IBM's second-quarter results missed expectations, impacted by customer spending shifts, triggering one of the worst crashes in its stock. CEO Arvind Krishna said clients prioritized AI infrastructure, securing supply-constrained hardware in June. He also atrributed the shortfall to execution lapses and a mainframe business setback.

“What played out was worse than our expectations,” CEO Arvind Krishna warned investors.

CEO Arvind Krishna writes letter to investors to explain "performance shortfall"