UnitedHealth (NYSE:UNH) stock grabbed headlines last week, as Warren Buffett – the legendary Oracle of Omaha – disclosed a $1.6 billion stake, a

Year to date, the stock has fallen by nearly 45%, which is by no means normal for the healthcare stock. In fact, this is the worst it has performed since the Great Recession, when it tumbled by more than 54% in 2008.

Bloomberg journalists discuss today's biggest winners and losers in the stock market. Listen for analysis on the companies making news on Wall Street.

Investing.com -- Gilead Sciences (NASDAQ:GILD) stock fell 2.7% in pre-market trading Thursday after ... Mizuho analysts suggested that upcoming coverage decisions from UnitedHealth (NYSE:UNH) and Cigna (NYSE:CI) could now be more significant catalysts ...

UnitedHealth Group ($UNH) stock rallied about 12% on Friday, as Warren Buffett’s Berkshire Hathaway (BRK.A) (BRK.B) and other hedge funds,

The sell-off phase in Medicaid provider UnitedHealth (UNH) is over. News that Berkshire Hathaway (BRK) took a position in UNH stock at anywhere from over $600 to as low as around $250 ended the stock decline.

UnitedHealth Group (NYSE: UNH) is a top health care stock with recent turbulence in earnings guidance, rising costs, and hedge fund activity.

CVS Health (CVS) and UnitedHealth Group (UNH), two of the largest players in the healthcare sector, recently reported their Q2 earnings, showing contrasting performances. While CVS delivered strong revenue growth and raised its full-year guidance,