Buffett & Co. picked up UnitedHealth stock on the cheap, with the embattled blue chip one of the newest holdings in the Berkshire Hathaway equity portfolio.

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.

Warren Buffett’s Berkshire Hathaway (BRK.B) updated its portfolio for the second quarter of 2025, surprising investors with a new stake in UnitedHealth Group (UNH) while reducing its large holding in Apple (AAPL).

Berkshire Hathaway just disclosed that it dumped $1.6 billion into a sinking ship, and Wall Street instantly paid attention.

Warren Buffett has requested confidentiality in a new Berkshire Hathaway position. Will investors find out the stock Thursday?

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

Here are three of the stories Wall Street is watching on Friday, Aug. 15. Retail sales in July rose 0.5% from the month prior, slightly below the 0.6% economists polled by Bloomberg were expecting. US President Donald Trump and Russian President Vladimir Putin are meeting today in Alaska.

Berkshire Hathaway’s portfolio added six new stocks, including the three new secret stocks. Warren Buffett was a net seller of stocks for the eleventh straight quarter.