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Monday, September 28, 2026

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The $3T “hidden AI debt” number is not the story WSJ just put a headline on the shadow capex we’ve been tracking for a while. Purchase commitments + leases that have not started. Most of it never hits the balance sheet. The $3T is real. The interpretation is not. Add the explicit debt-like items on the books of $GOOGL $MSFT $META $AMZN and you get ~1.69x. Widen the definition to implicit / off-book instruments and it can balloon to 8.36x — approaching that $3T figure. That is the chart. It is not the economics. 1. Most of this is contract value, not a hard legal obligation to pay. A lot of it is pay-as-you-go. The commitments they actually have to fund already sit on the balance sheet. 2. The implicit load is shared. It is spread across financial players — private credit and equity — who are underwriting the build. Their IRRs are not insane. Current ROIC on this spend is still high. This is not a bubble from here. 3. AI ROIC can compress later. I would not be surprised. Near-term it is more likely to stay elevated or even rise. Compute is still short. Efficiency gains are raising, not lowering, the value of each incremental GPU-hour. 4. What the hyperscalers are actually doing: paying a bit more, accepting a slightly lower margin, and sharing a slice of the economics with investors who want the risk. That is risk offload, not hidden leverage. The cleaner setup is still the player that can keep building more capacity internally without leaning as hard on this structure. SpaceX is the extreme version of that. It also means more profit pass-through to the specialized GPU clouds sitting in the middle of this: $IREN $NBIS $CRWV and others. The $3T is a real number. Treating it as imminent balance-sheet stress is the wrong read. Pictures below are snapshots from our AI Bubble Barometer.

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On’s Premium Playbook

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ONON $11B
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Hindsight Capital

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TDG $60BTPL $23B
Rebound Capital 6 clicks
CBOE · long

Cboe Global Markets INC

Cboe Global Markets trades near $232, with a roughly $24.3 billion market cap, net cash and a 16-17x forward P/E.

CBOE $29B
Value Investors Club 3 clicks

The Brookfield Moat Masterclass

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BN $82B
Brad Thomas

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RDDT $28B
Hated Moats 7 clicks

The Agents Revolt

Meta’s Muse reached 2.8 million downloads in two weeks, using AI agents to automate insurance shopping and erode customer inertia that…

META $1.8T
Net Interest 6 clicks

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