IBM’s preliminary second-quarter results delivered a gut punch to investors, sending the stock down 19% on Tuesday morning as a massive, industry-wide shift in hardware capital expenditure (capex) cannibalized the company’s high-margin software business.

IBM reported revenue of $17.2 billion for the second quarter, falling short of the $17.86 billion analyst consensus. While total revenue ticked up 1% year-over-year (YoY)—buoyed by a 5% gain in Software and flat Consulting revenue—its Infrastructure division dragged on performance, plunging 7%.

The primary culprit behind the revenue miss was an unexpected, aggressive reprioritization of enterprise IT budgets toward hardware infrastructure. IBM noted that in the final weeks of June, clients abruptly redirected their quarterly capex away from traditional software and mainframe cycles to pile cash into servers, storage, and memory.

This panic-buying of hardware was driven by severe structural supply constraints and impending price hikes across the memory market. With artificial intelligence applications consuming the lion’s share of global high-bandwidth memory (HBM) and advanced DRAM production, enterprise buyers rushed to secure physical supply before projected cost increases took effect.

Because IT budgets are largely fixed, this massive hardware pre-buying effectively starved other segments. IBM’s high-margin Transaction Processing software stack and its core Z mainframe performance bore the brunt of this budget diversion, as clients deferred software expansions to fund their immediate memory and server needs. Furthermore, widespread cybersecurity distractions throughout the quarter added to client procurement delays.

The shift toward lower-margin hardware or delayed software deployments left a clear mark on IBM’s profitability:

• Operating non-GAAP EPS: Reached $2.93 (up 5% YoY), but missed the $3.02 Wall Street consensus.
• GAAP Diluted EPS: Came in at $2.27, down 2% YoY.

Margins: GAAP gross profit margin fell 100 basis pins to 57.7%, while operating non-GAAP gross margin contracted by 70 basis points to 59.4%.

Despite the quarterly turbulence, IBM’s cash generation remained a bright spot. For the first half of the year, the company generated $7.8 billion in net cash from operating activities and a healthy $4.8 billion in free cash flow.

Amid the capex headwinds, portions of IBM’s portfolio showed resilient underlying demand. Red Hat revenue growth accelerated to 11%, and the Distributed Infrastructure segment posted its best performance in reported history, surging 37% YoY. Additionally, longer-term adoption remains intact, with IBM’s z17 mainframe program hovering at nearly 130% on a program-to-program basis compared to its predecessor, the z16.

Investors will be looking for clarity on whether this memory-driven capex distortion is a temporary blip or a multi-quarter headwind. IBM plans to address these dynamics, update its full-year expectations, and detail its performance initiatives during its regularly scheduled conference call on July 22, 2026.