A CVS-Aetna deal could force Wal-Mart to buy Humana, analyst says By: CNBC.com News December 01, 2017 at 11:27 AM EST Another giant health-care industry acquisition could happen if CVS Health closes its $66 billion deal for health insurer Aetna. Read More >> Related Stocks: Aetna Amazon.com CVS Health Corp Express Scripts Holding Wal-Mart Stores, Inc.