Deep Fission, Inc. (FISN) Stock Score, Valuation & Financial Research

Deep Fission, Inc. is in the Industrials sector and Industrial - Machinery industry. It is reviewed using Wall Street Score's company-strength, valuation, growth and financial-health framework. A complete Wall Street Score is not currently available.

Quick answer for FISN

Deep Fission, Inc. does not currently have a complete Wall Street Score. The stored market price is USD 5.13. These figures are a research snapshot, not a buy or sell recommendation.

What Deep Fission, Inc. does

Deep Fission Nuclear, Inc. engages in the provision of nuclear energy through underground nuclear reactor. It uses clustered boreholes as a containment system. The company was founded by Richard Muller and Elizabeth Muller in 2023 and is headquartered in Berkeley, CA.

Company business and revenue

Research reporting period: 2025-12-31. A research update is not a new financial filing.

How the company makes money

Deep Fission, Inc. is a nuclear energy technology company currently in the development stage. It is focused on researching and developing a small modular reactor (SMR) technology that utilizes deep borehole emplacement, and it does not yet generate revenue from commercial operations.

Products and services

  • Development of small modular reactor (SMR) nuclear energy technology designed for emplacement in deep boreholes approximately one mile below the Earth's surface.

Business strengths to evaluate

  • Proprietary nuclear energy technology utilizing deep borehole emplacement Source

Business risks and research considerations

  • Development stage company with no history of revenue and significant operating losses Source
  • Technological and regulatory risks associated with nuclear energy development Source

Sources: Company research source · Proprietary nuclear energy technology utilizing deep borehole emplacement · Development stage company with no history of revenue and significant operating losses

Company research refreshed 2026-10-12. This is saved research, not a live check of company relationships. Check the reporting period and source disclosures. Financial figures and scores follow their separate update schedules.

FISN financial snapshot

Statement amounts: USD. Quote amounts: USD. No exchange-rate conversion is performed in this snapshot. Market-capitalization currency is not supplied by this projection.

Wall Street Score:
Not currently available
Stored price:
USD 5.13
Market capitalization:
309.51M (currency not supplied)
Revenue:
USD 0.00
Net income:
USD -106.22M
Free cash flow:
USD -13.09M
Cash:
USD 93.02M
Total debt:
USD 56K
EPS:
USD -2.38

What stands out

  • Free cash flow is USD -13.09M, negative for the stored period.
  • The balance sheet shows USD 93.02M of cash versus USD 56K of total debt, an excess of cash over debt on these two reported measures.
  • The current research record carries a limited financial history warning, which should be reviewed alongside the score.

Company-specific financial comparisons

The following are calculated from saved company data, not forecasts or statements about future performance. Differences in reporting dates or units can make a ratio misleading; verify the original filings.

  • Cash exceeds debt by USD 92.96M using the stored balance-sheet values. This does not include other obligations or restricted cash.

Questions worth answering for FISN

Use these questions to check the stored figures against the latest company filings. They identify issues to investigate; they are not findings about management's plans or future results.

  • How long can FISN fund negative free cash flow using its current cash position before it may need more debt or new shares?
  • How is FISN likely to use its cash advantage: reinvestment, acquisitions, debt reduction, dividends or buybacks?
  • What specifically needs to improve for FISN to reach sustainable profitability?
  • What does the current limited financial history warning mean for the reliability or interpretation of FISN's score?

What the numbers mean

A complete valuation score is not currently available, so valuation should be checked using the available earnings, cash-flow and price data.

A complete financial score is not currently available, so investors should review cash, debt, earnings and cash flow directly.

A strong company and an attractive stock price are not always the same thing. Revenue, earnings, free cash flow, debt, management quality, competitive advantage and valuation should be considered together. Wall Street Score organizes these inputs into a consistent research framework so investors can identify what deserves deeper review.

Data freshness: Financial data last refreshed 2026-10-01.

Research-input completeness: 45% of the scoring inputs required for this public page are currently available.

How to research FISN

Start by understanding how the company makes money. Then compare revenue and earnings trends, cash generation, debt, liquidity and valuation. Review the company's latest filings and earnings reports before acting on any score or model estimate.

Learn how to analyze a stock · Read the Wall Street Score methodology · Browse other stocks

Data may change as company filings and market prices update. Educational research only; not a buy or sell recommendation.