IBM's stock jumped 8% in extended trading after the company reported a robust fourth quarter earnings report, with revenue rising to $19.69 billion and exceeding expectations of $19.21 billion. A 12% overall revenue growth was driven by a significant 14% increase in the software division, while the mainframe business showcased its best performance in over 20 years. Following this encouraging news, Bank of America raised its price target for IBM, reflecting heightened investor confidence in the company's trajectory.