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SPCX · Forward model · Starlink · Bear case

What has to happen in Starlink

Model as of

This page changes Starlink inside the complete SPCX model. Every other vertical, corporate programme and valuation assumption stays in the selected portfolio case.

SPCX forward model
Horizon
Consolidated fair value $39.25 all other verticals held in this portfolio case
Final-quarter revenue $9.19B 30% of company revenue
Explicit segment contribution $29.59B EBITDA less segment capex, before corporate items

ARPU pressure from emerging markets and Kuiper, AI contracts slip or utilisation lags, Starship delays keep Space loss-making and constrain constellation growth. Capex stays extreme. Origin fails to pull repositories off GitHub and Cursor seats churn back to bundled Copilot as model quality converges, leaving a $60B acquisition earning editor money — the line ends 2031 below where Cursor is running today. The Model layer never gets going: Grok holds about 6% of a pool growing 3% a quarter, which is the share the argument for this line was supposed to make irrelevant.

Starlink

Basis quarter$4.29B
Final quarter$9.19B
Implied CAGR+16%
Final revenue mix30%

The whole dish-and-antenna business: consumer broadband, the better-priced enterprise, maritime, aviation and rail book, Starshield government work, and the light direct-to-cell messaging service partners resell today. Consumer ARPU falls as emerging markets mix in; the non-consumer book is what carries the segment.

Last four quarters
2025 Q3 $3.00B Estimated
2025 Q4 $3.25B Estimated
2026 Q1 $3.50B Estimated
2026 Q2 $4.29B Reported
Consumer broadbandEnterprise / maritime / aviation / railGovernment (Starshield)Direct-to-cell messaging (light service, via carriers)
Subscribers 12.0M 9.2% of a 130.0M addressable base 12.0M subscribers, as disclosed with the Q2 2026 print — under 10% of the addressable base.
Addressable subscribers 130.0M the S-curve ceiling Households without usable fixed broadband that can bear this ARPU — not population. See the notes.
Net adds 1.5M/qtr ramping toward 2.6M/qtr, throttled as the base approaches the TAM 1.5M a quarter today. Terminals and satellite capacity, not demand, are the binding constraint.
Net-add ceiling 2.6M/qtr what supply can deliver at full rate 2.6M a quarter once V3 raises capacity per launch. Adds ramp toward this; they do not compound freely.
ARPU $66.00/mo drifting −2.5% per quarter, floor $45.00 $66 a month, down from $85 a year earlier. The fall is mix, not discounting.
Non-subscriber revenue $1.91B/qtr growing +9.0% per quarter $1.91B a quarter of enterprise, maritime, aviation, rail and Starshield, including light direct-to-cell.
Starlink

Latest: $9.19B (2031Q2E)

Period Value
2025Q1 $2.40B
2025Q2 $2.75B
2025Q3 $3.00B
2025Q4 $3.25B
2026Q1 $3.50B
2026Q2 $4.29B
2026Q3E $4.54B
2026Q4E $4.79B
2027Q1E $5.04B
2027Q2E $5.28B
2027Q3E $5.51B
2027Q4E $5.74B
2028Q1E $5.95B
2028Q2E $6.17B
2028Q3E $6.38B
2028Q4E $6.58B
2029Q1E $6.79B
2029Q2E $6.99B
2029Q3E $7.20B
2029Q4E $7.40B
2030Q1E $7.62B
2030Q2E $7.90B
2030Q3E $8.21B
2030Q4E $8.53B
2031Q1E $8.85B
2031Q2E $9.19B

Assumptions & reasoning

  • Modelled bottom-up on subscribers x ARPU rather than a growth rate, because the two halves move in opposite directions: the base keeps compounding while price per user falls on mix. A single growth number would hide exactly the tension that decides this segment.
  • The non-subscriber book is not derived - it is backed out as segment revenue less subscribers x ARPU, which puts it at $1.91B a quarter, about 45% of the segment against the disclosed ~42% enterprise/government share. The residual absorbs any error in the ARPU split.
  • Margin glides 61% to 66% because constellation cost is largely fixed once launched, so each added subscriber and each enterprise contract drops through at high incremental margin. Capex intensity falls 34% to 22% as V3 satellites raise capacity per launch.
  • The load-bearing risk is ARPU, not subscribers. Held flat at $66 instead of drifting down, this segment alone is worth materially more; at the $45 floor it is worth much less. Kuiper is the reason the floor might bind sooner than modelled.
  • Today's direct-to-cell service belongs here, not in Starlink Mobile. It runs on ~650 first-generation satellites at roughly 2-4 Mbps - texting, location and light apps in dead zones - and it is sold as a bolt-on by carriers, so it is already inside this segment's non-subscriber book. About 22M monthly actives as of the August 2026 all-hands, up from ~10M earlier in the year.
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