Shares of UnitedHealth Group Inc. (NYSE: UNH) climbed 2.81% in Monday's pre-market trading session, extending Friday's gain following Michael Burry and Warren Buffett's stake acquisition in the insurance behemoth.

Berkshire’s Big Bet on UnitedHealth Berkshire Hathaway’s (NYSE:BRK-A)(NYSE:BRK-B) release yesterday of its latest 13F filing sent ripples through the market as it revealed a new 5 million share stake in UnitedHealth Group (NYSE:UNH) worth approximately $1.

UnitedHealth Group is a dividend growth stalwart much in line with Berkshire's history of interest in insurance investments. Investors are not being foolhardy in the hope that Berkshire continues buying while UNH trades at 50% off its all-time high of $630.

Year to date, the stock has fallen by nearly 45%, which is by no means normal for the healthcare stock. In fact, this is the worst it has performed since the Great Recession, when it tumbled by more than 54% in 2008.

The sell-off phase in Medicaid provider UnitedHealth (UNH) is over. News that Berkshire Hathaway (BRK) took a position in UNH stock at anywhere from over $600 to as low as around $250 ended the stock decline.

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The company may be under criminal investigation for alleged irregularities in its Medicare business—but it’s been touched by the Warren Buffett effect. Shares in the troubled private health insurer UnitedHealth Group (NYSE: UNH) are currently seeing their best trading day in months.

UnitedHealth Group Incorporated (NYSE:UNH) is one of the Oversold Fundamentally Strong Stocks to Buy Now. On August 7, Mizuho analyst Ann Hynes kept her “Buy” rating, expecting long-term value despite reducing the price objective to $300.

UnitedHealth Group Incorporated (NYSE:UNH) is included among the 10 Best Dividend Stocks to Buy and Hold Forever. UnitedHealth Group Incorporated (NYSE:UNH) is an American multinational healthcare and insurance company.

UnitedHealth Group (NYSE: UNH) is a top health care stock with recent turbulence in earnings guidance, rising costs, and hedge fund activity.