Uranium ETF Sinks 11% as the AI-Nuclear Trade Hits a Valuation Wall

Uranium ETF Sinks 11% as the AI-Nuclear Trade Hits a Valuation Wall The Global X Uranium ETF fell 11% on Friday (2026-06-05), a reminder the bet on nuclear powering AI data centres is priced for perfection it hasn't yet earned. The Global X Uranium ETF (URA) fell 11.14% to $45.31 on Friday (2026-06-05), one of the sharpest single-day drops the fund has logged during the nuclear revival trade⁷. Coal's main ETF proxy fell 7.22% in the same session⁷. For a theme built on the conviction that atomic power is the only way to feed AI's electricity appetite, that is a hard reset⁷. That matters because URA has become the liquid front end of a crowded bet. The fund holds $6.86 billion in assets and offers the deepest liquidity and purest uranium-price exposure of the nuclear ETF complex, which makes its tape a fair read on how much enthusiasm sits in the price⁷. When the most-owned vehicle drops double digits in a session, the marginal buyer has stepped back⁷. The demand story underneath has not changed, and that is what makes the move worth watching. US power generation drawn by data centres is projected to climb from roughly 5% of the total to about 15% over five years, a step change on a grid that has barely grown since 2000⁷. Capital has rotated into anything that can supply that load, with nuclear and renewable baseload pitched as the cleanest fixes¹. The proof points are real. Microsoft signed a 20-year, 835 MW power purchase agreement with Constellation Energy in September 2024 to restart Three Mile Island Unit 1, a $1.6 billion project now targeting a 2027 startup⁷. A 1 GW reactor runs at capacity factors north of 90% on a fraction of the land an equivalent solar build needs, exactly the density hyperscalers want⁷. Washington wants to quadruple nuclear capacity from about 100 GW in 2024 to 400 GW by 2050². But the economics still do not close. Barclays notes that both conventional nuclear and small modular reactor costs exceed the market price for power⁴. Reactors get funded on twenty-year contracts and government ambition, not on current spreads, and a uranium ETF priced on that ambition is exposed when sentiment turns⁴. The vehicles that own the trade carry their own quirks. NUKZ has returned about 52% over the past year and roughly 11% year to date through late May (2026-05-28), with shares near $71 and an expense ratio of 0.85% on roughly $841 million in assets⁷. Its top weights have included Talen Energy near 3% and Dominion Energy near 3%, alongside Cameco, GE Vernova and Constellation⁷. Asia is the part of the thesis least priced into the US names. Japan's data centres will consume as much electricity as 15 million to 18 million households by 2034, driving 60% of the country's power demand growth as hyperscalers invest $28 billion after Tokyo named Oracle, Google and Microsoft as official cloud providers⁵. That is a baseload problem in a country that imports roughly 90% of its crude and has leaned back on coal under stress³. Technology is being thrown at the cost wall. Idaho National Laboratory and NVIDIA launched a project called Prometheus that uses AI to speed reactor development, aiming to cut build times by up to 50% and operating costs by a similar margin⁶. SMR startups have raised more than the field's earlier rounds, with one estimate putting the addressable market near $1 trillion⁴. None of that lowers the cost of a reactor delivering power this year⁴. The adjacent equities show the same hunger and the same fragility. Fluence Energy closed at $24.16 on May 8, 2026, up 98.2% in a single week after disclosing master supply agreements with two hyperscalers and a record $5.6 billion backlog, yet the stock is still down roughly 39% year to date¹. Its first quarter of 2026 delivered positive adjusted EBITDA of $2.0 million, a fourth consecutive quarter in the black, with non-GAAP gross margin at 52%¹. Friday's (2026-06-05) drop does not break the thesis⁷. It prices the gap between a grid that needs the power and reactors that cannot yet sell it economically⁴. Watch whether URA's slide draws fresh buyers near $45 or whether the AI-nuclear trade keeps de-rating toward the cost reality Barclays flagged^7,4.