Lighthouse Macro

Lighthouse Macro

AI Is Fragmenting the Cycle

The Beam - April 30, 2026

Bob Sheehan, CFA, CMT's avatar
Bob Sheehan, CFA, CMT
Apr 30, 2026
∙ Paid

The Setup

This morning’s GDP advance came in at 2.0% annualized, a real upside surprise against GDPNow’s 1.2% nowcast and a meaningful reacceleration from Q4’s 0.5%. The internals tell the story the headline buries. Investment accelerated. Consumer spending decelerated. The cycle is not lifting. It is splitting.

Inside investment, the split sharpens further. The BEA flagged increases in equipment, intellectual property products, and private inventory, partly offset by decreases in residential and nonresidential structures. That decomposition is itself the AI capex fingerprint. Equipment and IP products are where information processing hardware and software live in the national accounts. Structures are everything else the investment economy traditionally builds. One side accelerated. The other rolled.

The AI build is the splitter. Most coverage runs through model releases, GPU backlogs, and earnings-call superlatives, all of which are downstream. Upstream, AI is a capital cycle, and capital cycles show up in standard macro data: investment shares, industrial production, relative prices, inventories, and the credit and liquidity that underwrite duration. The macro question is whether the shock is large enough to matter beyond tech.

Our read this morning is that it already does. Just not evenly.

The Data

Five charts carry the argument.

AI capex impulse
Figure 1. Intellectual property products as a share of GDP, 1985–2025.
User's avatar

Continue reading this post for free, courtesy of Bob Sheehan, CFA, CMT.

Or purchase a paid subscription.
© 2026 Lighthouse Macro, LLC · Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture