Amazon, Berkshire Hathaway and JPMorgan health initiative send industry shares plummeting By: MarketWatch January 30, 2018 at 08:12 AM EST The three influential companies plan a new initiative aimed at improving employees’ health care. Read More >> Related Stocks: Aetna Amazon.com Anthem Inc Berkshire Hathaway Berkshire Hathaway CVS Health Corp Cardinal Health Express Scripts Holding HEALTHCARE Humana JPMorgan Chase & Co S&P Biotech SPDR UnitedHealth Group Walgreens Boots Alliance