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Analyst: Amazon a 'must own'

The e-commerce giant has at least 27% upside from current levels, a Pacific Crest Securities analyst wrote in a note upgrading it to outperform from a sector perform rating. The analyst called Amazon (AMZN) a "must-own" stock among large-cap techs, noting its strong and potentially growing market share, as more commerce shifts online. Shares rose 0.6% to 272.12.