A HALEU supply deal split the enrichment chokepoint two ways — X-Energy surged 9% on the offtake while Centrus, the only US-licensed enricher, sold the news despite winning the contract and raising guidance.

The session's story was a single contract that sits squarely on this vertical's core chokepoint. On August 6, X-Energy and Centrus signed a definitive LEU and HALEU supply agreement to fuel X-Energy's Xe-100 small modular reactors, with deliveries beginning in 2030 and, at full execution, covering a portion of the initial fuel for X-Energy's ~11.5 GW commercial pipeline. X-Energy rose +9.3% to $20.82 — the buyer securing scarce enriched fuel is worth more than the risk it takes on, and the market said so. The HALEU (high-assay low-enriched uranium, 5–20% U-235) will flow to X-Energy's TRISO-X subsidiary in Oak Ridge for coated-particle fuel fabrication, tying the deal to the fuel-fabrication choke as well as enrichment.

Centrus, the counterparty and the only US-licensed HALEU enricher, fell −5.1% to $178.03 — a sell-the-news reaction that ran against the fundamentals. Its Q2 (reported August 5) showed revenue up 14% to $176.1M, and management raised full-year revenue guidance to $450–500M while flagging capital deployment of $350–500M to build out domestic centrifuge capacity. That last figure is the tension: the X-Energy agreement includes prepayments specifically to fund that build without dilution or new debt, but GAAP net income still fell 42% to $16.8M as the industrial ramp weighs on near-term earnings. The enrichment chokepoint is real and Centrus owns it, but the market is discounting the years of capex it takes to widen it before the 2030 deliveries land.

The rest of the fuel-cycle basket leaned green. ATI rose +8.9% to $223.43 on its aerospace-alloys beat, a read-through to reactor-grade specialty metals; Sprott Physical Uranium gained +5.1% and Energy Fuels +3.7% at the mining-and-conversion choke, with NexGen +1.9%. The laggards were on the engineering-and-components side: Curtiss-Wright −4.6% to $714.04, Fluor −3.3%, Oklo −1.9% and Mirion −2.5% as the reactor-builder names cooled after a strong stretch.

The near-term calendar keeps the fuel-cycle names in focus. Oklo reports Q2 on August 10, NuScale on August 12, and X-Energy's own Q2 lands August 13 — the first print since the Centrus deal. Further out, the World Nuclear Symposium runs September 9–11 in London, the NRC's final Environmental Impact Statement for GLE's Paducah laser-enrichment facility is expected by quarter-end, and the termination of Russian LEU import waivers continues to tighten the Western enrichment supply the whole HALEU thesis rests on.