[IBM Q2 Revenue Grows Only 1%, Lowers Full-Year Revenue Forecast, Mainframe Sales Plunge Dragging Down Performance] BlockBeats News, July 23, IBM released its Q2 financial report, showing that the company's second-quarter revenue grew only 1% and it has lowered its full-year revenue forecast. A sharp decline in mainframe sales has dragged down its performance. IBM's Q2 revenue was $17.2 billion, up approximately 1% year-over-year, with adjusted earnings per share of $2.93, both falling short of expectations. The full-year revenue growth forecast has been revised down from "over 5%" to "4% to 5%." Revenue from Z-series mainframes plunged 42% year-over-year, causing infrastructure business revenue to decline by 7%. Software business remained relatively stable, with revenue growing 5% year-over-year. Since the company issued an earnings warning a week ago, IBM's stock price rose about 3% in after-hours trading.