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.

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

UnitedHealth Group (UNH) shares soared 12% on August 15, 2025, after Warren Buffetts Berkshire Hathaway revealed a $1.6 billion stake of over 5 million shares. The surge marks the stocks biggest jump in five years,

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