Deep Fission, Inc.
FISN Nasdaq· Electric Services
Last close · Oct 23, 2026
$2.30
KIRA · Stoqly’s AI analyst, in plain words
- Deep Fission, Inc. lost $61.0M in fiscal 2025.
- Free cash flow was −$13.1M in fiscal 2025, — of revenue.
Market cap
$127M
P/E
—
Revenue
—
Net income
−$61.0M
Free cash flow
−$13.1M
Operating margin
—
Deep Fission, Inc. in 30 seconds · fiscal 2025
Does it make a profit?
−$61.0M
No. It lost money last year.
What Deep Fission, Inc. does
No business description yet.
- Fiscal year ends
- December 31, 2025
- Latest annual report
- 10-K · Apr 15, 2026
- Legal name
- DEEP FISSION, INC.
- CIK
- 0001918102
Deep Fission, Inc. · FISN
Results and finances
The last 4 fiscal years. Amounts in USD.
| Fiscal year | FY22 | FY23 | FY24 | FY25 |
|---|---|---|---|---|
| Sales and profit | ||||
| Net income | −$0.0M | −$0.0M | −$5.7M | −$61.0M |
| Diluted EPS | −$0.01 | −$0.01 | −$0.57 | — |
| Cash | ||||
| Cash from operations | −$0.0M | −$0.0M | −$2.8M | −$13.1M |
| Capital expenditure | — | — | $0.0M | $0.0M |
| Free cash flow | — | — | −$2.8M | −$13.1M |
| Share count change | — | 0.0% | 100.7% | — |
| Debt and strength | ||||
| Cash and short-term investments | $0.0M | $0.9M | $6.7M | $23.7M |
| Shareholders' equity | −$0.1M | $0.5M | −$4.1M | $22.3M |
| Current ratio | 0.0x | 0.0x | 42.5x | 10.2x |
| Returns and quality | ||||
| Return on equity | — | −23.9% | — | −670.2% |
| Return on tangible equity | — | −10.3% | — | −273.7% |
| Altman Z'' | −9,405.8 | −1,740.8 | −0.7 | 1.0 |
Insiders bought, 12 months
$0.0M
0 insiders
Insiders sold, 12 months
$0.0M
0 insiders
Of sales under plans
—
$0.0M
How to read these numbers
- Revenue:
- Total sales reported in the income statement.
- Operating margin:
- Operating income as a share of revenue.
- Net income:
- Profit after all expenses, interest and tax.
- Free cash flow:
- Cash from operations minus capital spending.
- Net debt / EBITDA:
- Years of EBITDA needed to pay off net debt. Below zero means more cash than debt.
- Return on capital:
- After-tax operating income as a share of the money invested in the business: debt plus equity, minus cash.
Deep Fission, Inc. · FISN
Charts and comparison
Ten years at a glance, and how it stacks up against similar companies.
Revenue
Net income
Margins, % of revenue
Cash vs debt (incl. leases)
Free cash flow
Dividends and buybacks
KIRA
At $2.30 a share, the company is worth $127M.
Source: SEC EDGAR XBRL filings (CIK 0001918102). Data updated October 24, 2026. For information only — not investment advice. Check the original filings before relying on any figure.