Updated
DEEP FISSION, INC.FISN · Industrials
$1.85+23.33%
Market cap$111M
IndustrySpecialty Industrial Machinery

DEEP FISSION, INC. (FISN) Stock

What DEEP FISSION, INC.'s price implies, from its SEC filings.

Key numbers

P/E (trailing)
—
P/E (forward)
-2.10x
Price / free cash flow
—
EV / EBITDA
—
Revenue growth
—
Operating margin
—
Dividend yield
—
Debt / equity
0.00x

What DEEP FISSION, INC.'s price implies

DEEP FISSION, INC.'s free cash flow was negative in fiscal 2025, so a cash-flow reverse DCF doesn't give a meaningful answer. The Modeling tab works from revenue and margins instead.

Revenue and free cash flow

Fiscal years, from DEEP FISSION, INC.'s 10-K filings.

DEEP FISSION, INC. revenue and free cash flow

FY2022–FY2025
FISNFree cash flow-$13M
DEEP FISSION, INC. revenue and free cash flow-$15M-$10M-$5M$0B2022202320242025-$13M

Results from SEC filings

All three statements · Quarters, TTM and 20+ years of statements in Investingly

DEEP FISSION, INC. (FISN) revenue, net income, free cash flow, EPS and operating margin by fiscal year
Fiscal year2022202320242025
Revenue————
Net income-$49,408-$47,625-$6M-$61M
Free cash flow——-$3M-$13M
EPS (diluted)-$0.01-$0.01-$0.57-$2.41
Operating margin————

Superinvestors who own FISN

From each investor's latest 13F filing (what a 13F shows).

None of the superinvestors we track held FISN in their latest 13F.

DEEP FISSION, INC. insider buying

Open-market purchases by executives and directors in the last 12 months, from SEC Form 4 filings (what insider buying tells you).

No open-market insider purchases of FISN in the last 12 months. Most insider activity is selling and option exercises, which aren't shown here.

Fundamental grade

D

Five factors scored 1 to 9 from FISN's latest numbers. It describes the business, not whether the stock is a buy.

Valuation7
Profitability0
Financial health9

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How DEEP FISSION, INC. compares

DEEP FISSION, INC.'s ROE is higher than 2% of Industrials companies and 4% of the 3,460 companies with an ROE figure.

DEEP FISSION, INC. (FISN) percentile ranks: share of companies with a lower figure
Higher thanIndustrialsAll stocks
ROE2%4%

Questions about DEEP FISSION, INC.

Are DEEP FISSION, INC. insiders buying the stock?

No open-market insider purchases of FISN in the last 12 months, according to SEC Form 4 filings.

Prices and ratios as of Nov 9, 2026; statements from SEC filings. Information only, not investment advice. Superinvestor holdings come from 13F filings, which are filed up to 45 days after each quarter ends.

Investingly

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