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    Oklo (OKLO) Reaches First Criticality, Is The Stock Still Undervalued?

    Simply Wall St·08/12/2026 02:44:59
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    Oklo (OKLO) has just crossed two important thresholds. The company achieved first criticality at its Groves Isotope Test Reactor and reported its first quarterly revenue, giving investors fresh information on both execution and early commercialization.

    See our latest analysis for Oklo.

    Oklo’s recent first criticality and initial revenue have come against a mixed trading backdrop, with the share price up 5.66% over the last day and 8.49% over the week, yet down 39.58% year to date, while the five year total shareholder return remains very large.

    If you want to see what else is moving in nuclear-related infrastructure, it is a good time to scan 90 nuclear energy infrastructure stocks

    Oklo now has a working test reactor, first sales, and a market value of about US$8.3b after a sharp pullback this year. The core question is whether that mix results in a fair price today.

    Most Popular Narrative: 41.6% Undervalued

    The most followed narrative on Oklo values the stock at $80.55 per share versus the last close at $47.01, which implies a wide gap investors are watching closely.

    Oklo is another modular / small nuclear reactor maker, calling them Aurora Powerhouses. But it''s not trying to sell reactors, it''s trying to sell long-term electricity contracts, maintaining ownership of the plants. We’re talking recurring, predictable revenue yo. Not just selling equipment. Obviously, AI data centers are at play here. That’s a big tailwind. Oklo has already signed major agreements, e.g. with Switch for 12 GW through to 2044. Just had a major regulatory hurdle overcome, NRC (Nuclear Regulatory Commission) just approved Oklo’s Principal Design Criteria for Aurora. Reactors still aren’t fully licensed / approved, but this has a significant positive impact on uncertainty.

    Read the complete narrative.

    Want to see how this view gets to that $80.55 fair value for Oklo? The narrative leans heavily on future contract revenue, expected growth rates and margin assumptions. The interesting part is how these moving pieces are combined to justify a utility style asset with a growth stock style valuation.

    Result: Fair Value of $80.55 (UNDERVALUED)

    Have a read of the narrative in full and understand what's behind the forecasts.

    However, Oklo still faces key risks, including ongoing regulatory approvals and the fact that commercial power plants and meaningful revenue have yet to materialize.

    Find out about the key risks to this Oklo narrative.

    Next Steps

    With both risks and rewards in play for Oklo, it makes sense to look at the full picture and move quickly to shape your own view using 1 key reward and 6 important warning signs

    Looking for more investment ideas beyond Oklo?

    Do not stop with Oklo alone. Broaden your watchlist with fresh ideas built from clear fundamentals, so you are not relying on a single story.

    This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.