
UnitedHealth Group (UNH) is soaring out of the gate Friday after regulatory filings revealed Warren Buffett's holding company, Berkshire Hathaway (BRK.B), initiated a stake in the beaten-down Dow Jones stock in the second quarter.

UnitedHealth Group (UNH) is soaring out of the gate Friday after regulatory filings revealed Warren Buffett's holding company, Berkshire Hathaway (BRK.B), initiated a stake in the beaten-down Dow Jones stock in the second quarter.