Nuclear stocks are reversing hard today even as NuScale announced a real operational win, and the gap between improving fundamentals and falling share prices points to something more unsettling happening beneath the surface.
NuScale Power (SMR) stock experienced a 7% decline, falling to $9.15 midday Wednesday. This selling extended across the entire nuclear complex, contrasting with the SPDR S&P 500 ETF Trust (SPY) remaining unchanged at $765.77, indicating a specific downturn in the nuclear sector. Oklo (OKLO) shares dropped 6% to $41.58, while Uranium Energy (UEC) stock saw a 2% dip to $12.98. The Global X Uranium ETF (URA), acting as a sector-fund proxy, was also impacted, sitting at the center of this market movement.
This marks the second consecutive day of reversal for the nuclear complex, with the current declines largely offsetting recent rallies. NuScale Power's 7% intraday slide significantly cut into its 21% monthly gain, while Oklo's 6% drop erased most of its 10% monthly advance. Uranium Energy, despite leading the group with a 40% monthly move, showed relative resilience with only a 2% slide, which often signals the start of momentum unwinding. The year-to-date performance is mixed; Uranium Energy was up 14%, while NuScale Power was down 31% and Oklo down 38% through Tuesday's close, suggesting the recent rally was a temporary rebound for the reactor developers.
Despite constructive news from NuScale Power regarding the deployment of nuclear-specific AI tools for engineering and knowledge-management, the selling continued. NuScale's proof of concept reportedly reduced information-retrieval time by up to 80% and it remains the sole small modular reactor developer with NRC design certification. Oklo's operational outlook also remains firm, with its Aurora Powerhouse leveraging fast-reactor technology with over 400 reactor-years of operating experience. It plans to use recycled fuel in its first Aurora-INL reactor, with Department of Energy safety approval and targeted operations in late 2027 to early 2028. The disconnect between these positive operational developments and declining share prices suggests that current trading is driven more by market positioning and momentum rather than fundamental project timelines.
The rapid reversal of significant monthly gains in Uranium Energy and NuScale Power stocks, without clear fundamental triggers, highlights the importance of position sizing. Investors with substantial month-to-date gains are advised to consider trimming their positions to mitigate risks from further sharp declines. New buyers should exercise caution and wait for market stability before entering. For broader market insights, monitoring the S&P 500 fund's performance is crucial, as a general market downturn could intensify pressure on the nuclear sector. A noticeable increase in Uranium Energy stock selling would be a strong indicator that the sector's unwind might continue, even though it currently holds a larger monthly gain compared to its peers.