Is Oklo Stock a Buy Before Earnings After This Reactor Breakthrough?
TLDR
- Oklo stock jumped 4% in premarket trading after its Texas test reactor reached criticality
- Criticality means the reactor achieved a self-sustaining nuclear chain reaction
- The reactor was built in less than a year from groundbreaking to initial testing
- The Department of Energy backed the project through a special pilot program
- Oklo reports Q2 earnings on August 7, 2026, before markets open
Oklo stock was up around 2-4% in premarket trading Thursday after the Department of Energy confirmed its Texas test reactor reached criticality. The stock was trading near $43 before the open.
Criticality means the reactor is now producing a self-sustaining nuclear chain reaction. It is a key technical milestone in the development of any nuclear reactor.
What made this stand out was the speed. Oklo built the Texas test site in less than a year from groundbreaking to this point.
“Reaching criticality in less than a year is an incredible milestone for our team,” said CEO Jacob DeWitte.
The DOE supported the project through a pilot program designed to fast-track new nuclear concepts. The program allows smaller energy companies to build test sites while safety teams review progress in real time.
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