AST SpaceMobile Has Lost Two-Thirds of Its Value. Here's What Actually Changed This Week, and What Didn't

AST SpaceMobile (ASTS) has had a brutal week. At about $43, the stock is down roughly 32% from last Tuesday's $63.12 close and about 68% from its May 28 high of $133.86, valuing the whole company at around $16.8 billion. Three things hit at once: a big spectrum move by SpaceX, an analyst downgrade, and a sharp rise in interest rates. Here is what drove the drop, what has not changed, and what to watch next.

What hit the stock

1. SpaceX's $8 billion spectrum deal. SpaceX agreed to buy up to 14 MHz of 800 MHz spectrum from Grain for about $8 billion, nearly three times the $2.9 billion in cash Grain paid T-Mobile for it just 58 days earlier. The spectrum does not work with SpaceX's current direct-to-cell satellites, so both JPMorgan and Goldman Sachs expect it to be used on cell towers. Investors read that as SpaceX preparing to compete more directly with wireless carriers, AST's partners and sales channel. Not everyone sees an immediate threat: JPMorgan sees limited near-term risk to the carriers, TD Cowen thinks a ground network would take years and more than $80 billion to build, and tower stocks jumped on the news.

2. Piper Sandler's downgrade. Piper Sandler cut AST to Neutral over the pace of satellite launches. Even so, the firm argued that a more aggressive SpaceX makes it more urgent for carriers to partner with an independent operator like AST.

3. Rates. Inflation data showed CPI at 3.7%, the Fed raised rates in September, and the 10-year Treasury yield is around 5.3%, its highest since 2002. Long-duration growth stocks, whose value depends on profits years in the future, tend to fall hardest when rates move like this. Other space stocks, including Rocket Lab and Planet Labs, fell alongside AST.

What hasn't changed

None of this week's news changed one of AST's contracts, licenses or launch bookings. The business looks like this:

The SpaceX question

SpaceX has made clear it wants carriers' customers, not just their spectrum. "I anticipate us to be able to acquire quite a few of their customers," SpaceX President Gwynne Shotwell said. AST works the other way: it sells through carriers and shares revenue with them, which is why carriers have reason to back an independent partner. AT&T CEO John Stankey called SpaceX's plan "not a viable strategy."

Timing matters too. SpaceX's own target for Starlink Mobile is the end of 2027, and its next-generation direct-to-cell satellites depend on Starship, which first reached orbit on September 28.

Launches and balance sheet

SpaceX itself launched BlueBirds 8 through 13 on Falcon 9 rockets. AST has 10 more launches booked across two providers, and BlueBirds 14 to 16 arrived at Cape Canaveral this weekend. Production runs through BlueBird 50, with about 45 satellites targeted in orbit by early 2027.

AST reports more than $3.7 billion of pro forma liquidity and about $1.3 billion of revenue backlog. It has guided 2026 revenue of $150 million to $200 million, and each satellite costs about $21 million to $23 million including launch. The gap between that revenue and a $16.8 billion valuation shows how much of the stock's value rests on future growth, which is exactly why rising rates hurt it so much.

What analysts say

Recent deals offer reference points: Amazon is paying $11.6 billion for Globalstar and Rocket Lab about $8 billion for Iridium. The heavy short interest cuts both ways. It reflects real skepticism, but it can also amplify moves in either direction when news arrives.

The risks are real

• Execution. AST still has to launch dozens of satellites on schedule, and launch pace is exactly what Piper Sandler flagged.
• Competition. SpaceX has far more capital, its own rockets and a stated goal of winning carriers' customers.
• Rates. If yields keep rising, stocks valued on distant profits could stay under pressure regardless of company news.
• Regulatory timing. Key approvals, including Ligado L-band, are still pending.

What to watch

• BlueBirds 14 to 16 launch, now at Cape Canaveral.
• The FCC vote on October 29 on making another 482 MHz eligible for satellite-to-phone leasing.
• Beta service with partners expected this year.
• Third-quarter results next month.
• The FCC decision on Ligado L-band.
• A final J-LEO agreement in Japan.