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FISN

NASDAQ

Deep Fission Inc.

SectorUtilitiesIndustryElectric Utilities: CentralIPO2026
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Deep Fission Inc. (FISN) is an Electric Utilities: Central company listed on NASDAQ. In the last 30 days Quantisnow tracked 2 wire items for FISN, including 2 SEC filings. The most recent was published Nov 4, 2026.

Deep Fission is developing technology that places a small modular pressurized water reactor in a borehole approximately one mile underground. The Company's Gravity Nuclear Reactor approach combines established pressurized water reactor technology with a novel underground deployment model designed to simplify construction, enhance safety, and support scalable commercial deployment. Deep Fission is focused on delivering reliable, low-carbon baseload power to meet growing electricity demand from utilities, industrial customers, and data centers. The Company is currently advancing the development of its first reactor project in Parsons, Kansas, and was selected for the U.S. Department of Energy's Reactor Pilot Program.

FISN rankings

Price$1.83+0.33 (+21.93%)
02:45 PM08:45 PM

Financial highlights

Full financials
Net income, TTM
-$81.93M
Free cash flow, TTM
-$68.01M
Cash
$63.43M

For the twelve months ended Sep 30, 2026, from SEC filings. Not investment advice.

News · 26 weeks2+100%
2026-05-10: 02026-05-17: 02026-05-24: 02026-05-31: 02026-06-07: 02026-06-14: 02026-06-21: 02026-06-28: 02026-07-05: 02026-07-12: 02026-07-19: 02026-07-26: 02026-08-02: 02026-08-09: 02026-08-16: 02026-08-23: 02026-08-30: 02026-09-06: 02026-09-13: 02026-09-20: 02026-09-27: 02026-10-04: 02026-10-11: 02026-10-18: 02026-10-25: 02026-11-01: 2
2026-05-102026-11-01
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  • SEC Filings2(100%)
Activity · 52 weeks21 active day
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Latest news

2 items

FISN FAQ

9 questions
  • What does Deep Fission Inc. do?
    Deep Fission is developing technology that places a small modular pressurized water reactor in a borehole approximately one mile underground. The Company's Gravity Nuclear Reactor approach combines established pressurized water reactor technology with a novel underground deployment model designed to simplify construction, enhance safety, and support scalable commercial deployment. Deep Fission is focused on delivering reliable, low-carbon baseload power to meet growing electricity demand from utilities, industrial customers, and data centers. The Company is currently advancing the development...
  • What is the latest news on FISN?
    In the last 30 days Quantisnow tracked 2 wire items for FISN: 2 SEC filings. The most recent was published on November 4, 2026.
  • Is FISN profitable?
    No. Deep Fission Inc. reported a net loss of $81.93M for the twelve months ended Sep 30, 2026.
  • How much cash and debt does FISN have?
    Deep Fission Inc. reported $63.43M in cash and cash equivalents on its most recent balance sheet in SEC filings.
  • Where does FISN stock trade?
    Deep Fission Inc. (FISN) is listed on NASDAQ.
  • What sector and industry is FISN in?
    Deep Fission Inc. operates in the Utilities sector, Electric Utilities: Central industry.
  • When did Deep Fission Inc. go public?
    Deep Fission Inc. (FISN) completed its IPO in 2026.
  • What companies are similar to FISN?
    Notable peers in the same industry include NEE (NextEra Energy Inc.), SO (Southern Company), CEG (Constellation Energy Corporation), AEP (American Electric Power Company Inc.), D (Dominion Energy Inc.). Compare FISN side-by-side with any of them on Quantisnow.
  • How can I track FISN on Quantisnow?
    Quantisnow aggregates Deep Fission Inc.'s SEC filings, analyst ratings, insider transactions, FDA approvals, and press releases the moment they hit the wire (Wall Street's wire, on your screen.). Follow FISN to receive live email and push alerts on every new disclosure.