Deep Fission, Inc. FISN
Company Overview
Deep Fission, Inc. develops and deploys small modular nuclear reactors placed deep underground to generate electricity. The company provides small modular nuclear reactors designed for underground installation at a depth of one mile, offering carbon-free energy and capacity solutions. It delivers scalable reactor configurations for onsite power needs or flexible offtake agreements in wholesale power markets, manages the licensing process with regulatory authorities, and supports strategic development for decarbonization and reliability goals. The company also provides advisory and partnership services for deployment and operation of its reactor technology, using artificial intelligence to streamline operations. Deep Fission serves utilities, data centers, heavy industry, the military, government, and large cities. The company was founded in 2023 and is based in Berkeley, California.
Why Investors Should Care
Carries low leverage with a debt-to-equity ratio of 0.06.
Growth & Price Performance
Stock Price Performance
| 1 Year: | -52.06% |
| 6 Months: | - |
| 3 Months: | - |
| 1 Month: | -22.36% |
Highlights auto-generated from reported financials and price data; not investment advice. Verify with official filings before acting.
- Price vs 50-DMABelow
- RSI (14)34.88 · Neutral
Auto-generated from price history and fundamentals; not investment advice.
Price Chart
Technical Trend
Computed from daily close history using EMA cross, slope, and RSI signals.
Note: intraday data is not stored locally. “Hourly” uses the most recent 10 daily candles as a short-term proxy.
Fundamental Growth Charts
No fundamental data available for this stock.
Interactive charts for Revenue, Net Income, EBITDA, Free Cash Flow, EPS, ROE, ROCE, Gross/Net/Operating Margin and more — switch metric and period using the dropdowns above. CAGR is computed across the displayed window (quarterly CAGR is annualised). Visual growth charts make it easy to spot multi-year compounding trends at a glance — far faster than reading raw numbers in a table.
PROS
No notable strengths flagged.
CONS
- Trading 52.1% below its 52-week high.
* The pros and cons are auto-generated from financial metrics.
Valuation
Growth (CAGR)
Profitability & Returns
Balance Sheet & Liquidity
Ownership
Financial Snapshot
Peer comparison
Peer companies in the same sector (Industrials).
| # | Name | CMP $ | P/E | Mkt Cap | Div Yld % | ROCE % | ROE % | Rev CAGR 5Y % | Profit CAGR 5Y % |
|---|---|---|---|---|---|---|---|---|---|
| 1 | FISN Deep Fission, Inc. | 6.98 | -3.92 | $411.16M | 0.00% | -95.95% | - | - | - |
| 2 | SPCX Space Exploration Technologies Corp. R3KAIDEFENCE | 153.47 | -139.52 | $1.16T | 0.00% | -3.22% | -11.95% | 34.08% | -3.34% |
| 3 | CAT Caterpillar Inc. SPXR3K | 822.48 | 35.47 | $378.07B | 0.79% | 17.98% | 56.97% | 2.29% | 5.24% |
| 4 | GE GE Aerospace SPXR3KDEFENCE | 334.91 | 39.40 | $347.49B | 0.60% | 9.52% | 48.23% | -7.42% | -5.36% |
| 5 | RTX RTX Corporation SPXR3KDEFENCE | 198.81 | 35.06 | $267.95B | 1.51% | 8.28% | 12.27% | 2.61% | 2.62% |
| 6 | GEV GE Vernova Inc. SPXR3KAI | 971.31 | 27.86 | $258.69B | 0.22% | 6.30% | 82.58% | 8.68% | - |
| 7 | DE Deere & Company SPXR3K | 680.73 | 37.88 | $183.54B | 0.95% | 12.53% | 18.24% | 3.43% | 5.10% |
| 8 | UNP Union Pacific Corporation SPXR3K | 288.45 | 23.38 | $171.36B | 2.01% | 15.22% | 39.70% | 2.30% | 7.77% |
| 9 | BA The Boeing Company SPXR3KDEFENCE | 210.73 | 75.80 | $166.43B | 0.00% | -9.01% | - | 1.67% | -3.28% |
Financial Statements Quarterly Results · Profit & Loss · Balance Sheet · Cash Flows · Ratios
Quarterly Results
Figures in USD.
| Metric | Mar 2022 | Jun 2022 | Sep 2022 | Mar 2023 | Jun 2023 | Sep 2023 | Mar 2024 | Jun 2024 | Sep 2024 | Mar 2025 | Jun 2025 | Sep 2025 | Mar 2026 | Jun 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Operating Income | -7.83K | -10.49K | -20.42K | -12.80K | -12.84K | -10.88K | -11.29K | -11.46K | -705.63K | -1.72M | -2.10M | -8.80M | -21.84M | -31.59M |
| Net Income | -7.83K | -10.49K | -20.42K | -12.80K | -12.84K | -10.88K | -855.77K | -1.27M | -1.22M | -3.14M | -3.80M | -45.41M | -21.34M | -31.01M |
| Diluted EPS | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | -0.09 | -0.19 | -0.27 | -1.94 | -0.39 | -0.56 |
| R&D Expense | - | - | - | - | - | - | - | - | 146.72K | 684.39K | 865.00K | 1.92M | 7.87M | 18.30M |
Profit & Loss (Annual)
Figures in USD.
