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Watch Out for One NASDAQ- Listed Telecommunications Stock– TMUS

Dec 12, 2025 | Team Kalkine
Watch Out for One NASDAQ- Listed Telecommunications Stock– TMUS
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  • TMUS:NASDAQ
  • Investment Type
    Large-cap
  • Risk Level
  • Action
  • Rec. Price (US$)

T-Mobile US Inc

T-Mobile US, Inc. (NASDAQ: TMUS) is a provider of wireless communications services, including voice, messaging and data, under its flagship brands, T-Mobile and Metro by T-Mobile, and Mint Mobile, in the United States, Puerto Rico and the United States Virgin Islands. It provides wireless communications services primarily using its 4G Long Term Evolution network and its 5G technology network.

Key Business and Financial Updates:

  • Record Customer Growth and Market Share Expansion: T-Mobile delivered its strongest Q3 in over a decade, generating 2.3 million postpaid net customer additions and 1.0 million postpaid phone net adds, both the best in the U.S. industry. Total broadband net additions reached 560,000, driven by 506,000 5G broadband additions and continued momentum in fiber. Customer gains were broad-based across postpaid, prepaid, and broadband, lifting total customer connections to a record 139.9 million. The company’s consistently low churn, expanding brand consideration, and demand for fixed-wireless access underscore a widening competitive moat.
  • Financial Outperformance with Broad-Based Profitability Gains: Industry-leading subscriber momentum translated into robust financial results, with service revenues rising 9% year-over-year to USD 18.2 billion and postpaid service revenues up 12% to USD 14.9 billion—well ahead of peers. Net income reached USD 2.7 billion and diluted EPS stood at USD 2.41 despite USD 208 million in impairment charges. Core Adjusted EBITDA grew 6% year-over-year to USD 8.7 billion, while operating cash flow increased 21% to USD 7.5 billion. Adjusted free cash flow totaled USD 4.8 billion, supporting USD 3.5 billion in shareholder returns during the quarter.
  • Sustained Network Leadership and Technology Differentiation: T-Mobile reinforced its leadership in 5G performance, recognized by Opensignal as the global leader in 5G coverage experience and reliability. It continues to outpace peers in fixed wireless home internet speeds, delivering median download rates nearly 50% faster than the next competitor. Technology advancements—including broad deployment of L4S and carrier aggregation across most sites—strengthen throughput and network capacity, enhancing customer experience and supporting future subscriber expansion.
  • Strategic Execution, Strong Balance Sheet, and Capital Allocation Discipline: The company’s operational scale and disciplined cost management enabled increased capital investment, with USD 2.6 billion spent on network and infrastructure builds during the quarter, including integration costs from the US cellular acquisition. Despite elevated capex, free cash flow remained resilient and continued to fund aggressive share repurchases and dividends. T-Mobile’s balance sheet capacity and elevated operating cash flow provide a robust foundation for ongoing network leadership and integration of newly acquired assets.
  • Raised 2025 Outlook Reflecting Strong Forward Momentum: Management raised full-year guidance across all key metrics, projecting 7.2–7.4 million postpaid net additions (up from 6.1–6.4 million), Core Adjusted EBITDA of USD 33.7–33.9 billion, and operating cash flow of USD 27.8–28.0 billion. Adjusted free cash flow guidance was also increased to USD 17.8–18.0 billion, reflecting improved operational visibility. The strengthened outlook highlights durable customer demand, successful integration of acquisitions, expanding broadband penetration, and continued margin expansion, positioning T-Mobile for sustained profitable growth.

Key Risks for T-Mobile US, Inc. (NASDAQ: TMUS):

  • Dependence on Sustained Subscriber Growth to Support Premium Valuation: T-Mobile’s financial model and elevated valuation rely heavily on continued industry-leading postpaid and broadband net additions; any slowdown in switching activity, saturation in fixed wireless access, or competitive responses from AT&T and Verizon could compress service-revenue growth, narrow margin expansion, and weaken free cash flow generation.
  • Rising Capital Intensity and Integration Execution Risk: The company’s aggressive network buildout—including expanded 5G deployment, greenfield site construction, and integration of acquired assets such as UScellular and fiber platforms—demands substantial ongoing capital expenditures. Delays, cost overruns, or operational hurdles could reduce returns on invested capital and pressure free cash flow, particularly as spectrum and infrastructure requirements scale.
  • Exposure to Technology Perception and Network Leadership Risks: T-Mobile’s differentiation strategy is anchored in network performance leadership; however, rapid technological shifts, competitors accelerated mid-band spectrum deployments, or unforeseen performance issues could erode this advantage. Any deterioration in perceived network quality would directly impact customer retention, churn metrics, and the company’s ability to command premium growth rates.

