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Apr 15, 2026 4:00 PM

Oklo, NuScale Stocks Rally On US Space Nuclear Power Initiative

Shares of next-generation nuclear developers Oklo Inc. (NYSE:OKLO) and NuScale Power Corp. (NYSE:SMR) surged Wednesday after the U.S. government unveiled a sweeping initiative to bring nuclear energy technology into space. 

OKLO stock is climbing. See the chart and price action here. 

SR-1 Freedom

The announcement comes as part of the newly signed National Initiative for American Space Nuclear Power (NSTM-3), a joint NASA–Pentagon strategy to develop nuclear power systems capable of supporting future lunar and interplanetary missions.

The initiative, officially endorsed by NASA this week, aims to deploy a 20-kilowatt electric (kWe) space reactor, codenamed "SR-1 Freedom," for interplanetary propulsion and surface power. 

In addition to designing the small modular reactor, the program outlines an in-orbit demonstration by 2028 and a functional reactor installation on the ...