Short Interest in T-Mobile US, Inc. (NASDAQ:TMUS) Increases By 78.2%

Key Points

• Short interest jumped 78.2% to 21,359,153 shares as of March 31 (about 1.9% of the stock), increasing potential downward pressure and a days‑to‑cover ratio of 3.5 days.
• Insiders sold roughly $151M of TMUS stock in the last three months, a sizable exit that could weigh on investor sentiment.
• Offsetting growth catalysts: T‑Mobile is partnering with Nvidia/Nokia on AI‑RAN and trialing AI/edge services, while analysts and large institutions (e.g., Norges Bank, T. Rowe) have added positions, supporting a constructive longer‑term case.

T-Mobile US, Inc. (NASDAQ:TMUS - Get Free Report) was the target of a large growth in short interest in March. As of March 31st, there was short interest totaling 21,359,153 shares, a growth of 78.2% from the March 15th total of 11,985,221 shares. Approximately 1.9% of the company's stock are short sold. Based on an average trading volume of 6,061,853 shares, the days-to-cover ratio is currently 3.5 days.

T-Mobile US News Summary

Here are the key news stories impacting T-Mobile US this week:

• Positive Sentiment: Moffett Nathanson upgraded TMUS to Buy, signaling analyst conviction in the company's subscriber and cash‑flow trajectory; upgrades can support price upside if sentiment turns. T-Mobile US NASDAQ: TMUS Raised to Buy at Moffett Nathanson
• Positive Sentiment: T-Mobile is partnering with Nvidia (and Nokia) to integrate AI workloads onto AI‑RAN infrastructure — a potential long‑term revenue/margin tailwind from AI‑enabled network services. T-Mobile (TMUS), Nvidia (NVDA) Integrate AI Applications on AI-RAN Infrastructure
• Positive Sentiment: T‑Mobile is trialing AI live translation and other 5G Advanced/edge use cases (including Serve Robotics demos), supporting future service monetization beyond core wireless plans. T-Mobile US readies AI Live Translation trial
• Positive Sentiment: Serve Robotics and other partners demonstrating 5G‑enabled robots on T‑Mobile’s network highlight incremental commercial opportunities for edge/IoT revenue. The Bull Case For Serve Robotics (SERV) Could Change Following Launch Of 5G Conversational Robot Maggie
• Neutral Sentiment: Top research roundups flag both growth drivers (5G/AI) and rising costs/competitive pressure — mixed analyst views mean stock reaction depends on which narrative dominates. Top Research Reports for Bank of America, GE Aerospace & T-Mobile
• Neutral Sentiment: Expanded Starlink/partner moves in wireless/edge services are worth watching as a potential competitive or complementary force but are not an immediate earnings driver for TMUS. What SpaceX's expanded Starlink coverage means for the IPO
• Negative Sentiment: Insiders sold roughly US$151M of TMUS stock, a sizable delegation of insider exits that often spooks investors and can signal near‑term management or confidence concerns. Insiders At T-Mobile US Sold US$151m In Stock, Alluding To Potential Weakness
• Negative Sentiment: Short interest jumped ~78% to ~21.36M shares as of March 31, raising the proportion of shares bet against TMUS and increasing downward pressure or volatility if negative news persists.
• Negative Sentiment: Peer strength (Verizon’s recent gains tied to fiber and bundling) underscores competitive intensity and margin pressure in the sector — a reminder TMUS faces near‑term tradeoffs between growth spend and margins. Verizon Shares Rise 20.6% in Three Months: How to Play the Stock

Insider Buying and Selling at T-Mobile US

In other T-Mobile US news, insider Mark Wolfe Nelson sold 2,329 shares of the stock in a transaction on Tuesday, February 24th. The stock was sold at an average price of $222.38, for a total transaction of $517,923.02. Following the sale, the insider owned 65,677 shares of the company's stock, valued at approximately $14,605,251.26. This trade represents a 3.42% decrease in their position. The sale was disclosed in a legal filing with the Securities & Exchange Commission, which can be accessed through this hyperlink. Also, Director G Michael Sievert sold 1,089 shares of the stock in a transaction on Tuesday, February 24th. The shares were sold at an average price of $221.85, for a total value of $241,594.65. Following the sale, the director directly owned 125,696 shares in the company, valued at $27,885,657.60. This trade represents a 0.86% decrease in their position. The SEC filing for this sale provides additional information. In the last three months, insiders have sold 694,134 shares of company stock worth $150,847,799. 0.37% of the stock is currently owned by company insiders.

