The uranium fuel-cycle chokepoint ripped higher on AI-baseload demand, with Uranium Energy up 14.4% and Cameco to a record, while rate-pressured nuclear utilities lagged.

The fuel-supply chokepoint was the story of the session. Uranium Energy Corp closed +14.4% at $12.76 leading a sector-wide surge, with the uranium miners' ETF (URNM) +7.7% to $58.19 and the underlying spot price around $88.85/lb. The driver is structural and now well-rehearsed: hyperscalers are contracting for reliable, carbon-free baseload to power AI infrastructure, and the bottleneck is pounds of U3O8 and the conversion and enrichment capacity behind them. The move was broad — Cameco +7.2% to $102.51, an all-time high; Denison Mines +11.5% to $3.50; NexGen +6.3% to $10.86 — and it reached down the fuel cycle to enrichment, where Centrus Energy rose +5.8% to $186.26, the domestic HALEU name that gates advanced-reactor fuel.

The laggards sat in the generation-and-utility layer, not the fuel cycle. Public Service Enterprise Group fell −2.7% to $72.61 and Vistra −2.0% to $136.21, the rate-sensitive nuclear-utility and independent-power names pressured as 30-year Treasury yields pushed toward multi-decade highs. The instrumentation name Mirion also slipped −2.7% to $14.82. The divergence is the tell: capital chased the scarce upstream commodity — where supply is genuinely constrained — over the regulated downstream operators, whose valuations move with the discount rate.

The chokepoint framing rewards precision here. The uranium-supply and conversion-deconversion straits led because there is no fast substitute for mined and converted feedstock, and the enrichment-and-HALEU layer — Centrus, plus the coming laser-enrichment capacity — is the harder bottleneck still, the one that determines whether the SMR and restart pipeline actually gets fueled. Friday's tape paid up for the parts of the cycle that cannot be conjured on demand and marked down the parts whose economics hinge on borrowing costs.

The calendar builds through the fall. The World Nuclear Symposium convenes in London September 9–11, the NRC's final Environmental Impact Statement for GLE's Paducah laser-enrichment facility is expected around September 30, and BWXT reports Q3 on November 2. Structurally, Westinghouse/US-government definitive agreements are targeted for 2H 2026, the Xe-100 construction-permit review hits an 18-month NRC milestone in December, and the termination of Russian LEU import waivers in 2028 remains the long-dated forcing function for domestic enrichment. Today's leadership — mined supply and enrichment — is exactly the strait those catalysts tighten.