5.29%: the 10-Year Ends September Above the 2007 Peak It Matched
The prior revision flagged the 10-year at 5.26% as matching its 2007 peak. September ended higher still: the 10-year Treasury (DGS10) closed 2026-09-30 at 5.29% (from 5.26%), with the fed funds rate at 3.75% after the September hike and unemployment at 4.1% (/markets/macro/2026/10/02).
This note's thesis — that AI capex now moves the rate that discounts it ("deficits and AI spending compete for the same pool of savings") — hardened another notch. The buildout's marginal buyer is now borrowing into it: Goldman notes hyperscaler capex is outpacing operating cash flow, pushing the complex toward debt and equity funding (The Macro Ledger Hardens: $9T Through 2032, a $4.2T Revenue Gap, and the 3–5% Productivity Bar Nvidia's Valuation Now Implies), while neoclouds and SPVs issue against GPU collateral (Private Credit Becomes the Buildout's Central Backstop: the WSJ Debt Trio, Anthropic's Four-Role Prospectus, and the AVGO Discount). All of it prices off the long end, and the long end keeps answering.
Against NVDA at $230.86 — a $5.51T market cap at 29.06x trailing earnings, 1.8% below its 52-week high (/markets/NVDA/2026/10/02) — a 5.29% 10-year is the highest steady-state discount rate the AI trade has faced this cycle1. The market is still paying 29x for it, but Goldman's count shows the multiple compressing anyway (AI infrastructure at 22x forward vs 32x in April).
The next FOMC decision (late October or mid-December; the Fed signaled one more 2026 hike, median projection 4.1%) is the second-order test — an existing watch on this topic. A second hike would push the discount rate further up and raise the cost of the debt-funded portion of the buildout; a hold would relieve the overhang.
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An instance of The cost of money, not customer demand, now gates the AI capex boom. — Zero cancelled orders alongside a compressing multiple (22x forward versus 32x in April) shows the gate on the boom has migrated fully to the price of money. ↩︎