FISN — DEEP FISSION, INC.

Nasdaq · Utilities · Electric Utilities · CIK 1918102 ·
Last close
$9.72
Market Cap
$586.44M
52W High
$19.00
52W Low
$7.66
ADV30
433,922
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

TTM Snapshot

Revenues TTM
NetIncome TTM
OpCashFlow TTM
Assets (Latest)
Forward EPS
$-2.11

Peers — same industry

TickerNameMarket CapLastDaily %
HNRG HALLADOR ENERGY CO $645.69M $13.70
EDN EDENOR $524.62M $25.48
AMFN American Fusion, Inc. $472.47M $0.16
NNE Nano Nuclear Energy Inc. $799.03M $14.88
EAI ENTERGY ARKANSAS, LLC $936.79M $19.94

News headlines (Yahoo Finance, 1h cache)

EnerCom Announces SM Energy as a Keynote Speaker at the 31st EnerCom Denver - The Energy Investment Conference, on August 19, 2026, in Denver, Colorado
2026-07-31 19:30 · Yahoo
EnerCom Releases Presenter Lineup for the 31st EnerCom Denver - The Energy Investment Conference, August 17-19, 2026, in Denver, Colorado
2026-07-23 20:02 · Yahoo
Deep Fission Prototype Reactor Canister Arrives at Kansas Site, Advancing Reactor Proof-of-Concept Program
2026-07-07 11:00 · Yahoo

Recent Insider Activity

No insider activity indexed for this ticker.