The stock of AT&T Inc. has climbed to its highest level in nearly half a decade. The telecommunication company's share prices ...

AT&T (NYSE: T) stock is seeing big gains in Monday's trading despite a bearish backdrop for the broader market. The company's share price was up 7% as of 3:15 p.m. ET. Meanwhile, the S&P 500 ...

AT&T shares surged Monday after the telecommunications giant reported better-than-expected fourth-quarter results.