Only one of the four new investments was big enough to ensure that legendary investor Warren Buffett may have handled them.

Rising costs in the broader healthcare sector and about a 40% slump in UnitedHealth's shares this year have left the Dow lagging its Wall Street peers on the road to record highs. The price-weighted ...

PM Eastern Time, the S&P 500 slipped 0.2%, the Dow Jones Industrial Average rose 0.2%, and the Nasdaq Composite was down 0.3% ...