Berkshire bought 1,277,256 shares of the global pizza delivery chain, which were worth $550 million at the end of the quarter. Domino's shares soared on the news after hours on Thursday, which is typical when Buffett's company buys a new stock. Domino's finished the after-hours session up 7.8%.

Regulatory filings revealed that Berkshire Hathaway (BRK.B), which is run by the legendary value investor Warren Buffett, bought new stakes in Domino’s Pizza (DPZ) and Pool Corp (POOL) in Q3. In this article, we’ll discuss whether it is worthwhile to ...