Shares of Oklo (NYSE:OKLO | OKLO Price Prediction) are down 9.6% in Thursday afternoon trading to $41.31, extending a month-long slide that has now erased 28% of the stock’s value. The move caps a punishing stretch for the pre-revenue advanced reactor developer, with OKLO shares also off 42% year to date.
The pain has been broader than one name. NuScale Power (NYSE:SMR), Uranium Energy (NYSEAMERICAN:UEC), and the wider speculative nuclear and uranium trade have all cooled together over the past month, raising a fair question for investors: is it time to abandon nuclear stocks, or is this a narrower story about pre-revenue names?
The short answer, based on today’s action, is nuance. Speculative reactor developers and uranium miners have de-rated hard, while profitable nuclear-adjacent utilities have held up. Certainly, sizing risk matters here.
A Sector-Wide De-Rating in Speculative Names
OKLO shares have led the drop, but they have had plenty of company. NuScale stock is down 23% over the month, and Uranium Energy shares are down 18%, with UEC off 5% today to $9.56. The VanEck Uranium and Nuclear ETF (NYSE ARCA:NLR) is down 16% for the month, a clear signal that the pain is broad rather than a single-name blowup.
NuScale is the closest comp to Oklo as a fellow pre-revenue small modular reactor (SMR) developer. Uranium Energy Corp. sits on the fuel side as a miner. Both share OKLO’s high-beta, headline-driven profile.
Because they lack revenue, Oklo and NuScale carry no meaningful P/E ratio, leaving them heavily exposed to sentiment shifts and long-dated milestone timelines.
Why OKLO Keeps Sliding
There’s no single confirmed catalyst behind Thursday’s move. The selloff looks like a continuation of a broader de-rating, with investors citing missed or slipping milestone deadlines, the ongoing wait for reactor criticality and other regulatory checkpoints, zero revenue, stretched valuation, and cited insider selling.
On insider activity, those sales are frequently routine or pre-planned under 10b5-1 programs, and by themselves are not a reliable bearish signal. It’s a sentiment factor for investors to reference, and not necessarily actionable data.
Fundamentally, Oklo remains pre-revenue with a full-year 2024 net loss of $73.62 million and $275.3 million in cash, targeting first commercial power late 2027 to early 2028. Consensus analyst price targets remain elevated at $86.95, even as OKLO stock trades at $41.
Profitable Utilities Tell a Different Story
The nuance in today’s action shows up in the utility-sector peers. Constellation Energy (NASDAQ:CEG) shares are down just 2% over the past month, while Vistra (NYSE:VST) stock is up 5% over the same stretch. Both trade on real earnings and long-dated hyperscaler power purchase agreements.
Constellation Energy carries a trailing P/E ratio of 22x, EPS of $11.51, and reaffirmed 2026 adjusted EPS guidance of $11 to $12. Vistra reaffirmed 2026 adjusted EBITDA guidance of $6.8 billion to $7.6 billion and was recently upgraded to investment grade by Fitch.
That divergence points to concentrated pain in pre-revenue reactor developers and uranium miners, while nuclear power more broadly is holding up.
Playing the Theme and What to Watch
For investors who want thematic exposure without single-stock risk, the VanEck fund offers a diversified way to play the uranium and nuclear story. NLR shares represent a narrow, sector-concentrated thematic fund, and it isn’t leveraged, but its 16% monthly drop tracks the same dynamic pulling down the speculative names.
The bull case for OKLO remains intact if you believe in nuclear’s growing role powering AI data centers, the customer pipeline anchored by the 12 GW Switch agreement, and the Equinix (NASDAQ:EQIX) $25 million pre-payment. The bear case is straightforward: no revenue, execution risk, high valuation, and extreme volatility.
Community sentiment on Oklo has stayed polarized, with Reddit sentiment scores holding in the 78 to 88 range during the drawdown even as institutional flows rotated out. That sentiment-price disconnect suggests conviction remains strong on one side of the debate.
Investors can watch for Oklo’s next NRC licensing update, further insider filings, and whether the utility bid in CEG and Vistra continues to hold into the close. Position sizes should stay modest on the speculative names, and investors should consider keeping their exposure aligned with their tolerance for milestone risk that stretches into 2027 and 2028.
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