NEW YORK, December 31, 2025, 21:05 ET — Market closed
- Oklo shares were last up 0.2% at $71.76 after Wednesday’s close.
- Traders stayed focused on dilution risk from Oklo’s share-sale program and the pace of U.S. nuclear licensing.
- U.S. markets are shut on Jan. 1 and reopen Jan. 2, with early January economic data in view.
Oklo Inc. shares were last up about 0.2% at $71.76 on Wednesday after the U.S. market close, capping a muted year-end session for the nuclear start-up.
The near-flat finish matters because Oklo’s stock has been driven less by current earnings and more by expectations for when it can license and deploy its first reactors. That puts investors’ attention on regulatory timelines and how the company funds its buildout.
Oklo is developing what it calls the Aurora “powerhouse,” part of a wave of so-called small modular reactors (SMRs) — smaller nuclear plants designed to be built in modules — that backers say could deliver round-the-clock power to large customers. The stock tends to trade on incremental signals from regulators and on any hints of share dilution. Oklo+1
In Wednesday’s session, Oklo traded between $70.81 and $72.33 and saw roughly 6.9 million shares change hands, according to market data.
Other nuclear-linked names leaned lower. NuScale Power fell nearly 1%, Nano Nuclear Energy slid about 3.5%, Centrus Energy was down about 1.9% and BWX Technologies eased about 0.9%, pointing to a softer tone across the group into the close.
A key overhang has been Oklo’s at-the-market (ATM) program — a structure that lets a company sell newly issued shares into the market from time to time, rather than in one deal — which the company disclosed in a December prospectus. Investors typically watch ATMs because they can increase share count and pressure the stock if selling accelerates.
Recent insider filings have also been on traders’ radar. A Form 4 filed in late December showed sales executed under a Rule 10b5-1 plan, a pre-arranged trading plan that can allow executives to sell shares on a set schedule.
On the regulatory front, Oklo has highlighted progress on licensing steps with the U.S. Nuclear Regulatory Commission (NRC). In a September update, Oklo said the NRC accepted its Principal Design Criteria topical report for review under an accelerated timeline and indicated a draft evaluation was expected in early 2026.
“Modernized, non-duplicative processes are key enablers for how advanced nuclear can scale rapidly and safely,” co-founder and CEO Jacob DeWitte said in that release. Oklo
For equity investors, the next swing factors are straightforward: any formal NRC feedback on Oklo’s submissions and any update that changes expectations for when Aurora can move through the licensing pipeline. The market will also monitor future SEC filings for signs the company is tapping its share-sale capacity more aggressively.
Before the next session, traders will contend with a holiday break. The NYSE is closed on Thursday, Jan. 1 for New Year’s Day, and reopens Friday, Jan. 2.
Macro risk is also back in focus as 2026 begins. The Institute for Supply Management said its next Manufacturing PMI report is due on Monday, Jan. 5, while the Labor Department’s monthly jobs report for December 2025 is scheduled for Friday, Jan. 9; the Federal Reserve’s 2026 meeting calendar shows the next rate decision on Jan. 28.
Technically, Wednesday’s low near $70.81 is an immediate support level traders will reference, with $72.33 as a near-term resistance marker from the day’s high. Oklo is down about 11.8% over the last five sessions, and some market calendars list late March as the next earnings window — a reminder that cash burn and funding plans are likely to remain central to the story.
