• Share prices of tech major IBM (NYSE:IBM) rose by 3.35% after the company posted excellent earnings figure on Tuesday night • Adtran Inc (NASDAQ:ADTN) increased 6.56% to end at $42.25 after the company posted an increased sales figures for the fourth quarter that came in above expectations • Shares of Northern Trust Corp (NASDAQ:NTRS) had fallen by [...] (ABT) Company News for January 20, 2011 – Corporate Summary