Berkshire Hathaway is deploying its $344B cash pile into undervalued stocks like UnitedHealth, while trimming Apple and BAC. See why BRK.A stock is a buy.

Berkshire Hathaway has now gone six full weeks without closing above its 200-day moving average, the longest stretch the stock has been underwater in nearly

Warren Buffett's Berkshire Hathaway (BRK-B, BRK-A) disclosed a stake of about 5 million shares of UnitedHealth Group (UNH), sending the insurance company's stock higher in extended hours trading. Yahoo Finance Senior Reporter Anjalee Khemlani outlines what investors need to know.

I would like to receive updates and special offers from Dow Jones and affiliates. I can unsubscribe at any time.