Newsletter · · Ashutosh Agarwal

Rocket Lab Buys Iridium as AST SpaceMobile Raises Into Weakness - The Satellite & Space-Comms Race - Week of July 17, 2026

Satellite and space-comms podcast intelligence for the week of July 10 to 17, 2026. Rocket Lab is buying Iridium's already-profitable constellation, AST SpaceMobile raised a convertible into a weak tape while guiding to 45 satellites by early 2027 and a possible Golden Dome defense win, and two value investors picked apart SpaceX's $28.5 trillion market claim.

The Satellite & Space-Comms Race

Week of July 17, 2026: Rocket Lab Buys Iridium as AST SpaceMobile Raises Into Weakness

A funny thing happened on the way to building your own satellite network: you buy someone else's. This week the space podcasts served up the single most consequential piece of news in the launch business all year, and it was almost buried under a two-hour SpaceX valuation debate and three straight days of AST SpaceMobile fans arguing on the internet. Let's get into it.

TL;DR

  • Rocket Lab is buying Iridium. Space-industry podcast Off-Nominal walked through the logic: Iridium is already profitable, generated more revenue than Rocket Lab did last year, and hands Peter Beck the operating satellite constellation he's been promising to build for years, without the years of building. This is the story of the week.
  • AST SpaceMobile raised money at a bad-looking price, on purpose. ASTS sold a convertible bond struck at $58, and the company's most devoted followers spent an episode explaining why doing it now, into a weak market and a Blue Origin rocket failure, was the disciplined move. New data point: a hard launch guidance of 45 satellites in orbit by early 2027, and hints that a defense "Golden Dome" win could add its own 240-satellite production line.
  • Is SpaceX really worth $2 trillion? Two value investors say the growth story is real and the math is nuts. On The Investor's Podcast, the hosts picked apart SpaceX's claimed $28.5 trillion total market, roughly a quarter of world GDP, and landed on "the business is great, the number is fantasy."

What's new

1. Rocket Lab is buying Iridium, the constellation it always said it would build

On Off-Nominal ("247 - RTGs Don't Grow on Trees," July 10), hosts Jake Robins and Anthony Colangelo, space-industry commentators, not investors, talked through Rocket Lab's acquisition of Iridium, and one of them summed up his reaction in three words: "damn, that's so obvious."

Here's why it clicks. Rocket Lab (RKLB) has said on earnings call after earnings call, usually in founder Peter Beck's voice, that it intends to run its own satellite constellation once its new Neutron rocket is flying. But, as the hosts pointed out, the company never actually filed for one with regulators. So either it was moving in secret or it wasn't moving at all. Buying an existing, working network answers the question:

"For years Rocket Lab had said, we're going to run our own constellation... but they never had filed anything... this gets them right into a constellation that not only generates profit right now, like Iridium was profitable and the revenue was more than Rocket Lab's revenue last year."

That last line matters. Iridium isn't a science project, it's a cash-generating business with a 66-satellite network, deep government and emergency-services relationships, and a niche Starlink can't easily copy: low-data-rate service that keeps working in bad weather ("when you're Starlink, you'll be dropping off if it starts raining"). Iridium has also been pushing into the market for a GPS alternative, "position, navigation and timing," or PNT, selling a small chip (an ASIC) that lets a device fall back on its satellites when GPS is being jammed. In an era of rising GPS jamming, the hosts framed that as exactly the kind of high-trust, low-volume, government-flavored market Rocket Lab already sells rockets into. Iridium also recently bought the rest of Aireon, its aircraft-tracking affiliate.

Why it moves numbers: This reshapes two names at once. For RKLB, it converts a someday-constellation ambition into a real, profitable recurring-revenue business and a defense/PNT growth angle, and, awkwardly for the launch thesis, raises the "why launch for anybody else?" question if a big slice of future revenue comes from services rather than selling rides. For Iridium (IRDM) holders, it's a takeout. One caution worth stating plainly: the hosts did not disclose a deal price. The "$8 billion" figure that came up was their back-of-envelope guess at what building a constellation from scratch would cost, not confirmed terms. (Their line: "some may say Peter Beck just bought Iridium for two Mars sample returns," a nod to the $4 billion price Rocket Lab and Blue Origin have both floated for flying NASA's abandoned Mars Sample Return mission.) Treat the strategic logic as well-argued podcast commentary; wait for the filing for the actual numbers.

2. AST SpaceMobile's convertible bond: ugly optics, defensible logic

Three of this week's episodes came from the AST SpaceMobile Podcast, a show run by two anonymous long-time shareholders who go by "Anpanman" and "Kook." They are cheerleaders, bulls to the bone, so weight their read accordingly. But the July 16 episode, "Why Did AST SpaceMobile Do a Convert at $58?", is the most useful thing they've done in a while, because it wrestles honestly with a decision that looks bad on the surface.

