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⚠ The Number Nobody Else PublishesModerate threat

SpaceX (SPCX) — threat to the moat

The only launch cost SpaceX discloses was spent on twelve of the quarter's thirty-five missions; the other twenty-three were priced by nobody.

The disclosed cost of launch covers twelve of the quarter's thirty-five missions.

Space segment cost of revenue ($M)$1,6692023$1,5412024$1,3522025SpaceX IPO prospectus (Form 424B4), segment note and key business metrics
The only launch cost SpaceX discloses covers outside customers' revenue: it fell 19% in two years while mass to orbit rose 83%.

In the three months to September SpaceX flew 35 flights: 23 for itself and 12 for paying customers1. The $435 million of Space cost of revenue is the cost of serving the second group2. The first group's costs are spread across a constellation the same company owns, capitalised into satellites, or absorbed in a development budget. So for roughly two-thirds of the fleet's work there is no price that two parties agreed on — there is an internal transfer, and the transfer price is not published.

The mix moved this quarter, which makes the gap wider rather than narrower. Internal launches fell to 23 from 29 and customer launches to 12 from 153, so the sample an outsider can reason from got smaller in absolute terms while remaining the smaller share.

There is a second gap behind the first. What SpaceX publishes is volume — 476 tons on 35 launches — and cost of revenue, which is an income-statement line, not a unit cost4. Nothing in the release says what refurbishing a booster costs, how many flights one survives, or what Flight 14 cost to fly. Anyone paying a premium for a cost lead is paying for an estimate of it.

None of this makes the advantage imaginary. Cost of revenue fell while tonnage per flight rose56, and a company with a cost problem does not usually produce that pair. It makes the advantage unverifiable at the precision the share price implies.

What would close the gap is a disclosed cost per launch or per kilogram, which no filing has ever carried. Until one does, the honest test is the pair of lines that sit next to each other in the table: cost of revenue, and the customer launches it was spent on. If the first rises while the second falls, the reuse story is weakening in the only place an outsider can see it.

References
  1. ReportedIn the three months to September SpaceX flew 35 flights: 23 for itself and 12 for paying customers.
    SpaceX Q3 2026 results release (Form 8-K exhibit 99.1, 20 October 2026) — Space segment operating and financial data and business highlights — Q3 2026 — quarter ended 30 September 2026 · publ. 20 October 2026 · source ↗
  2. ReportedThe $435 million of Space cost of revenue is the cost of serving the second group.
    SpaceX Q3 2026 results release (Form 8-K exhibit 99.1, 20 October 2026) — Space segment operating and financial data and business highlights — Q3 2026 — quarter ended 30 September 2026 · publ. 20 October 2026 · source ↗
  3. ReportedInternal launches fell to 23 from 29 and customer launches to 12 from 15, so the sample an outsider can reason from got smaller in absolute terms while remaining the smaller share.
    SpaceX Q3 2026 results release (Form 8-K exhibit 99.1, 20 October 2026) — Space segment operating and financial data and business highlights — Q3 2026 — quarter ended 30 September 2026 · publ. 20 October 2026 · source ↗
  4. ReportedWhat SpaceX publishes is volume — 476 tons on 35 launches — and cost of revenue, which is an income-statement line, not a unit cost.
    SpaceX Q3 2026 results release (Form 8-K exhibit 99.1, 20 October 2026) — Space segment operating and financial data and business highlights — Q3 2026 — quarter ended 30 September 2026 · publ. 20 October 2026 · source ↗
  5. ReportedCost of revenue fell while tonnage per flight rose, and a company with a cost problem does not usually produce that pair.
    SpaceX Q3 2026 results release (Form 8-K exhibit 99.1, 20 October 2026) — Space segment operating and financial data and business highlights — Q3 2026 — quarter ended 30 September 2026 · publ. 20 October 2026 · source ↗
  6. Moat Explorer calcCost of revenue fell while tonnage per flight rose, and a company with a cost problem does not usually produce that pair.
    Moat Explorer calculation from SpaceX's Q3 2026 results release and market data — Q3 revenue mix Space $1,767M / Connectivity $5,248M / SI $7,560M of $14,575M = 12.1% / 36.0% / 51.9% (Q2: $962M / $4,291M / $2,561M of $7,814M = 12.3% / 54.9% / 32.8%); sequential revenue growth 14,575 / 7,814 - 1 = 86.5%; nine-month growth 27,083 / 13,714 - 1 = 97.5%; Q4 2025 revenue 18,674 - 13,714 = $4,960M and trailing-twelve-month revenue 4,960 + 27,083 = $32,043M; Q4 2025 net (4,937) - (2,590) = $(2,347)M and trailing net (2,347) + (413) = $(2,760)M; Q4 2025 income from operations (2,589) - (1,216) = $(1,373)M and trailing (1,373) + 705 = $(668)M; market capitalisation 13,579m shares x $147.79 = $2,007bn and price to trailing sales 2,007 / 32,043 = 62.6x; Q3 operating margin 2,791 / 14,575 = 19.1% and Adjusted EBITDA margin 8,809 / 14,575 = 60.4%; non-operating contribution to net income 4,404 - 2,791 = $1,613M (interest income 873 + other income 1,025 - interest expense 675 + tax benefit 390); capex as a share of revenue 19,593 / 14,575 = 134.4% and 48,069 / 27,083 = 177.5%; nine-month free cash flow 13,097 - 48,069 = $(34,972)M; SI share of capex 16,444 / 19,593 = 83.9% and 39,995 / 48,069 = 83.2%; Connectivity share of group income from operations 2,367 / 2,791 = 84.8%; Space research and development growth 1,225 / 849 - 1 = 44.3%; Connectivity operating margin 2,367 / 5,248 = 45.1% (Q2 1,656 / 4,291 = 38.6%; Q3 2025 1,190 / 3,097 = 38.4%); enterprise and government share 2,127 / 5,248 = 40.5% (Q2 42.1%, Q3 2025 35.9%); mass to orbit per launch 476 / 35 = 13.6 t (Q2 485 / 38 = 12.8 t; Q3 2025 525 / 44 = 11.9 t); days between launches 92 / 35 = 2.6; advertising share of SI 538 / 7,560 = 7.1% (Q3 2025 454 / 813 = 55.8%) and nine-month advertising 1,248 / 1,323 - 1 = -5.7%; SI income from operations before the Cursor charge 431 + 1,217 = $1,648M and SI operating margin 431 / 7,560 = 5.7%; cash and marketable securities 51,294 + 38,561 = $89,855M; total debt 2,698 + 36,146 = $38,844M of which related party 2,181 + 10,716 = $12,897M; net cash 89,855 - 38,844 = $51,011M; deferred revenue 10,784 + 6,736 = $17,520M against 6,111 + 6,005 = $12,116M, up 44.6%; goodwill increase 48,423 - 11,809 = $36,614M and goodwill plus intangibles 54,777 / 254,045 = 21.6% of assets; property, plant and equipment 89,483 / 42,602 - 1 = 110.0%; Cursor shares 391.0m of 13,579m = 2.88% at an implied 60,000 / 389.289 = $154.13 a share; Cursor revenue 608 / 47 x 365 = $4,722M annualised, so 60,000 / 4,722 = 12.7x; diluted shares 12,475 / 2,941 - 1 = 324%; the September quarter was 14,575 / 32,043 = 45.5% of trailing revenue — Q3 2026 — quarter ended 30 September 2026 · publ. 20 October 2026 · source ↗
    Method: The operands and the arithmetic are set out in full in the source line.
Sources
Generated October 21, 2026