Shares of UnitedHealth Group are surging before the market open Friday as Warren Buffett’s Berkshire Hathaway disclosed that ...

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Yet as UnitedHealth's stock declined, Buffett's Berkshire Hathaway Inc. (BRK.B) (BRK.A) stepped in and bought 5.04 million shares, a stake valued at $1.57 billion as of June 30's close.

Although President Trump's tariff and trade policy is headline news, another factor is of far greater importance to the stock market.

Warren Buffett’s Berkshire Hathaway (BRK.B) sold shares in Apple (AAPL) last quarter, [while adding UnitedHealth](https: ...

Presently, he has 30% of his portfolio invested in two brilliant artificial intelligence (AI) stocks: 9% is allocated to ...