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Convequity’s AI Bubble Barometer (ABBX) — Week of 2 October 2026 Our weekly framework tracks valuations, returns, capex, financing risk and infrastructure capacity across hyperscalers, neoclouds and model labs. Friday 2 Oct 2026 close (US ET): - Price drove the move: EV rose about $44B to about $14,114B. Invested capital (IC) was unchanged at $2,338B. - EV/IC: 6.04x, up 0.02x from 6.02x on 25 Sep. - All-in EV/IC: 6.76x. 1. Returns. Our paired, annualized forward ROIC (which is not trailing accounting ROIC) for Q2 2026 is 30.0%, against an AI WACC of 9.8%: 3.07x ROIC/WACC and a spread of +20.3 percentage points. 2. Capex. Latest-quarter cash capex is $228.7B. 3. Debt. Borrowings are $595B. All-in exposure is $3,624B, or 6.10x borrowings, adding purchase obligations, construction commitments and uncommenced leases on top of borrowings and leases. 4. Gigawatts. Current capacity is 45.7 GW, with 153.4 GW planned. $MSFT versus $GOOGL: MSFT’s all-in exposure is about 17x borrowings, and it is renting more: external capacity is about 12% now and 21% of planned capacity. GOOGL’s all-in exposure is 10.2x borrowings, while its external capacity share remains small at about 4% now. We see a price-led rise in valuation, with modeled forward returns still well above the cost of capital. Future spending commitments are much larger than borrowings alone suggest, and the reliance on rented capacity differs across companies.

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