Nuclear Startup Funding Hits Record $6B Amid IPO Slump

Nuclear energy startups raised more than $6 billion in the first half of 2026, setting a new record for venture investment as AI-driven energy demand accelerates. Major deals included $1 billion rounds for Commonwealth Fusion Systems and Valar Atomics. Despite this private market strength, public equity performance has weakened significantly; shares of recent IPOs like X-energy and Oklo have dropped substantially from their debut highs. Analysts attribute the public market slump to valuation corrections and regulatory challenges, even as private funding provides runway for continued development of small modular reactors and fusion technologies.