Remember when IBM had years of stagnation and declining investor returns?Now, a successful turnaround at International Business Machines (NYSE:IBM) is finally taking hold.For the first time in over a decade, IBM stock is rising and outperforming many of its peers. In the last 12 months, it has risen 34%, including a 19% gain so far this year. It’s a welcome change for a stock that many analysts had written off. It was seen as a value trap that experts urged investors to avoid. Its stock is returning to the ...