---
title: "“Virtually nothing matters more to markets at present than the AI buildout. It’s such a sudden and massive stimulus for the US that it has shifted macroeconomic data. \""
description: "Columbia Business School’s Stijn Van Nieuwerburgh argues that without it, the US would be in recession. He estimates AI infrastructure investment at roughly 2.8% of GDP, larger than the railroad boom, and it’s projected to keep rising\n\nSource: \nAnnmarie Hordern\nBloomberg"
---

[Syz The Moment](https://blog.syzgroup.com/syz-the-moment)

# [“Virtually nothing matters more to markets at present than the AI buildout. It’s such a sudden and massive stimulus for the US that it has shifted macroeconomic data. "](https://blog.syzgroup.com/syz-the-moment/virtually-nothing-matters-more-to-markets-at-present-than-the-ai-buildout.-its-such-a-sudden-and-massive-stimulus-for-the-us-that-it-has-shifted-m-1786547229996)

 Written by [Charles-Henry Monchau, CFA, CMT, CAIA](https://blog.syzgroup.com/syz-the-moment/author/charles-henry-monchau) | Aug 12, 2026, 3:08:34 PM

[View full post](https://blog.syzgroup.com/syz-the-moment/virtually-nothing-matters-more-to-markets-at-present-than-the-ai-buildout.-its-such-a-sudden-and-massive-stimulus-for-the-us-that-it-has-shifted-m-1786547229996)

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