Shares of Advanced Micro Devices (NASDAQ:AMD) traded near $521 midmorning Wednesday, roughly flat on the session after a prior close near $520. The quiet tape masks a loud catalyst: UBS just supersized its price target on AMD stock to $670 from $455, one of the more aggressive upward revisions on the Street this month. The ... Wall Street Just Supersized Its Price Target on AMD. Is the Stock Still Too Cheap?