Technical Observation (on the daily chart):

  • Trend and Price Structure: TMUS remains in a clear downtrend, trading below both the 21-day and 50-day moving averages, which continue to slope downward. The stock recently retested its 1-year low near USD 195 and has repeatedly failed to break above the USD 208–215 resistance area, indicating sustained selling pressure and weak trend structure.
  • Momentum, Volume Behavior and Market Strength: The RSI near 28 signals oversold conditions, but without meaningful volume support, suggesting limited buyer conviction. Momentum remains aligned with the broader decline, with no bullish divergence forming, indicating that downside pressure persists despite the oversold reading.
  • Key Levels and Tactical Implications: Key support sits at USD 194–195, and a breakdown could trigger further downside. A meaningful recovery would require a firm breakout above USD 208 and then USD 215 to signal trend stabilization. Until those levels are cleared, any rebounds are likely to face resistance within the existing bearish setup.

T-Mobile US, Inc. (TMUS) continues to demonstrate decent operating momentum, delivering record postpaid, broadband, and overall customer additions in Q3 2025 while reinforcing its leadership in 5G coverage, reliability, and fixed-wireless performance. Strong subscriber growth translated into robust financial results, including 9% service-revenue growth, USD 2.7 billion in net income, USD 8.7 billion in Core Adjusted EBITDA, and USD 4.8 billion in adjusted free cash flow, supporting substantial shareholder returns. The company remains disciplined in capital allocation, investing heavily in network expansion and integrating recent acquisitions, while raising full-year guidance across customer additions, EBITDA, cash flow, and capex, reflecting high confidence in sustained operational strength. However, TMUS remains exposed to risks such as dependence on continued subscriber growth, rising capital intensity tied to network and acquisition integration, and sensitivity to maintaining perceived network leadership. Technically, the stock remains in a downtrend below key moving averages, with oversold momentum but weak volume support, and faces resistance at USD 208–215, with critical support near USD 194–195.

As per the above-mentioned price action, important resistance near USD 208-USD 215, momentum in the stock over the last month, and technical indicators analysis, a ‘WATCH’ rating has been given for T-Mobile US, Inc. (NASDAQ: TMUS) at the closing price of USD 195.33, as of December 11, 2025. 

Individuals can evaluate the stock based on the support and resistance levels provided in the report in case of keen interest taking into consideration the risk-reward scenario. 

Markets are trading in a highly volatile zone currently due to certain macro-economic issues and prevailing geopolitical tensions. Therefore, it is prudent to follow a cautious approach while investing.

Related Risk: This report may be looked at from a high-risk perspective, and a recommendation is provided for a short duration. This report is solely based on technical parameters, and the fundamental performance of the stocks has not been considered in the decision-making process. Other factors which could impact the stock prices include market risks, regulatory risks, interest rates risks, currency risks, social and political instability risks etc. 

Note 1: Past performance is not a reliable indicator of future performance.

Note 2: The reference date for all price data, currency, technical indicators, support, and resistance level is December 11, 2025. The reference data in this report has been partly sourced from REFINITIV.

Note 3: Investment decisions should be made depending on an individual's appetite for upside potential, risks, holding duration, and any previous holdings. An 'Exit' from the stock can be considered if the Target Price mentioned as per the Valuation and or the technical levels provided has been achieved and is subject to the factors discussed above.

Note 4: Target Price refers to a price level that the stock is expected to reach as per the relative valuation method and or technical analysis taking into consideration both short-term and long-term scenarios.

Note 5: ‘Kalkine reports are prepared based on the stock prices captured either from the New York Stock Exchange (NYSE), NASDAQ Capital Markets (NASDAQ), and or REFINITIV. Typically, all sources (NYSE, NASDAQ, or REFINITIV) may reflect stock prices with a delay which could be a lag of 15-20 minutes. There can be no assurance that future results or events will be consistent with the information provided in the report. The information is subject to change without any prior notice.


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Past performance is not a reliable indicator of future performance.