Hyperscaler capex and the buildout

Plain English. Capital expenditure by the biggest cloud operators — Microsoft, Amazon, Alphabet, Meta and their peers — on data centres, accelerators and power. This is "the buildout": the physical construction programme underneath the AI economy.

Why it moves money. It is plausibly the largest capital flow in the economy: roughly US$735 billion of commitments in 2026, with analyst consensus near US$1.1 trillion for next year (projected). Nearly every AI revenue line downstream — chips, memory, construction, power — is a redistribution of this spending, so its durability is the sector's master variable. The character of the funding is changing: three megacaps went free-cash-flow negative in a single quarter (measured), and the next phase is expected to be financed by Wall Street debt rather than corporate balance sheets — which converts an optional programme funded from surplus into a leveraged one with creditors.

What to watch. Capex guidance revisions each earnings season; operating-cash-flow coverage of capex; and the migration of financing into debt, securitisations and SPVs — who bears the risk if utilisation disappoints.

From the signals. $735B this year, $1.1T next: the analyst-class capex regime. Three megacaps went free-cash-flow negative in the same quarter. The buildout's next lender is Wall Street, not the corporate balance sheet.