Up 60% in Three Months, Can This Bargain Stock Keep Gaining?

Signet Jewelers (SIG -1.01%) is the world's largest retailer of diamond jewelry, but as a leader in a mature market, the stock has been overlooked by investors hungry for growth in the artificial intelligence (AI) era.That's led Signet, which owns banners like Kay, Jared, and Zales, to trade at a bargain valuation, and the stock looks more attractive after surging on its first-quarter earnings report. The company returned to same-store sales growth for the first time in several quarters and beat estimates o ...