Hedge Funds Weigh In On T-Mobile US

A number of hedge funds and other institutional investors have recently added to or reduced their stakes in TMUS. Norges Bank purchased a new position in T-Mobile US in the 4th quarter worth $1,335,918,000. Price T Rowe Associates Inc. MD raised its stake in T-Mobile US by 30.6% in the 4th quarter. Price T Rowe Associates Inc. MD now owns 27,795,065 shares of the Wireless communications provider's stock worth $5,643,511,000 after acquiring an additional 6,516,968 shares during the last quarter. Wellington Management Group LLP raised its stake in T-Mobile US by 47.5% in the 3rd quarter. Wellington Management Group LLP now owns 13,461,669 shares of the Wireless communications provider's stock worth $3,222,454,000 after acquiring an additional 4,335,368 shares during the last quarter. Dodge & Cox raised its stake in T-Mobile US by 65.2% in the 4th quarter. Dodge & Cox now owns 6,185,972 shares of the Wireless communications provider's stock worth $1,256,000,000 after acquiring an additional 2,442,450 shares during the last quarter. Finally, Viking Global Investors LP raised its stake in shares of T-Mobile US by 81.7% during the 2nd quarter. Viking Global Investors LP now owns 2,845,316 shares of the Wireless communications provider's stock valued at $677,925,000 after buying an additional 1,279,422 shares during the last quarter. Hedge funds and other institutional investors own 42.49% of the company's stock.

Analysts Set New Price Targets

Several analysts have issued reports on TMUS shares. BNP Paribas Exane dropped their target price on T-Mobile US from $300.00 to $275.00 and set an "outperform" rating on the stock in a research report on Friday, January 16th. Royal Bank Of Canada lowered their price objective on T-Mobile US from $270.00 to $255.00 and set an "outperform" rating for the company in a research report on Friday, January 16th. The Goldman Sachs Group lowered their price objective on T-Mobile US from $254.00 to $253.00 and set a "buy" rating for the company in a research report on Wednesday, March 25th. Benchmark reissued a "buy" rating on shares of T-Mobile US in a research report on Thursday, February 12th. Finally, Barclays raised their price objective on T-Mobile US from $240.00 to $245.00 and gave the stock an "overweight" rating in a research report on Thursday, February 12th. One research analyst has rated the stock with a Strong Buy rating, eighteen have given a Buy rating and nine have assigned a Hold rating to the stock. According to data from MarketBeat.com, T-Mobile US has an average rating of "Moderate Buy" and an average price target of $258.30.

T-Mobile US Stock Performance

Shares of TMUS stock opened at $195.71 on Monday. The firm has a market capitalization of $215.65 billion, a price-to-earnings ratio of 20.16, a price-to-earnings-growth ratio of 1.25 and a beta of 0.43. The company has a debt-to-equity ratio of 1.45, a current ratio of 1.00 and a quick ratio of 0.90. The business has a fifty day moving average of $210.22 and a 200 day moving average of $208.88. T-Mobile US has a 1 year low of $181.36 and a 1 year high of $267.96.

T-Mobile US Announces Dividend

The company also recently announced a quarterly dividend, which will be paid on Thursday, June 11th. Investors of record on Friday, May 29th will be paid a $1.02 dividend. The ex-dividend date is Friday, May 29th. This represents a $4.08 dividend on an annualized basis and a yield of 2.1%. T-Mobile US's dividend payout ratio (DPR) is 42.02%.

T-Mobile US Company Profile

T-Mobile US is a national wireless carrier that provides mobile voice, messaging and data services to consumers, businesses and wholesale customers across the United States, Puerto Rico and the U.S. Virgin Islands. The company operates a nationwide mobile network and offers device sales, equipment financing and support services through retail stores, online channels and distribution partners. T-Mobile positions its products around bundled service plans, device offerings and value-added features for both individual and enterprise customers.

Product offerings include postpaid and prepaid wireless plans under the T-Mobile and Metro by T-Mobile brands, as well as connectivity solutions for small and large businesses.

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