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T-Mobile USTMUS +2.04%78 Shiller PE Ratio is 30.18 as of Aug. 28, 2026, which is 37% below its 10-year median of 47.56. GuruFocus rates TMUS with a GF Score™ of 78/100 and a GF Value™ of $230.49 (Modestly Undervalued). The stock has 1 warning sign investors should review. Among 218 Telecommunication Services companies, T-Mobile US ranks worse than 73.39% on this metric.
As of today (2026-08-28), T-Mobile US's current share price is $181.37. T-Mobile US's E10 for the quarter that ended in Jun. 2026 was $6.01. T-Mobile US's Shiller PE Ratio for today is 30.18.
The historical rank and industry rank for T-Mobile US's Shiller PE Ratio or its related term are showing as below:
TMUS'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 28.74 Med: 47.56 Max: 60.86
Current: 30.18
During the past years, T-Mobile US's highest Shiller PE Ratio was 60.86. The lowest was 28.74. And the median was 47.56.
TMUS's Shiller PE Ratio is ranked worse than 73.39% of 218
companies
in the Telecommunication Services industry
Industry Median: 17.41
vs TMUS: 30.18
E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.
T-Mobile US's adjusted earnings per share data for the three months ended in Jun. 2026 was $2.990. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $6.01 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
T-Mobile US (NAS:TMUS) Shiller PE Ratio Explanation
Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.
Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.
Be Aware
Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.
T-Mobile US Shiller PE Ratio Related Terms
T-Mobile US Shiller PE Ratio Historical Data
* Premium members only.
The historical data trend for T-Mobile US's Shiller PE Ratio can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
For the Telecom Services subindustry, T-Mobile US's Shiller PE Ratio, along with its competitors' market caps and Shiller PE Ratio data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
T-Mobile US Shiller PE Ratio vs Telecommunication Services Industry
For the Telecommunication Services industry and Communication Services sector, T-Mobile US's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where T-Mobile US's Shiller PE Ratio falls into.
For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.
T-Mobile US's Shiller PE Ratio for today is calculated as
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
T-Mobile US's E10 for the quarter that ended in Jun. 2026 is calculated as:
For example, T-Mobile US's adjusted earnings per share data for the three months ended in Jun. 2026 was:
Add all the adjusted EPS together and divide 10 will get our E10.
Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.
T-Mobile US (TMUS) has a Shiller PE Ratio of 30.18 as of Aug. 28, 2026. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on T-Mobile US and its competitors. This is 37% below median its historical median of 47.56. Over the past decade, T-Mobile US's Shiller PE Ratio has ranged from 28.74 to 60.86. According to the industry distribution chart, T-Mobile US ranks #160 out of 218 companies in the Telecommunication Services industry, placing it in the top 73.4%.
Is T-Mobile US's Shiller PE Ratio too high?
T-Mobile US's current Shiller PE Ratio of 30.18 is 37% below median its 10-year median of 47.56. Over the past 10 years, this metric has ranged from a low of 28.74 to a high of 60.86. The Telecommunication Services industry median Shiller PE Ratio is 17.41. T-Mobile US's value of 30.18 is 73.3% above this industry median. Based on the distribution chart, T-Mobile US ranks #160 out of 218 companies in the Telecommunication Services industry, which is below the industry midpoint. Overall, T-Mobile US has a GF Score™ of 78/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does T-Mobile US's Shiller PE Ratio compare to VZ and T?
According to the Telecommunication Services industry distribution chart, T-Mobile US ranks #160 out of 218 companies for Shiller PE Ratio. This places T-Mobile US in the lower half of its industry. The industry median Shiller PE Ratio is 17.41. T-Mobile US's value of 30.18 is 73.3% above this benchmark. Historically, T-Mobile US's own Shiller PE Ratio has ranged from 28.74 to 60.86 over the past decade. While the company's 10-year median is 47.56 vs. the industry median of 17.41, T-Mobile US has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Shiller PE Ratio for a Telecommunication Services company?
The median Shiller PE Ratio among Telecommunication Services companies is 17.41, based on 218 companies in the industry. Companies in the top quartile (top 25%) have a Shiller PE Ratio significantly above this median, while those in the bottom quartile fall well below. However, Shiller PE Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. T-Mobile US's current Shiller PE Ratio of 30.18 is 73.3% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Shiller PE Ratio mean?
A high Shiller PE Ratio can signal that a stock is expensive relative to its fundamentals. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on T-Mobile US and its competitors. For the Telecommunication Services industry, the median Shiller PE Ratio is 17.41 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. T-Mobile US's current Shiller PE Ratio is 30.18, which is 37% below median its own 10-year median of 47.56. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is T-Mobile US stock overvalued right now?
Based on GuruFocus' analysis, T-Mobile US (TMUS) is currently considered Modestly Undervalued. The stock's GF Value™ is $230.49, compared to a current price of $181.37 — trading 21.3% below its estimated fair value. The current Shiller PE Ratio is 30.18, which is 37% below median its 10-year median of 47.56 and 73.3% above the Telecommunication Services industry median of 17.41. T-Mobile US's overall GF Score™ is 78/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shiller PE Ratio calculated?
Shiller PE Ratio is calculated from a company's financial statements. For T-Mobile US (TMUS), the current Shiller PE Ratio is 30.18 as of Aug. 28, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is T-Mobile US (TMUS) Overvalued in 2026?
Based on GuruFocus' analysis, T-Mobile US stock appears to be undervalued.
The current stock price of $181.37 is trading 21.3% below its estimated GF Value™ of $230.49.
GuruFocus considers T-Mobile US to be Modestly Undervalued.
Key valuation signals for TMUS:
Shiller PE Ratio: 30.18 (37% below median its 10-year median of 47.56)
GF Value™: $230.49 vs. price of $181.37 (21.3% below fair value)
Industry Position: 73.3% above the Telecommunication Services median (#160 of 218)
No single metric tells the full story. See the TMUS stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
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.
78GF Score
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