The facts: AST SpaceMobile (ASTS) sold a convertible bond struck at $58 with a 1.65% coupon. (A "convertible" is a bond that can turn into stock; the "strike" is roughly the share price at which that conversion matters.) The company also bought a "cap call," a hedge that pushes the effective conversion price up to about $149, softening future dilution, which raises the all-in cost to roughly 3.25%. Raising money with your stock beaten down is exactly what shareholders hate. So why now?

The hosts' answer, and it's a good one: because waiting looked riskier than acting.

"SpaceX credit is widening and there's no clean, unsecured bond for ASTS. So in the model input, you've got to find a reference credit and you're not going to trade tight to SpaceX... you're going to be trading wide to SpaceX, which is widening in a market that's cheapening because of supply. It's July... now, or you get some stale French fries later."

Unpack that: when bankers price a risky company's convertible, they lean on a comparable "reference" credit, and for space, that reference is SpaceX. SpaceX's own borrowing costs have been rising (the hosts likened it to "the Oracle widening," a company whose debt became a market bellwether), the whole convertible market is getting cheaper because the Magnificent 7 have suddenly turned into big bond issuers (Google and Meta doing ~$20 billion deals), and the space sector had already sold off on Iran-related jitters. Add a Blue Origin rocket failure ("the Blue Origin stuff was certainly a setback") that threatens launch capacity, and management, who'd said weeks earlier they wouldn't do a convert, decided to grab cash while they still could.

The balance-sheet color was the real news: ASTS is sitting on about $3 billion in cash, now roughly $2.7 billion as it spends, and the hosts expect it to spend maybe half a billion fast buying Falcon 9 launch slots from SpaceX. Their framing: "we have to be thinking like a hyperscaler now... this company needs real money, too, because if we want to play adult games, we need to have adult money."

Why it moves numbers: Two fresh, model-relevant facts fell out of these episodes. First, a hard launch cadence guidance: 45 satellites in orbit by early 2027. Second, and potentially bigger, repeated, specific hints that a defense win under the "Golden Dome" missile-defense initiative could require an extra 240 satellites as its own dedicated production line. The hosts tied that to visible, checkable activity: a 400,000-square-foot facility in Midland, Texas and ~500 open job postings ("we were all laughing, how's that possible? Well, it's possible because it's happening"). Whether or not you buy their enthusiasm, capacity is being built ahead of a contract they clearly expect.

3. Chris Sambar's move to T-Mobile: the ASTS bulls' "biggest catalyst"

The July 13 episode, "Why the Street Has No Clue About AST SpaceMobile's Biggest Catalyst Yet", is one long argument that a personnel change is a stock catalyst. The person: Chris Sambar, former president of network at AT&T, the executive who built and deployed AT&T's 5G and its FirstNet public-safety network, and, crucially, a former AST SpaceMobile board member who sat on its network-and-spectrum subcommittee. He has now joined T-Mobile as chief enterprise officer.

The host's case is that you could not invent a more connected advocate inside T-Mobile:

"You couldn't ask for a more positive and connected advocate for AST SpaceMobile than Chris Sambar... this guy sat on the board of AST SpaceMobile. He was intimately familiar with, and friends with, the technology, the roadmap, all that stuff."

He also dug up the origin story, AST founder Abel Avellan first pitched Sambar at AT&T through FirstNet; AT&T CEO John Stankey later described AST's technology as "five to 10 years ahead of where Starlink was"; early Blue Walker 3 tests hit around 21 megabits per second.

Why it moves numbers: The bull logic is a re-rating bet. When Verizon joined AST back in the day, the host says, the stock went "from $5 to $39." He's explicit that a T-Mobile deal "is definitely not priced in" because sell-side analysts aren't modeling it. That's the actionable claim, and also where you should keep your skeptic's hat on. An executive changing jobs is not a signed carrier contract, and the entire episode is a bull talking his own book.

4. The technology surprise: AST's satellites got a lot more efficient

Buried in the July 13 "Volcano About to Explode?" episode was the most concrete technical update of the week. AST reportedly demonstrated 98.9 megabits per second over a 10 MHz channel, a measure of "spectral efficiency," which is just how much data you can squeeze through a given slice of airwaves. In plain terms, that's about 10 bits per hertz, versus the roughly 2.5–3 (with an upside case of 4) the host had been plugging into his own spreadsheet:

"This is a complete shock to my financial model... The more of it means more of these premium use cases you can meet for a given constellation size."

