Don't count insurers out yet after Amazon-Berkshire-JP Morgan move By: CNBC.com News January 30, 2018 at 17:44 PM EST What's different this time? The firms are coming together to form a not-for-profit company to try to leverage the companies' market power. Read More >> Related Stocks: Amazon.com Anthem Inc Berkshire Hathaway Cigna Corp JPMorgan Chase & Co