Key Points
T-Mobile plunged 13.3% to $148.58** Friday after SpaceX agreed to buy nationwide 800 MHz spectrum licenses for its Starlink Mobile service.
Verizon and AT&T sank too. AT&T fell 9.8% to $22.18, and Verizon dropped 8.8% to $41.65 on the day its 71-cent dividend went ex.
Cell-tower stocks went the other way: Crown Castle soared 15.6%, American Tower gained 9.3%, and SBA Communications rose 7.3%.
SpaceX is reportedly paying about $8 billion for airwaves that were once on the market for roughly $3.6 billion.
Elon Musk just declared war on your phone bill.
Late Thursday, SpaceX announced a deal to buy a nationwide portfolio of 800 MHz wireless licenses from investment firm Grain Management. The company said the purchase will help Starlink Mobile "become a major mobile carrier in the U.S."
On Friday, Wall Street took him at his word.
The Worst Day Since 2013
T-Mobile fell $22.73, or 13.3%, to close at $148.58. That made it the stock's steepest one-day drop since it began trading under the T-Mobile name in May 2013.
The rest of the Big Three followed. AT&T dropped 9.8% to $22.18. Verizon fell 8.8% to $41.65. Part of that drop reflects its 71-cent quarterly dividend, which went ex on Friday, but most of it was the SpaceX news. By midday, the three carriers had lost roughly $54 billion in combined market value, according to CTOL Digital, nearly seven times what SpaceX is reportedly paying for the airwaves.
T-Mobile was already struggling before Friday. The stock closed at $164.64 on Oct. 5, down 28.5% over the past year, and it was trading near its lowest level since December 2023. Its market value had shrunk from $256 billion at the end of 2024 to about $177 billion.
Why This Spectrum Matters
SpaceX already runs the world's largest satellite constellation, with more than 11,000 satellites and more than 12 million Starlink customers in over 170 countries. What it lacked was a way to reach phones inside buildings.
Low-band 800 MHz airwaves fix that. They travel long distances and pass through walls. SpaceX said the new spectrum "will provide a coverage layer that ensures Starlink Mobile's signal penetrates through obstacles, such as walls, and can provide service to customers' devices even when they are in buildings."
The company also said the Federal Communications Commission approved its plan to launch 15,000 new satellites for Starlink Mobile. Musk called the Grain deal an "earthquake" for "those who understand the spectrum wars," and said it will enable "complete phone coverage in America."
The deal still needs FCC approval. FCC Chair Brendan Carr told CNBC that more competition in the spectrum market is "really good news for the American consumers."
The Carriers Push Back
The phone companies say Musk is buying airwaves, not a network.
"A company can have billions of dollars of spectrum, but if they do not have the network to use it, it's just empty airwaves," Verizon said in a statement to NBC News.
T-Mobile technology president John Saw wrote on LinkedIn: "You can acquire spectrum in a single transaction. You cannot acquire a nationwide, high-performing wireless network overnight."
Some analysts agree. JPMorgan said the deal makes Starlink Mobile's long-term opportunity "more credible," but still sees "limited near-term risk to U.S. wireless incumbents given the time, infrastructure and capital required to build a competitive terrestrial network." TD's Gregory Williams wrote that SpaceX "may be bluffing to keep wireless down and get an [MVNO agreement], but needs to be taken seriously."
That's the fear. Even a bluff can force the carriers to cut prices to keep customers.
The Hidden Winners
Here's the twist. A network that reaches inside buildings in big cities still needs cell towers.
Crown Castle jumped $10.75, or 15.6%, to $79.64. American Tower rose 9.3% to $182.24, and SBA Communications gained 7.3% to $182.49. Investors bet that any new carrier, Starlink Mobile included, will need to rent space on ground towers to deliver real-world indoor coverage in dense areas.
"It chips away at the 'towers are obsolete in a [direct to device] world' narrative," Bernstein's Madison Rezaei wrote. The tower companies needed the help. Over the past five years, American Tower is down more than 30%, SBA about 45% and Crown Castle about 55%.
As we've noted, Musk's companies now sit at the center of Washington's plans, and the new space race is reaching straight into Americans' pockets. SpaceX itself rose 1.3% to $162.57 on Friday.
The Rest of Friday
The broader market shrugged off the telecom wreck. The S&P 500 rose 0.6% to 7,811.54, the Dow gained 423 points, or 0.8%, to 51,654.95, and the Nasdaq added 0.6% to 27,366.17, recovering part of Thursday's AI-driven drop. The VIX, Wall Street's fear gauge, fell to 14.84. Humana was the S&P 500's other big mover, jumping 11.6% to $431.87.
Delta Air Lines finished essentially flat at $82.17 after missing earnings estimates for the first time in two years and cutting its full-year profit forecast to $5.10 to $5.60 a share, down from $6.50 to $7.50 in July. Jet fuel costs are on track to rise $6 billion this year.
Consumers are feeling it too. The University of Michigan's sentiment index fell to 46.3 in October, the second-lowest reading on record, and year-ahead inflation expectations rose to 4.7%.
Oil ended roughly flat after a volatile session. U.S. crude finished near $91.50 a barrel and Brent near $104.25, recovering from early losses after President Trump ruled out an attack on Iran before the midterms. Hurricane Isaias has shut in about 63% of Gulf of Mexico production. The 10-year Treasury yield edged up to 5.24%, and the 2-year rose to 4.79%.
What Lands Next
Tuesday: JPMorgan, Goldman Sachs, Wells Fargo and Citigroup kick off bank earnings season.
Wednesday: September CPI, with forecasters expecting headline inflation near 3.6%. ASML and Bank of America also report.
Thursday: Taiwan Semiconductor reports, along with September retail sales.
For T-Mobile, the immediate question is whether Friday was panic or a preview. The FCC's decision will help answer it.
This article is for informational and educational purposes only and does not constitute investment advice or a recommendation to buy or sell any security.
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