The company beat analysts' Q4 2025 expectations, but it's the company's 2026 expectations that also has investors excited. After inching 0.10% higher during today's regular trading session, International Business Machines (IBM +0.10%) stock is jumping sharply higher in after-hours trading this afternoon. As of 5:27 p.m., shares of IBM are up 8.1% from their closing price of $294.16 during today's regular market session. Analysts had anticipated that IBM would post Q4 2025 adjusted EPS of $4.29. Plus, management forecasts strong free cash flow growth in 2026 -- an increase of about $1 billion over the $14.7 billion in free cash flow that it generated in 2025.