The legal scrutiny centers on a stark contrast between corporate guidance and actual results. On April 22, 2026, IBM management projected constant currency revenue growth of over 5% for the year, citing a record-breaking start for the new z17 mainframe. Yet, by July 14, CEO Arvind Krishna reported that total revenue growth had stalled at just 1%, with Infrastructure revenue dropping 7%.

Krishna attributed the failure to a shortfall in Z-series transaction processing and a sudden reprioritization of capital expenditures by clients. Hagens Berman partner Reed Kathrein noted that the abrupt nature of this reversal raises questions regarding when the company first realized that major deals were unlikely to close within the quarter. The firm is currently soliciting information from investors and potential whistleblowers to determine if the company possessed earlier knowledge of these failures while continuing to issue optimistic public guidance.