FISN — DEEP FISSION, INC.

· Utilities · Electric Utilities · CIK 1918102 ·
Last close
$11.11
Market Cap
$670.30M
52W High
$19.00
52W Low
$7.66
ADV30
663,923
Next earnings
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.

Quarterly Fundamentals

Revenues vs Net Income (last 4 Q)

Assets vs Liabilities (last 4 Q)

PeriodRevenuesGrossProfit OpIncomeNetIncomeAssets CashLiabilities
Mar 2026 0 -21,838,481 -21,343,447 92,030,714 84,767,555 3,897,357
Mar 2025 0 -1,719,012 -3,136,887

Cashflow TTM (yfinance, fills SEC gap)

Operating CF
$-15,675,668
Investing CF
$-68,594
Financing CF
$76,010,132
CapEx
$-68,594
Dividends Paid
Buybacks
EPS Diluted TTM
$-0.38
As of
2026-06-20

Balance + Analyst (yfinance extras)

Retained Earnings
$-88,070,546
Inventory
Receivables
ST Investments
EBIT TTM
$-23,557,493
Pretax Income TTM
$-24,480,334
Interest Exp TTM
Analysts

Annual Trend (SEC EDGAR, last 2y)

Revenues vs Net Income (last 2y)

FY endRevenuesOpIncome NetIncomeAssetsLiabilities EquityOCF
Dec 2025 0 -21,384,169 -61,002,954 24,691,085 2,403,972 -13,051,195
Dec 2024 0 -4,103,003 -5,713,369 6,863,001 10,944,822 -2,799,642

Peers — same industry

TickerNameMarket CapLastDaily %
HNRG HALLADOR ENERGY CO $769.64M $16.33
EDN EDENOR $523.39M $25.42
EAI ENTERGY ARKANSAS, LLC $939.60M $20.00
NNE Nano Nuclear Energy Inc. $983.02M $18.86
XIFR XPLR Infrastructure, LP $1.15B $12.15

News headlines (Yahoo Finance, 1h cache)

Deep Fission Prototype Reactor Canister Arrives at Kansas Site, Advancing Reactor Proof-of-Concept Program
2026-07-07 11:00 · Yahoo
AI’s Energy Crunch Has Investors Searching for Next IPO Winners
2026-06-27 13:00 · Yahoo
Deep Fission Joins DOE Secretary Wright at Idaho National Laboratory Event to Celebrate Nuclear Innovation
2026-06-25 19:30 · Yahoo
Advanced Nuclear Company Deep Fission Announces Customer Pipeline of Up to 18.5 Gigawatts of Generation Capacity
2026-06-24 11:00 · Yahoo
Advanced Nuclear Company Deep Fission Announces Closing of Public Offering of Common Stock
2026-06-22 20:15 · Yahoo
Advanced Nuclear Company Deep Fission Announces Pricing of Public Offering of Common Stock
2026-06-18 00:16 · Yahoo

Recent Insider Activity

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