Shares of UnitedHealth Group are surging before the market open Friday as Warren Buffett’s Berkshire Hathaway disclosed that it recently purchased shares of the beleaguered insurer.

UnitedHealth shares jumped 12 per cent on Friday after Warren Buffett’s Berkshire Hathaway snapped up a stake in the troubled US healthcare group. The new investment was disclosed in a filing late on Thursday detailing changes to Berkshire’s $268bn stock portfolio during the second quarter.

Shares of UnitedHealth Group surged on Friday after a fresh investment from billionaire Warren Buffett's Berkshire Hathaway boosted investor confidence in the troubled health conglomerate. Alex Cohen has more.

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,

The blue-chip Dow was on track to open at a record high on Friday, underpinned by expectations of an interest rate cut in September and gains in UnitedHealth's shares after Berkshire Hathaway raised its stake in the health insurer.