Steven Cohen's 6 Best Performing Stocks That Still Have Big Upside By: Benzinga via Benzinga November 15, 2017 at 15:26 PM EST Cohen's best-performing stocks include Biogen Inc (NASDAQ: BIIB), Magna International Inc. (USA) (NYSE: MGA) and Gap Inc (NYSE: ... Read More >> Related Stocks: American Eagle Outfitters Biogen Idec Boeing Co Gap Groupon Cl A Grubhub Ord Shs Magna International Spirit Aerosystems Holdings Time Warner