T-Mobile adds fewer wireless subscribers than expected amid intense competition

T-Mobile added fewer wireless subscribers in the fourth quarter than analysts had expected, as rivals extended aggressive deals and offers to lure customers.

Shares of the company fell about 3.4% in premarket trading on Wednesday.

During the October-December period, telecom operators typically ramp ‌up promotions ⁠around ⁠Black Friday and Cyber Monday, offering steep discounts on devices and plans to capitalize on holiday shopping.