Why it moves numbers: If a satellite can move several times more data than assumed, the same number of satellites can serve more paying, premium users, which flows straight into revenue-per-satellite assumptions. The host is careful (for once) to note there isn't a clean one-to-one link between data thrown and dollars earned, "but it sure as hell is not zero." He also stressed this stays a bandwidth-constrained premium service, not a replacement for watching Netflix at home.

5. Spectrum keeps stacking up for AST

Same week, the bulls flagged three regulatory/spectrum threads worth a hedge-fund analyst's attention:

  • Grain Management deal approved. The FCC approved a T-Mobile/Grain Management spectrum arrangement on July 1, and AST filed applications to test the band (an "STA," or Special Temporary Authority) the very next day, July 2. That 800 MHz spectrum sits right next to AT&T and Verizon's pooled 850 MHz, and Grain faces a build-out deadline it reportedly can only meet with AST's help. A decision on who lights up the spectrum is expected before the end of November.
  • Japan (JLEO). AST disclosed, for the first time in a Reg FD filing, that it's in "advanced discussions" on a Japanese low-Earth-orbit program with Rakuten as the counterparty. The bulls put the funding at $900 million with matching investments, roughly $2 billion total.
  • Ligado. A rumor (not yet in the docket) that Ligado is in talks to settle its $39 billion "takings" lawsuit against the Department of Defense, the case arguing the government effectively confiscated its spectrum. A settlement could eventually let Ligado's valuable spectrum consolidate with AST, though the host expects that on a "timescale of years."

The debate: how big is direct-to-device, really?

This week gave us both sides in unusually clean form. Direct-to-device, or D2D, is the whole thesis: ordinary phones connecting straight to satellites when they're out of cell range, no special hardware.

The bull case (AST SpaceMobile Podcast). The bulls argue the real prize isn't beating Starlink on speed, it's that the world's mobile carriers don't want to work with Starlink at all, because Starlink's endgame (a global phone plan you can roam anywhere on) is an existential threat to a regional carrier's core business. In that framing, the AT&T/Verizon/T-Mobile joint venture isn't a cartel to squeeze AST on price (that's the bear read, associated with analyst Tim Farrar, whom the host pointedly won't name twice). It's an MVNO counter to Starlink, a way for carriers to line up behind the one partner that isn't trying to eat them:

"I don't think any MNOs from here on, unless they want to commit strategic suicide, will actively choose to work with Starlink... so now whether we're delayed by a quarter, two quarters, three quarters, it's not really as important."

That's a convenient conclusion for someone long a company that keeps slipping its timeline, so hold it at arm's length. But it's a genuine argument: if AST's delays no longer cost it deals, the competitive clock stops mattering as much.

The bear/skeptic case (The Investor's Podcast). The value investors on The Investor's Podcast came at connectivity from the numbers and found the addressable-market claims wildly stretched. SpaceX's prospectus, they said, pins $1.6 trillion on connectivity alone, built on assumptions like every household on Earth (1.8 billion, at $31/month) buying satellite broadband. Their pushback:

"I find it hard to believe that they will both penetrate every household on earth and have 100% usage... they currently have 10 million customers... maybe more like 10% of global households at a price closer to $25 a month. That alone cuts the TAM to $65 billion."

And on the AST-vs-Starlink question specifically, they gave the crispest consumer framing anyone offered all week:

"ASTS can cost something like maybe $15 a day. Starlink might cost you something like $100 a month. So depending on how often you're outside of a standard cell tower range, both products can make sense. If you're out of range for more than a week per month, then Starlink makes a lot more sense."

The synthesis: the two shows aren't really contradicting each other. The bulls are arguing about who the carriers pick; the skeptics are arguing about how big the pie actually is and how it splits by usage. Both can be right: AST can win the carrier-partner game and still be selling into a premium, occasional-use niche that's a fraction of the trillion-dollar headline. The number that reconciles them is average revenue per user times realistic penetration, and nobody on these podcasts has that yet.

Stocks in play

AST SpaceMobile (ASTS), INVESTOR-heavy coverage (three bull episodes)

  • Bull: Technology leaping ahead (near-10 bits/Hz spectral efficiency vs. ~3 modeled); a friendly heavyweight (Chris Sambar) now inside T-Mobile; spectrum stacking (Grain, JLEO ~$2B, potential Ligado); a possible Golden Dome defense win worth its own 240-satellite line; ~$2.7B cash after the raise.
  • Bear: Still pre-revenue and burning cash; had to raise into a weak tape via a convert struck at $58 after saying it wouldn't; production stuck near 3/month vs. a 6/month target, with launch (not manufacturing) the bottleneck and Blue Origin's failure tightening capacity; named skeptics (Kevin Mack, who wrote a 12,000-word exit note valuing it at ~3x revenue; Philip Lyle; Tim Farrar) still unconvinced; every bull data point this week came from shareholders talking their book.
  • Next catalyst: BB11 satellite launch, expected the first week of August (BB12/BB13 shipping behind it); Grain spectrum decision by end of November; any formal JLEO/Rakuten or T-Mobile announcement; Golden Dome award.

