Express Scripts Outlook Improves Amid Tax Reform, CVS-Aetna Deal By: Benzinga via Benzinga December 06, 2017 at 12:51 PM EST Recent developments in the healthcare space, including the proposed merger between CVS Health Corp (NYSE: CVS) and Aetna Inc (NYSE: ... Read More >> Related Stocks: Aetna Amazon.com CVS Health Corp Express Scripts Holding Walgreens Boots Alliance