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- SpaceX (SPCX) agreed to buy up to 14 MHz of paired 800 MHz spectrum from Grain Management, pending FCC approval.
- T-Mobile fell 13.27%, AT&T 9.81% and Verizon 8.75% on Friday, October 9.
- Tower operators Crown Castle, American Tower and SBA Communications rallied on the prospect of a new tenant.
SpaceX agreed to buy nationwide 800 MHz spectrum for Starlink Mobile, sending T-Mobile down 13%, AT&T 10% and Verizon 9% in their worst sessions in years.
Lead
SpaceX announced on Thursday, October 8, that it had agreed to acquire a nationwide portfolio of low-band spectrum, and the three largest U.S. wireless carriers lost roughly $45 billion in market value the next day. T-Mobile (TMUS) closed down 13.27% at $148.58, AT&T (T) fell 9.81% to $22.18, and Verizon (VZ) dropped 8.75% to $41.65. Verizon's decline was its worst since July 2002, AT&T's its worst since 2000, and T-Mobile's its worst since 2013. SpaceX shares rose 1.25% to $162.57.What Did SpaceX Agree to Buy?
SpaceX agreed to buy a license portfolio of up to 14 MHz of paired spectrum in the 800 MHz band from Grain Management. The price was not disclosed by SpaceX and was valued at about $8 billion in cash in press reports. The deal requires approval from the Federal Communications Commission, and no timeline has been set.
The licenses carry weight because low-band frequencies travel long distances and penetrate walls. SpaceX already held AWS-4, H Block, unpaired AWS-3 and 2 GHz mid-band licenses, but lacked a coverage layer for devices indoors. The company said the purchase "will pave the way for Starlink Mobile to become a major mobile carrier in the US" and described it as the first network operator to deploy both satellite and terrestrial spectrum. The licenses trace to divestitures tied to the 2020 T-Mobile and Sprint merger.
Why Did Wireless Carrier Stocks Fall So Sharply?
The sell-off reflected a change in how investors view Starlink: from a supplement for rural dead zones to a possible national competitor. Until now, satellite-to-phone service filled gaps in terrestrial coverage and was often sold through carrier partnerships. Owning low-band spectrum gives SpaceX the means to serve customers directly, in buildings and cities, where the incumbents earn most of their revenue.
Shares of the three carriers also fell in after-hours trading on Thursday, before the regular session confirmed the scale of the move. European telecom stocks declined as well.
Who Gained From the Deal?
Tower companies were the clear beneficiaries. Crown Castle (CCI) rose more than 13% in Friday trading, American Tower (AMT) more than 8% and SBA Communications (SBAC) more than 6%. A terrestrial Starlink Mobile network would need thousands of ground sites, creating a prospective new tenant, though none has signed a lease.
How to Buy SpaceX Stock After the Spectrum Deal?
What Comes Next for Starlink Mobile?
The FCC review is the next gate. Regulators will weigh the transfer of the licenses and the competitive effects of a satellite operator entering terrestrial wireless. The agency has also approved SpaceX's second-generation Starlink Mobile constellation of 15,000 satellites designed around 2 GHz spectrum, which the company says will deliver more than 100 times the bandwidth of current hardware.
For T-Mobile, AT&T and Verizon, the questions are how quickly SpaceX can build out a ground network, what it will charge, and whether the carriers respond with pricing or spectrum moves of their own. Network construction and device support are likely to take years rather than quarters.
Outlook
The deal turned a long-discussed threat into a concrete one, and the market repriced the incumbents within a single session. Regulatory approval, tower leasing agreements and the pace of device compatibility will set the timeline. Until then, the three carriers face a valuation reset that has erased tens of billions of dollars, while SpaceX and the tower operators hold the momentum.
Mentioned tickers: SPCX, TMUS, T, VZ, CCI, AMT, SBAC