
Warren Buffett is keeping the market guessing yet again — and this time, the stakes could be as high as $4.8 billion.
Barron's reports that Berkshire Hathaway Inc (NYSE:BRK) (NYSE:BRK) boosted the cost basis of its "commercial, industrial, or other" holdings by $2 billion in the first quarter and another $2.8 billion in the second quarter, sparking a frenzy over what's hiding in the company's vault of secrets.