Rocket Lab (RKLB), PUNDIT coverage (Off-Nominal)

  • Bull: The Iridium acquisition instantly gives it a profitable, cash-generating constellation with government/PNT/defense exposure, the constellation it kept promising, without the multi-year build.
  • Bear: Owning a services business muddies the pure launch-and-hardware story ("why launch for anybody else?"); integration and price/terms unknown; Neutron still has to fly.
  • Next catalyst: Formal disclosure of Iridium deal terms; Neutron progress.

Iridium (IRDM), PUNDIT coverage (as RKLB's target)

  • Bull: Being acquired by Rocket Lab; already profitable with a defensible weather-hardy, GPS-alternative niche and the newly-consolidated Aireon aircraft-tracking business.
  • Bear: Deal terms undisclosed, a takeout price sets the ceiling either way.
  • Next catalyst: Deal filing.

SpaceX / Starlink (private, discussed as "SPCX"), INVESTOR coverage (The Investor's Podcast)

  • Bull: The hosts concede the operating business is genuinely impressive, 2025 connectivity operating margins ~39% (up from ~26%), Falcon 9 at ~$74M a launch, a launch-cost lead measured in orders of magnitude, and a record IPO haul the podcasts put at $85.7 billion vs. a $75 billion plan.
  • Bear: A $28.5 trillion total-market claim (≈23% of world GDP) they call "far too ambitious"; still losing money; heavy capital intensity ($19.7B of 2025 CapEx); a bolted-on, money-losing AI business (post-XAI merger) and key-man risk in Elon Musk.
  • Next catalyst: As a sentiment anchor for the group, every space stock this week was trading partly off SpaceX's shadow (see Read-throughs).

Read-throughs

  • Carrier partners (VZ, T, TMUS): The only carrier action this week ran through the AST story. Chris Sambar's move to T-Mobile was the bulls' headline; they also claimed T-Mobile's public tone toward Starlink "turned flat-out acrimonious recently," which, if true, is a small tell on how the carriers view SpaceX's ambitions. Verizon and AT&T appeared only as AST's existing backers and as the co-owners of the pooled 850 MHz spectrum next to Grain's band. No dedicated carrier episode this week.
  • Iridium (IRDM) / EchoStar (SATS): Iridium is suddenly central, as an acquisition, not a standalone story. EchoStar / Hughes was a quiet week, no podcast coverage.
  • Globalstar (GSAT) and the Apple SOS angle: quiet week on GSAT. Nothing in the trailing seven days of podcasts touched Globalstar or the Apple emergency-SOS relationship. Not a data point, just an absence.
  • Launch & components: The launch bottleneck was a recurring theme, Blue Origin's rocket failure tightening near-term capacity, AST expected to buy more Falcon 9 slots from SpaceX, and expectations (from the AST bulls) of multi-launch agreements with Mitsubishi (H3) and ULA; Blue Origin possibly back online in December. On the imaging side, the AST bulls noted BlackSky +2.9% on a government contract and Planet Labs −0.8%, offered as evidence the space basket is starting to trade on company news again, not just as one macro blob.
  • SpaceX private-market valuation as sentiment anchor: This is the read-through that touched everything. The AST bulls repeatedly blamed the recent space-stock malaise on SpaceX's IPO, "Starlink added $500 billion to its market cap from its IPO... 20 ASTSs", and worried aloud about selling pressure "when the next tranche of SpaceX stock is unlocked." The takeaway for a book: for now, the whole sector inhales and exhales with SpaceX's stock and its rising borrowing costs. That linkage (SpaceX credit spreads to AST's cost of capital) is why AST rushed its convert. When space names trade together, dispersion, good company news actually separating winners from losers, is the thing to watch for as a sign the regime is changing.

What changed vs. last week

This is a newly (re)started issue on the current cadence, so treat this week as the baseline rather than a delta against a prior note. The one clear directional shift the podcasts flagged: the space complex spent recent weeks de-rating on Iran/geopolitics and the gravitational pull of SpaceX's IPO, and this week showed the first hints of names trading on their own news again (BlackSky up on a contract, Planet down, AST's convert as a company-specific event). We'll track week-over-week changes to launch cadence guidance, the Grain/JLEO/Golden Dome decisions, and any move on the Rocket Lab–Iridium terms from here.