Berkshire Hathaway's $1.6 billion stake in UnitedHealth Group is helping to lift the Dow Jones Industrial Average to a new ...

The blue-chip Dow Jones ended higher after hitting an intraday record high on Friday, as UnitedHealth's shares jumped after ...

Shares of Tonix Pharmaceuticals rose after the Food and Drug Administration approved its fibromyalgia treatment Tonmya. The stock gained 16% to $59.46 in after-hours trading on Friday. Shares are up ...

The benchmark S&P 500 and the Nasdaq dropped, dragged down mainly by technology, financials, industrials and utilities stocks ...