T-Mobile US (MIL:1TMUS) Net Interest Margin (Bank Only) %

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

MIL:1TMUS T-Mobile US Inc MIL:1TMUS
58 GF Score
Price €166.36
GF Value €199.20
Valuation Modestly Undervalued
! 2 Warning Signs
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What is T-Mobile US Net Interest Margin (Bank Only) %?

Net Interest Margin (Bank Only) % only applies to banks.

MIL:1TMUS
58GF Score
T-Mobile US Inc MIL:1TMUS
Net Interest Margin (Bank Only) % is just one metric. See GF Score™, valuation, warning signs, and more.
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Is T-Mobile US (MIL:1TMUS) Overvalued in 2026?

Based on GuruFocus' analysis, T-Mobile US stock appears to be undervalued. The current stock price of €166.36 is trading 16.5% below its estimated GF Value™ of €199.20. GuruFocus considers T-Mobile US to be Modestly Undervalued.

Key valuation signals for MIL:1TMUS:

  • Net Interest Margin (Bank Only) %:
  • GF Value™: €199.20 vs. price of €166.36 (16.5% below fair value)
  • GF Score™: 58/100 with 2 warning signs

No single metric tells the full story. See the MIL:1TMUS stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

T-Mobile US Business Description

Address 12920 SE 38th Street, Bellevue, WA, USA, 98006-1350
Deutsche Telekom merged its T-Mobile USA unit with prepaid specialist MetroPCS in 2013, and that firm merged with Sprint in 2020, creating the second-largest wireless carrier in the US. T-Mobile now serves about 86 million postpaid and 26 million prepaid phone customers, equal to around 30% of the US retail wireless market. The firm entered the fixed-wireless broadband market aggressively in 2021 and now serves 8 million residential and business customers with its wireless network. It also serves 1 million fiber broadband customers through joint ventures with fiber network owners. T-Mobile owns a stake in these firms, which provide wholesale access to their networks. In addition, T-Mobile provides wholesale services to wireless resellers.
58GF Score

Get the complete analysis for MIL:1TMUS

Net Interest Margin (Bank Only) % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€166.36
Price
€199.20
GF Value