The nuclear-power revival trade led again — reactor forgings and merchant generators rose on AI-electricity demand as engineering names lagged.

On a session where a hot August jobs report (+162,000 payrolls versus +53,000 expected) lifted yields and nicked the broad indices (S&P 500 −0.38%), the nuclear basket's leader was the tightest physical chokepoint in the entire vertical: Japan Steel Works. Its US ADR (JPSWY) rose 8.8% to $24.59, tracking the Tokyo line higher with the nuclear-power revival trade. JSW is the near-monopoly on ultra-large single-piece forgings — the reactor pressure vessels only a handful of presses on earth can produce in one piece — so it is the supply constraint that sits upstream of every large new build. There was no company-specific catalyst on the day; the move was the thinly traded ADR catching a firm complex, and it should be read as JSW's last-session move rather than a US-tape event.

The laggard was Fluor (FLR), down 2.3% to $56.16. Fluor holds the engineering-and-construction end of the chokepoint — the EPC capacity and SMR exposure (via its NuScale stake) needed to actually pour a reactor — and on a rate-up, risk-off day the build-out names gave back while the generators led.

That generation tier carried the tape, priced off AI-driven electricity demand. Constellation Energy (CEG) rose 4.9% to $298.96, Talen (TLN) 3.8% to $317.00, and Vistra (VST) 3.5% to $149.30 — the merchant fleets whose existing baseload is the scarce, dispatchable power the data-center buildout is bidding for. Oklo (OKLO) added 3.6% to $41.27 on the advanced-fast-reactor chokepoint, and Solstice Advanced Materials (SOLS) 3.8% to $63.73 on specialty materials. The fuel-cycle and naval names were softer: BWX Technologies (BWXT) −1.7% to $157.59 on reactor components and HALEU, and Huntington Ingalls (HII) −1.7% to $285.93 on naval propulsion.

The calendar is unusually front-loaded. Solstice reported Q2 on Sept 2; the World Nuclear Symposium convenes in London Sept 9–11, the year's key gathering on fuel supply and new-build financing; and the NRC's final Environmental Impact Statement for GLE's Paducah laser-enrichment facility is expected in the second half of 2026 — a milestone on the domestic enrichment chokepoint that Russian-LEU import limits are forcing. Further out, Constellation's Crane Clean Energy Center restart awaits a final NRC decision expected in 2027, and Bulgaria's Kozloduy Units 7–8 AP1000 final investment decision is targeted for the second half of this year — each a marker on whether the revival converts from re-rating into steel in the ground.