Key points
- AST SpaceMobile (ASTS) slipped 3.6% during Wednesday’s session to $66.31, then extended losses to nearly 13% more after hours.
- It's the company's third billion-dollar convertible note offering since October 2025, after raises priced in October and February.
- AST SpaceMobile reported about $2.7 billion in cash as of June 30, before this new debt.
AST SpaceMobile (ASTS) slipped 3.6% on Wednesday, closing at $66.31 after the company said it wants to sell $1 billion in new convertible debt. The stock touched $64.59 during the session, its lowest price in weeks.
The selling did not stop at the closing bell. Shares kept falling after hours, changing hands around $57.80 as of 6:10 p.m. Eastern, a decline of almost 13% from the regular session close and about 16% since Tuesday. Final pricing terms for the notes, meaning the interest rate and conversion price, had not been disclosed as of this writing. AST SpaceMobile’s past two convertible note deals both priced within days of their initial announcement.
ASTS shareholders have seen this headline before. AST SpaceMobile has now gone to the convertible bond market three times since October, asking for roughly $1 billion each time, and each time the stock sold off on the news.
What the company actually announced
On Wednesday morning, AST SpaceMobile said it plans to offer $1.0 billion in convertible senior notes due February 1, 2034, sold privately to large institutional buyers rather than everyday investors. It also gave the banks running the deal a 13-day window to sell up to another $150 million of the same notes if demand holds up.
A convertible note pays interest like a normal bond, but the holder can trade it in for company stock later instead of cash. The exact interest rate and the conversion price, meaning how high AST SpaceMobile stock needs to trade before that swap makes sense, won't be set until the notes actually price, likely within days. Judging by the last two deals, that price has landed around 20 percent above wherever the stock sat right before pricing.
The company also plans to enter a capped call transaction alongside the notes. That's a separate hedge AST SpaceMobile buys for itself, an option contract that caps how much future dilution it takes on if noteholders do convert into stock. It's a routine part of a deal like this one, not a red flag by itself. The bank on the other side of that hedge typically has to short AST SpaceMobile shares to manage its own risk, and that hedging is part of why the stock comes under pressure during pricing week, on top of whatever dilution investors are pricing in.
As for the money itself, the company kept it broad. A portion covers the cost of the capped calls. The rest goes toward what it called "an expanding universe of growth initiatives" and locking down more access to orbit, potentially through partnerships or acquisitions that would let AST SpaceMobile build more of its own launch capacity instead of leaning on outside rocket providers. Nothing specific is signed yet.
The third trip to the well in nine months
Line up all three deals and the pattern is hard to miss.
| Announced | Size | Terms | Stock reaction |
|---|---|---|---|
| October 21, 2025 | $850 million, raised to $1.0 billion at pricing | 2.00% coupon, converts near $96.30, due January 15, 2036 | Fell from $95.69 to $71.35 over the week, about 25% |
| February 11, 2026 | $1.0 billion | 2.250% coupon, converts near $116.30, due April 15, 2036 | Fell 15% the next day, from $96.92 to $82.22 |
| July 15, 2026 | $1.0 billion, plus a $150 million option | Rate and conversion price still to be set, due February 1, 2034 | Slipped 3.6% during the session, then fell close to 13% more after hours: $68.82 to $66.31 to around $57.80 |
That's roughly $3 billion raised, or being sought, through convertible notes alone in nine months. It doesn't count a smaller 4.25% convertible note from before this run started, $50 million of which the company already repurchased last October.
Why keep borrowing with $2.7 billion already in the bank
Buried in Wednesday's filing was a number that cuts the other way. The company said it held about $2.7 billion in cash and restricted cash as of June 30. That figure is preliminary and unaudited, the company's actual second-quarter results aren't finished yet, but it's real money sitting on the balance sheet before this latest billion even lands.
Building a satellite network is not a cheap habit to fund once and walk away from. AST SpaceMobile is targeting roughly 45 more BlueBird satellites for launch in early 2027, and that timeline depends on manufacturing, testing and rocket availability the company doesn't fully control. Separately, it's in advanced talks with Rakuten, the Japanese conglomerate and existing AST SpaceMobile shareholder, over a Japanese government subsidy program that could be worth close to $1 billion for building satellite infrastructure tied to national self-reliance goals. Nothing there is final either.
Put together, this reads less like a company that's short on cash and more like one stockpiling it. Launch schedules slip, government subsidy talks can stall, and a company chasing acquisitions to build its own launch capacity wants dry powder before it needs it, not after. Investors are still allowed to ask whether $1 billion more is necessary right now, and Wednesday's selling says a lot of them think it isn't.
Why this keeps happening
The mechanics explain why a convertible notes headline reliably hits the stock, deal after deal. New shares from a future conversion mean today's shareholders eventually own a smaller slice of the company. Hedging by the banks pricing the deal adds real selling pressure in the days around announcement, separate from that dilution math. And three repeats of the same headline in nine months make traders less willing to wait and see how the terms land before selling first.
AST SpaceMobile stock has now given back about half its value from its 52-week high of $133.86, hit before any of these three offerings. Whether Wednesday's drop fades the way the October and February ones eventually did isn't something this article can predict. Each prior selloff was followed by a stretch of recovery, but each also came before the next request for a billion more.
We covered the space stock group's appetite for capital before, including in our explainer on what every space stock actually does and our look at how Rocket Lab and Iridium helped drag AST SpaceMobile higher in our piece on the space stock rally back in June. Track AST SpaceMobile's SEC filings, including the final terms of this offering once it prices, at /filings/ASTS.
This is general market commentary and not investment advice. Convertible note offerings, capped call transactions and their terms can change before pricing. Always do your own research and consider speaking with a licensed financial professional before making any investment decision.
