Strong Full-Year Revenue and Cash Generation
Revenue grew 6% in 2025 (highest level in many years) and IBM generated $14.7 billion of free cash flow (highest in over a decade), representing 16% year-over-year free cash flow growth and the highest free cash flow margin in reported history.
Margin and Profitability Expansion
Operating pretax margin expanded ~100 basis points for the year, adjusted EBITDA grew 17% YoY, operating gross profit margin expanded 170 bps, adjusted EBITDA margin expanded 230 bps, and operating pretax margin expanded 100 bps — reflecting significant margin expansion across the business.
Software-Led Momentum
Software represented ~45% of revenue, grew 9% for the year (highest annual growth in company history) and accelerated to 11% in Q4; ARR was strong at $23.6 billion (up >$2 billion YoY) with organic growth accelerating to over 7% and three of four software sub-segments delivering double-digit growth.
Data and Automation Outperformance
In Q4, Data grew 19% and Automation grew 14%, driven by GenAI demand, platform traction, and strong bookings (including record bookings for HashiCorp).
Mainframe (IBM Z) Strength
IBM Z had an outstanding year with Z17 driving momentum: infrastructure revenue grew 17% in Q4, hybrid infrastructure up 24%, IBM Z revenue up 61% year-over-year in Q4 and Z achieved its highest annual revenue in ~20 years; Z17 processes ~50% more AI inferencing operations per day than Z16.
GenAI Adoption and Book of Business
Cumulative GenAI book of business exceeded $12.5 billion (software >$2B, consulting >$10.5B) with the largest quarterly increase to date; consulting GenAI bookings grew meaningfully and consulting GenAI backlog penetration is >25%.
Productivity Gains and Capital Allocation
IBM exited 2025 with $4.5 billion of annual run-rate productivity savings (well ahead of earlier $2B goal), expects incremental $1B savings in 2026 to reach $5.5B run-rate, and continues disciplined M&A (HashiCorp accretive to EBITDA earlier than expected) while returning capital (returned $6.3B to shareholders).
Guidance and Forward Outlook
Management guides to sustaining 5%+ revenue growth in 2026, expects software to grow ~10% in 2026, operating pretax margin to expand ~1 point, and free cash flow to increase by about $1 billion (to ~$15.7B).
Innovation & Strategic Tech Progress
Progress in quantum (deployed first 120-qubit Nighthawk system for clients), Project Bob reported ~45% developer productivity gains among 20,000+ IBM users, and new partnerships (AMD, Anthropic, AWS, Microsoft, OpenAI, Oracle, NVIDIA & Red Hat) support hybrid AI strategy.