Goldman Sachs initiated coverage of IBM (NYSE:IBM) with a "buy" rating, with the analyst in coverage noting that the company's artificial intelligence (AI) services will help it maintain its revenue and free cash-flow growth in the long run. IBM is up 2.9% to trade at $177.52 at last check. Should these gains hold, shares could mark their first close above the$176 region and the 60-day moving average since April. A floor at the $162 level has been containing losses for the last several weeks, and while the ...