Trading Near Its 52-Week Low, Is Domino's Pizza Stock a Bargain Buy?

Normally, news that Warren Buffett has added a stock to his portfolio sends the value of that stock rallying. But in the case of Domino's Pizza (DPZ 0.30%), that just hasn't been the case. In November, investors learned that Berkshire Hathaway had bought 1.3 million shares of the pizza seller. And yet, shares of Domino's have been sliding in recent months. And over the past 12 months, its returns have been flat.Entering trading this week, the restaurant stock was sitting within 8% of its 52-week low of $39 ...