Cigna buying Express Scripts isn't likely to cause a revolution but it makes sense By: CNBC.com News March 08, 2018 at 14:52 PM EST CVS Health shattered expectations when it would acquire Aetna in a $69 billion deal. Read More >> Related Stocks: Alliancebernstein Holding LP AmerisourceBergen Corp Cigna Corp Rite Aid Corp Walgreens Boots Alliance