The health insurer has been facing multiple headwinds this year and a turnaround may not happen quick for the stock.

Buffett’s Mastery of Market Missteps Warren Buffett has built a fortune by targeting companies with stellar fundamentals that the market has unjustly overlooked. His approach thrives on identifying businesses with enduring competitive edges,

UnitedHealth Group, the worst-performing stock in the Dow Jones Industrial Average so far this year, got a major boost last week from billionaire investor Warren Buffett. That doesn’t mean everyone else should buy.