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In-House EverythingWide moat

SpaceX (SPCX) — moat facet

A company whose whole identity is making its own parts paid $42.5 billion in its own shares for the software layer it wanted — and $16,444 million of the quarter's capital went to data centres rather than to rockets.

Where the old aerospace world was a general contractor managing suppliers, SpaceX is a factory that makes its own parts. It builds the engines, the airframes, the avionics, the satellites and the user terminals, and it writes the software that ties them together. That lets it optimise the engine for the airframe for the mission as one system, and change any part of it without renegotiating a contract. The approach is defensible because it is unpleasant: it demands huge up-front capital and a willingness to do hard things yourself.

Capital expenditure by segment, latest quarter ($M)SI$16,444Space$1,606Connectivity$1,543Q3 2026 results release, segment table; group total $19,593m
The SI segment took 83.9% of everything spent on building things; the rockets and the constellation shared what was left.

This quarter put an asterisk on the slogan. On 14 August SpaceX completed its acquisition of Cursor, whose legal name is Anysphere, at an implied equity value of $60 billion12. "The GAAP purchase consideration was $42.5 billion"3, settled in 389,289,254 Class A shares4 — about 2.88% of the company5. The filing is explicit about why: the deal advances the strategy "to vertically integrate compute infrastructure, SI models, and applications"6. Read plainly, that is vertical integration by cheque book. SpaceX has always built the hardware. It has just bought the application layer.

The capital figures say the same thing in a different language. Of $19,593 million spent in the quarter, the SI segment took $16,444 million, against $1,606 million for Space and $1,543 million for Connectivity7 — 83.9% of the total8. Over nine months the group spent $48,069 million9. The business that made its name by refusing to outsource a turbopump is now mostly in the business of pouring concrete for computers.

None of that weakens the case for a wide rating. Owning the stack still removes the supplier margin and the supplier delay, and a company that can direct sixteen billion dollars a quarter at a new field without asking permission has a kind of freedom no contractor enjoys. What it does change is the question an owner should ask. The measure is the share of capital going to businesses SpaceX did not build. While the acquired layer earns its keep, buying was faster than building. If it does not, $36,614 million of fresh goodwill10 is what in-house everything cost this time.

Moat trajectory: Holding steady

Stable, with its definition stretched. SpaceX still builds the engines, satellites and terminals and still answers to no supplier on schedule, which is where the margin and the speed come from. But the newest layer of the stack was acquired rather than engineered, and 83.9% of the capital spending in the quarter went to the SI segment, so in-house now mostly means data centres.

The number that tests this moat
Moat Explorer calc
Share of capital spending going to the SI segment, latest quarter
83.9% in Q3 2026, $16,444m of $19,593m

This is where in-house is actually being built now. The share falling back towards the aerospace businesses would mean the data-centre build is finishing; staying above four-fifths means the integration story is really a compute story.

How it's calculated: SI segment capital expenditure divided by the group total: 16,444 / 19,593 for the September 2026 quarter.
Source: SpaceX Q3 2026 results release (Form 8-K exhibit 99.1, 20 October 2026) — segment table: revenue, income from operations, Adjusted EBITDA and capital expenditure by segment ↗
⚠ Threats to the moat
⚠ THREAT 01
Owning It All Means Carrying It All
Vertical integration concentrates every risk under one roof.
References
  1. ReportedOn 14 August SpaceX completed its acquisition of Cursor, whose legal name is Anysphere, at an implied equity value of $60 billion.
    SpaceX Q3 2026 results release (Form 8-K exhibit 99.1, 20 October 2026) — Other Key Business Developments: the Cursor merger and the 800 MHz spectrum agreement — Q3 2026 — quarter ended 30 September 2026 · publ. 20 October 2026 · source ↗
  2. ReportedOn 14 August SpaceX completed its acquisition of Cursor, whose legal name is Anysphere, at an implied equity value of $60 billion.
    SpaceX, Form 8-K Item 2.01 — completion of the merger with Anysphere, Inc. (Cursor): 389,289,254 Class A shares at an implied $60.0bn equity value — Merger effective 14 August 2026 · publ. Filed 14 August 2026 · source ↗
  3. Reported"The GAAP purchase consideration was $42.5 billion", settled in 389,289,254 Class A shares — about 2.88% of the company.
    SpaceX Q3 2026 results release (Form 8-K exhibit 99.1, 20 October 2026) — Other Key Business Developments: the Cursor merger and the 800 MHz spectrum agreement — Q3 2026 — quarter ended 30 September 2026 · publ. 20 October 2026 · source ↗
  4. Reported"The GAAP purchase consideration was $42.5 billion", settled in 389,289,254 Class A shares — about 2.88% of the company.
    SpaceX, Form 8-K Item 2.01 — completion of the merger with Anysphere, Inc. (Cursor): 389,289,254 Class A shares at an implied $60.0bn equity value — Merger effective 14 August 2026 · publ. Filed 14 August 2026 · source ↗
  5. Moat Explorer calc"The GAAP purchase consideration was $42.5 billion", settled in 389,289,254 Class A shares — about 2.88% of the company.
    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.
  6. ReportedThe filing is explicit about why: the deal advances the strategy "to vertically integrate compute infrastructure, SI models, and applications".
    SpaceX Q3 2026 results release (Form 8-K exhibit 99.1, 20 October 2026) — Other Key Business Developments: the Cursor merger and the 800 MHz spectrum agreement — Q3 2026 — quarter ended 30 September 2026 · publ. 20 October 2026 · source ↗
  7. ReportedOf $19,593 million spent in the quarter, the SI segment took $16,444 million, against $1,606 million for Space and $1,543 million for Connectivity — 83.9% of the total.
    SpaceX Q3 2026 results release (Form 8-K exhibit 99.1, 20 October 2026) — segment table: revenue, income from operations, Adjusted EBITDA and capital expenditure by segment — Q3 2026 — quarter ended 30 September 2026 · publ. 20 October 2026 · source ↗
  8. Moat Explorer calcOf $19,593 million spent in the quarter, the SI segment took $16,444 million, against $1,606 million for Space and $1,543 million for Connectivity — 83.9% of the total.
    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.
  9. ReportedOver nine months the group spent $48,069 million.
    SpaceX Q3 2026 results release (Form 8-K exhibit 99.1, 20 October 2026) — segment table: revenue, income from operations, Adjusted EBITDA and capital expenditure by segment — Q3 2026 — quarter ended 30 September 2026 · publ. 20 October 2026 · source ↗
  10. Moat Explorer calcIf it does not, $36,614 million of fresh goodwill is what in-house everything cost this time.
    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