FISN Overview

Deep Fission, Inc. is a nuclear energy company. It is engaged in developing small modular pressurized water reactors installed one mile underground. It is developing a small modular reactor based on established pressurized water reactor technology, with novel emplacement in deep boreholes approximately one mile below the Earth’s surface. Its activities include test borehole construction, reactor design, safety analysis, thermal-hydraulic modeling, regulatory engagement with the Department of Energy (DOE) and the Nuclear Regulatory Commission (NRC), and supply chain development for reactor components and drilling operations. Its reactor, which it refers to as the Gravity Reactor, will leverage subsurface conditions to support key containment and operating functions, including the use of hydrostatic pressure from a water column within the borehole to support reactor operating pressure and cooling, and the surrounding geological formation to provide structural confinement and shielding.

Wall Street analysts forecast FISN stock price to fall over the next 12 months. According to Wall Street analysts, the average 1-year price target for FISN is USD with a low forecast of USD and a high forecast of USD. However, analyst price targets are subjective and often lag stock prices, so investors should focus on the objective reasons behind analyst rating changes, which better reflect the company's fundamentals.

Deep Fission, Inc revenue for the last quarter amounts to -21.84M USD, increased 1170.41

Deep Fission, Inc. EPS for the last quarter amounts to -14101199.00 USD, increased 758.23

Deep Fission, Inc (FISN) has 0 emplpoyees as of July 08 2026.

Today FISN has the market capitalization of 625.85M USD.