IBM Shares Slide Despite Q1 Beat as Guidance Remains Unchanged

IBM shares declined 6% in after-hours trading on Wednesday following the release of its first-quarter financial results. Despite beating analyst expectations across several key metrics, the company's decision to reiterate rather than raise its annual guidance weighed on investor sentiment. The results come amid ongoing market anxiety regarding the impact of generative AI on IBM's legacy mainframe business. While competitors and AI model builders suggest that AI could accelerate the migration away from COBOL-based systems, IBM leadership maintains that AI actually enhances the utility and longevity of its mainframe infrastructure. Financial performance for the quarter was robust, with total revenue growing 9% year-over-year. Software revenue rose 11% to $7.05 billion, and infrastructure revenue jumped 15% to $3.33 billion, both exceeding consensus estimates. Notably, Z mainframe hardware revenue surged by 51%. Net income reached $1.22 billion, or $1.28 per share, an increase from $1.06 billion in the previous quarter. Consulting revenue grew 4% to $5.27 billion, slightly missing the $5.28 billion consensus. IBM also reiterated its 2026 guidance, targeting over 5% revenue growth at constant currency and a $1 billion increase in free cash flow. This cautious outlook follows a volatile year for the stock, which has fallen 15% year-to-date, contrasting with the S&P 500's 4% gain. The company recently expanded its data capabilities through the $11 billion acquisition of Confluent.