T-Mobile (TMUS): Can Fiber Grow Without Consuming Too Much Shareholder Cash?

T-Mobile US, Inc. (NASDAQ:TMUS) wants fiber to deepen relationships with wireless households while partners help finance and operate the networks. Across telecom services stocks, bundling mobile and home internet creates another recurring bill per customer. That strengthens the investment case when retention and service margins repay expansion costs. T-Mobile US, Inc. (NASDAQ:TMUS) trades at 12x forward P/E versus 17x trailing P/E. Trailing P/E uses the past 12 months of earnings; forward P/E uses forecast earnings. Service growth, efficiencies, and repurchases support the earnings outlook, while merger and restructuring costs weigh on reported profits. Second-quarter 2026 diluted EPS rose 5%, from $2.84 to $2.