| Metric | Dec 2022 | Dec 2023 | Dec 2024 | Dec 2025 |
|---|---|---|---|---|
| Operating Income | -49.41K | -47.62K | -4.10M | -21.38M |
| Net Income | -49.41K | -47.62K | -5.71M | -61.00M |
| Diluted EPS | -0.01 | -0.01 | -0.57 | - |
| R&D Expense | - | - | 661.18K | 6.62M |
Balance Sheet (Annual)
Figures in USD.
| Metric | Dec 2021 | Dec 2022 | Dec 2023 | Jun 2024 | Sep 2024 | Dec 2024 | Jun 2025 | Sep 2025 | Dec 2025 |
|---|---|---|---|---|---|---|---|---|---|
| Total Assets | - | 69 | 774 | - | - | 6.86M | 4.96M | 30.55M | 24.69M |
| Total Equity | -12.42K | -61.83K | 460.26K | -123.72K | -1.31M | -4.08M | - | 29.81M | 22.29M |
| Cash & Equivalents | - | 69 | - | - | - | 6.73M | - | - | 23.72M |
| Total Liabilities | 12.42K | 61.90K | 110.22K | - | - | 10.94M | 15.65M | 744.30K | 2.40M |
| Current Liabilities | 12.42K | 61.90K | 110.22K | - | - | 161.44K | - | - | 2.40M |
Cash Flows (Annual)
Figures in USD.
| Metric | Dec 2022 | Dec 2023 | Dec 2024 | Dec 2025 |
|---|---|---|---|---|
| Operating Cash Flow | -40.06K | -46.28K | -2.80M | -13.05M |
| Investing Cash Flow | - | - | -2.66K | -43.44K |
| Financing Cash Flow | 40.12K | 46.98K | 8.59M | 30.09M |
| Capital Expenditure | - | - | -2.66K | -43.44K |
| Free Cash Flow | - | - | -2.80M | -13.09M |
Ratios (Annual)
Figures in %.
| Metric | Dec 2022 | Dec 2023 | Dec 2024 | Dec 2025 |
|---|---|---|---|---|
| Gross Margin % | - | - | - | - |
| Operating Margin % | - | - | - | - |
| Net Margin % | - | - | - | - |
| ROE % | 79.9% | -10.3% | 140.0% | -273.7% |
| ROCE % | 79.9% | 43.5% | -61.2% | -95.9% |
Shareholding Pattern
Top Institutional Holders
| # | Holder | % Held | Shares | Value |
|---|---|---|---|---|
| 1 | Blue Owl Capital Holdings LP | 2.26% | 1.33M | $11.29M |
| 2 | Elevation Wealth Management LLC | 0.51% | 298.33K | $2.53M |
| 3 | UBS Group AG | 0.34% | 198.50K | $1.68M |
| 4 | Consolidated Press International Holdings Limited | 0.23% | 133.33K | $1.13M |
| 5 | Citadel Advisors Llc | 0.19% | 110.00K | $931.70K |
| 6 | LPL Financial LLC | 0.12% | 70.86K | $600.17K |
| 7 | Geode Capital Management, LLC | 0.05% | 27.33K | $231.51K |
| 8 | Essential Investment Partners LLC | 0.04% | 26.40K | $223.61K |
| 9 | Chapin Davis, Inc. | 0.03% | 19.00K | $160.93K |
| 10 | Goldman Sachs Group Inc | 0.03% | 17.37K | $147.15K |
Analyst View
Analyst aggregate. Targets and ratings update periodically; not investment advice.
Latest News
Recent headlines for FISN
Deep Fission (FISN) Stock Chart and Price History 2026 $FISN - marketbeat.com
<a href="https://news.google.com/rss/articles/CBMiYkFVX3lxTFB3SVR5bnVTbVZiSlFQWDg3b3RGYmU3blpJbWpKaUhMSUR4X01Tam8tOENXeEUxNzBUWml0Rkcxd3hmQncxcGltS3FHcjBpc0pJaEp1YlF1b01UanpXVnRmOGFR?oc=5" target="_blank">Deep Fission (FISN) Stock Chart and…
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Deep Fission plans a full-power reactor one mile underground by 2027 - Stock Titan
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Company proposing nuclear power facility in Kansas plans stock offering - Kansas Reflector
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Deep Fission (FISN) Stock Forecast and Price Target 2026 $FISN - marketbeat.com
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Deep Fission: Customer Pipeline Of 18.5GW Is Unlikely To Be A Stock Upside Catalyst - Seeking Alpha
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FISN — Frequently Asked Questions
What is the current share price of Deep Fission, Inc. (FISN)?
As of 2026-09-19 21:16 PDT, Deep Fission, Inc. (FISN) trades at $6.98 on NasdaqGM. Its 52-week range is $6.39 to $14.56.
What is the market capitalisation of FISN?
Deep Fission, Inc. (FISN) has a market capitalisation of $411.16M on NasdaqGM.
What is the P/E ratio of FISN?
FISN trades at a trailing price-to-earnings (P/E) ratio of -3.92. The industry average P/E is 26.00. Its price-to-book (P/B) ratio is 4.30.
Is FISN a good stock to buy?
This page provides a data-driven analysis of Deep Fission, Inc. (FISN), including valuation ratios, profitability, growth trends, auto-generated pros and cons, peer comparison and AI exposure. Review these fundamentals alongside your own research and risk tolerance. This is informational content, not investment advice.