After Oklo went public, the stock tanked. Shares plunged more than 50% on their first day of trading to a little under $8.50. The stock struggled until last month when Microsoft a

Part of the gains in Oklo shares are likely related to Sam Altman, who owns roughly 6% of the company. Oklo went public in May through a special purpose acquisition company (SPAC) created by Altman, and its performance had been mediocre before last week's breakout.

Oklo Inc. (OKLO), a nuclear startup backed by OpenAI CEO Sam Altman, is in focus after Alphabet's Google (GOOG, GOOGL) signed an agreement with Kairos Power to power its AI data centers with small modular nuclear reactors.

Oklo — the nuclear power startup backed by OpenAI head Sam Altman — has surged more than 150% in October as major hyperscalers have decided to double down on the nuclear renaissance to fuel data centers and artificial intelligence.