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T Mobile US (TMUS) Could Be 32% Undervalued As AI Network Push Expands

Simply Wall St·09/29/2026 00:18:27
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T-Mobile US (TMUS) has introduced new AI-driven AutoPilot and Dynamic CX tools, expanded its backup power and transport investments, and signed an MVNO agreement with U-wifi focused on affordable connectivity.

Despite T-Mobile US announcing AI-driven network upgrades, a higher quarterly dividend, and the U-wifi MVNO deal over the past week, the share price has drifted. The 30-day share price return is down 8.23% and the year-to-date share price return is down 16.60%, while the 1-year total shareholder return is down 28.57%. However, the 5-year total shareholder return of 39.54% points to a stronger longer-run record than the recent momentum suggests.

See how T-Mobile US fits into the broader 5G and AI infrastructure story by comparing it with a curated group of 84 AI infrastructure stocks.

T-Mobile US has rolled out AI tools, raised its dividend, and signed on a new MVNO partner, yet the share price has fallen sharply. Is there still enough upside potential after this recent drop to reward new buyers at today’s level?

Most Popular Narrative: 31.6% Undervalued

The most followed narrative on T-Mobile US compares a fair value of $243.38 to the last close at $166.45, which implies a large gap that hinges on broadband, AI deployment and capital returns playing out as expected.

Continued expansion of T-Mobile US 5G broadband and fiber offerings, with higher 2030 broadband targets and early fiber joint venture penetration around 20% in year one, points to further room for service revenue growth as the broadband base scales.

Ongoing deployment of AI across customer care, coding, marketing and network optimization, including progress toward a 75% reduction in inbound care calls and an expected US$2.7b of total AI-driven value, has the potential to lift margins and support earnings.

See why 120 investors see T-Mobile US as 32% undervalued.

Result: Fair Value of $243.38 (UNDERVALUED)

Still, the T-Mobile US story can break if higher wireless bills push churn meaningfully higher, or if aggressive device promos from rivals squeeze margins and cash generation.

Find out about the key risks to this T-Mobile US narrative.

Next Steps

If the mix of pressure and potential around T-Mobile US feels finely balanced, move quickly and review the data that sits behind both the concerns and the upside. Then weigh those signals against your own expectations by checking the 3 key rewards and 1 important warning sign.

Looking for more investment ideas beyond T-Mobile US?

Do not stop your research with T-Mobile US. Broaden your watchlist using focused stock ideas that filter for quality, value, and resilience.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.