Yet, Buffett’s Berkshire Hathaway is doubling down on the company, which it first invested in more than a decade ago. The conglomerate bought up about 377,736 shares totaling ar

The Berkshire Hathaway chief sticks to a winning investing formula, but he does not sit still.

Six blue-chip stocks aggressively backed by Warren Buffett are on sale on Wall Street as the year draws to a close, mainly due to broad economic factors and stock market fashion. That makes them worth a look,