and the company is keeping investment in strategic AI bets like Lightwell, a $5 billion open-source security initiative that reached general availability on July 8. Watch the July 22 earnings call for full-year guidance and clarity on whether this capex shift is a one-time lumpiness or a sustained re-weighting of enterprise tech spending.