Bloomberg journalists discuss today's biggest winners and losers in the stock market. Listen for analysis on the companies making news on Wall Street.

UnitedHealth shares surged Friday after Warren Buffett’s Berkshire Hathaway revealed a stake in the embattled healthcare giant. Monitor these major chart levels.

UnitedHealth just won't quit. Shares of the healthcare giant were up 13.5% in recent trade, building on their earlier gains. That leaves it on track for its biggest one-day jump since Oct. 13, 2008, when the stock rose 34.

The advance came after Buffett's conglomerate Berkshire Hathaway revealed a stake of 5 million shares, worth about $1.6 billion.

The blue-chip Dow Jones ended higher after hitting an intraday record high on Friday, as UnitedHealth's shares jumped after Berkshire Hathaway raised its stake, but other Wall Street indexes slipped as mixed data clouded the Federal Reserve's next monetary policy move.

UnitedHealth Group Incorporated (NYSE:UNH) is one of the stocks Jim Cramer shed light on. Cramer showed a slight bit of optimism toward the company as he said: “I think UnitedHealth’s going to work

UnitedHealth's yield is typically less than 2%, but nowadays, it's well over 3%. The stock experienced a steep decline in value this year as its financials underwhelmed investors. Rising costs, utilization rates,

B stake in UnitedHealth Group Incorporated signals a market shift. Click for why I have now upgraded UNH stock to Buy.

The market is closed for the week. Let's just call it one strange week. President Donald Trump just landed in Alaska, where he's expected to meet with Russian President Vladimir Putin. Long-foreshadowed,