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Oklo Stock Higher After Plutonium-Fuel Update
31 May 2026
2 mins read

Oklo Stock Higher After Plutonium-Fuel Update

NEW YORK, May 30, 2026, 18:04 EDT

Oklo Inc. starts the week holding onto gains above where it traded before the recent catalyst. Shares cooled off on Friday, easing back after the nuclear trade rally.

OKLO settled at $66.88 on Friday, off 1.78%. The stock traded from $64.28 to $70.01 with 27.67 million shares changing hands. For the shortened week after Memorial Day, OKLO gained about 1.5%. The S&P 500 and Nasdaq both ended up a bit higher Friday.

Why it matters now: Investors want to know if Oklo’s fuel plan is turning real, or if it’s just another clean-energy name connected to data center stories. The next question is if the shares stay up when the market opens Monday.

Oklo shares got a push Tuesday after the company said the U.S. Department of Energy picked it for advanced talks under the Surplus Plutonium Utilization Program. The initiative could see some surplus plutonium sent to industry, where it would be turned into fuel for advanced nuclear reactors under U.S. security and safeguards.

U.S. officials are in talks with five companies, including Oklo, about possibly using old Cold War plutonium as reactor fuel, Reuters said. The Energy Department also listed Exodys Energy, SHINE Technologies, Standard Nuclear, and Flibe Energy.

Oklo is calling the material “bridge fuel,” saying it’s a temporary source as U.S. nuclear-fuel operations build up. “Fuel supply constraints are a key throttle,” CEO Jacob DeWitte said. He said some of the material that was designated for disposal could be turned into fuel for generating power. Nasdaq

Oklo is teaming up with newcleo, the advanced nuclear group from Europe that announced this week a Nasdaq listing plan, valuing it at $2.4 billion. Newcleo CEO Stefano Buono said going public should speed up its push to deploy reactors and build out fuel manufacturing in Europe and the U.S.

Mixed action for small reactor and fuel names Friday. NuScale Power picked up 3.9%. Centrus Energy dropped 1.7%. Nano Nuclear Energy was up 0.8%.

Oklo is still trading as a milestone stock. The latest quarterly numbers show a first-quarter net loss of $33.1 million, with $17.9 million in cash used for operations. Cash, equivalents and marketable securities totaled roughly $2.54 billion at the end of March. The company said its Aurora line is meant to deliver 15 to 75 megawatts of electricity.

Wedbush’s Daniel Ives called out Oklo’s “build, own, and operate” model as a key difference, TipRanks said. Proactive Investors wrote that Wedbush maintained its Outperform rating and $110 target, but added the DOE’s pick gives Oklo more fuel-strategy choices instead of shifting near-term deployment timing. TipRanks

But the trade might unwind if talks stall, if approvals limit the program, or if investors look again at losses and how long reactors take. Oklo’s risk disclosures flag an emerging industry with no commercial project running yet, regulatory risk, fuel supply risks and a chance it will need money to build plants.

Price discipline is the focus for the week. If Friday’s close holds, the DOE fuel headline stays in play. But if shares head back toward last week’s low, traders are treating Oklo as an early-stage nuclear bet, not a de-risked utility yet.

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