Deep Fission
Develops borehole-installed nuclear reactors for reliable low-carbon power.
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Profile
Develops a borehole-installed pressurized-water reactor for reliable, low-carbon power, with planned delivery, project-development, licensing, and service revenue. The business remains pre-revenue, while commercial deployment depends on drilling and emplacement proof, NRC licensing, fuel, suitable sites, and grid access.
Develops the Gravity Nuclear Reactor, a small pressurized-water reactor designed for a water-filled, lined borehole about one mile underground. A factory-assembled module transfers heat through closed loops to surface equipment for electricity conversion. The initial focus is reliable, low-carbon baseload power for data centers, industrial users, utilities, and government or defense installations in the United States.
Builds around established PWR technology and conventional low-enriched uranium, with drilling, underground emplacement, integration, and proof-of-concept installation central to the program. Planned revenue sources include reactor delivery, project development, technology licensing, and operations and maintenance, but no revenue has begun. Commercial deployment requires NRC licensing; DOE authorization governs a separate test-reactor path.
Company facts
Key statistics
Year to date −54.9% · Average volume (30d) 198.6K
Analysts
No analyst consensus on record.
Earnings
EPS
Revenue
History
| Report date | EPS est | EPS | Surprise | Revenue est | Revenue | Surprise | Next session |
|---|---|---|---|---|---|---|---|
| Aug 3, 2026Q2 FY26 | −$0.55 | −$0.56 | −2.4% | — | — | — | −8.27% |
| Jun 3, 2026Q1 FY26 | −$0.55 | −$0.39 | +28.7% | — | — | — | — |
| May 8, 2026Q1 FY26 | — | −$0.35 | — | — | — | — | — |
Financial highlights
| 4 quarters | — | — | Q3 FY25 | Q4 FY25 | Q1 FY26 | Q2 FY26 | |
|---|---|---|---|---|---|---|---|
| Revenue | — | — | $0 | $0 | $0 | $0 | |
| Gross profit | — | — | −$2.6K | −$3.1K | $0 | $0 | |
| Operating income | — | — | −$8.8M | −$9.1M | −$21.8M | −$31.6M | |
| Net income | — | — | −$40.4M | −$13.5M | −$21.3M | −$31.0M | |
| Diluted EPS | — | — | −$1.29 | −$0.18 | −$0.35 | −$0.56 | |
| Gross margin | — | — | — | — | — | — | |
| Operating margin | — | — | — | — | — | — |
Balance sheet, Jun 30, 2026Cash & short-term investments $93.0M · Total debt $56.0K · Total assets $107.3M · Shareholders' equity $98.8M
Dividends
No dividends on record.
Ownership
Shares outstanding 60.33M · Float 32.50M · 53.9% free float
Top shareholders13F · 13D/G · Form 4
| Holder | Shares | % outstanding | Form | Filed |
|---|---|---|---|---|
| Blue Owl Capital Holdings LP | 1.33M | 2.21% | 13F | Aug 11, 2026 |
| Elevation Wealth Management LLC | 298.3K | 0.49% | 13F | Jul 29, 2026 |
| UBS Group AG | 198.5K | 0.33% | 13F | Aug 13, 2026 |
| Consolidated Press International Holdings Ltd | 133.3K | 0.22% | 13F | Aug 13, 2026 |
| Citadel Advisors LLC | 110.0K | 0.18% | 13F | Aug 14, 2026 |
Insider tradesForm 4
Nothing filed in the last 12 months.
View detailsPeers
- Oklo
Data-center and industrial clean-power rival with Aurora reactors.
- NuScale Power
Closest water-cooled SMR rival for modular utility and industrial plants.
- X-energy
Data-center and industrial SMR rival with Xe-100 and an Amazon pipeline.
- GE Vernova
Large utility SMR contender through the BWRX-300 platform.
- Nano Nuclear Energy
Microreactor prospect for on-site AI data-center and defense power.
- BWX Technologies
Defense-focused transportable microreactor and nuclear-manufacturing rival.
CompareAfter-hours close
| Company | Price | Change | |||||
|---|---|---|---|---|---|---|---|
| Deep Fission | $6.68 | +1.80% | $395.8M | — | — | — | — |
| Oklo | $40.35 | +0.57% | $6.98B | — | — | 5,771.9 | — |
| NuScale Power | $9.28 | +0.05% | $2.77B | — | — | 259.1 | −99.1% |
| X-energy | $17.35 | +0.75% | $378.0M | — | — | 2.5 | — |
| GE Vernova | $914.10 | +0.30% | $242.88B | 26.2 | 43.5 | 5.9 | +21.9% |
| Nano Nuclear Energy | $17.98 | +0.06% | $965.0M | — | — | 4,508.3 | — |
| BWX Technologies | $153.62 | +0.47% | $14.00B | 39.4 | 30.4 | 4.0 | +18.0% |
| Median | 32.8 | 37.0 | 132.5 | +18.0% |