Nuclear traded defensively flat against Friday's risk-off tape — X-Energy edged +2.2% while domestic conversion play Solstice slipped 4.9% with no fresh news.

X-Energy (XE) was the basket's modest leader, up 2.2% to $18.88, a quiet gain with no discrete same-day catalyst on a broadly risk-off Friday. The Amazon-backed developer sits across the fuel-fabrication chokepoint: its TRISO-X subsidiary holds the first commercial NRC Category II fuel-fabrication license (granted February 2026) for the TF3 plant in Oak Ridge, ~56% through vertical construction with first operations guided to 1H2028. Recent structural items — a 10-year graphite supply agreement, an IHI MoU for nuclear-grade components, and completion of the NRC environmental assessment for its Seadrift, Texas industrial reactor — keep XE the most vertically integrated SMR-fuel story in the map. Friday's move was sentiment, not news; the stock simply held green while higher-beta names slid.

Solstice Advanced Materials (SOLS) was the worst quotable name, down 4.9% to $82.69, again with no company-specific catalyst — a give-back in a risk-off tape rather than a thesis break. Solstice, spun from Honeywell onto the Nasdaq in October 2025, operates Metropolis Works, the only domestic US UF6 conversion plant, marketed through the ConverDyn JV with General Atomics. It maps to the conversion-deconversion chokepoint — the most concentrated bottleneck in the Western fuel cycle, where the US has one operating plant against a market long dominated by Russian and overseas capacity. The pullback is noise against a structurally tight conversion market, but it underscores how thinly the domestic fuel-cycle theme trades on quiet days.

The session was muted and mixed rather than directional. Uranium miners leaned slightly green — Uranium Energy (UEC +2.0%), Energy Fuels (UUUU +1.4%), Cameco (CCJ +0.9%), Denison (DNN +1.0%) — while the reactor and components names softened with the broader risk-off: Oklo (OKLO −2.0%), Nano Nuclear (NNE −3.8%), BWX Technologies (BWXT −3.4%), Centrus (LEU −2.9%) and GE Vernova (GEV −3.7%). The restart-utility cohort eased as risk appetite shifted — Constellation (CEG −1.7%), Vistra (VST −2.6%), Talen (TLN −3.0%) — even as NuScale (SMR +0.3%) held. Japan Steel Works' thin US ADR printed sharply lower, but its Tokyo line fell only ~2.8%, a reminder to read the home session, not the ADR.

The calendar thickens into July. The DOE Reactor Pilot Program's target of three-plus advanced-reactor criticalities carries a July 4 marker — the policy catalyst for the SMR-platforms chokepoint. Earnings then arrive in sequence: NextEra (July 29), Cameco (July 31, with Westinghouse equity color), BWXT (Aug 3), Centrus (Aug 4) and X-Energy's first full quarter as a public company (Aug 6). Solstice reports Q2 on Sept 2, and the World Nuclear Symposium (London, Sept 9–11) frames the back half. The conversion and enrichment chokepoints remain the cleanest reads on Western fuel-cycle reshoring.