Deep Fission builds nuclear reactors in underground boreholes, using the earth itself as a containment shell—think of a submarine reactor buried in a deep well.
No revenue yet; the company burns cash, with net losses of USD -0.06B in 2025 and USD -0.03B in Q2 2026. Money comes only from investors, not operations.
The borehole containment concept is novel, but no commercial plant exists, and giants like NuScale Power and Westinghouse already hold regulatory and supply-chain advantages. Without proven deployment, the moat is weak.

Key events, in time order
Multiple analyst initiations on Aug 4, new coverage facts
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