FISNIndustrials · Specialty Industrial Machinery

FISN Stock Forecast: Deep Fission, Inc. Price Predictions for 2026-2027

Last close, 11 Sept 2026

$7.16

+6.07% on the day

The 4 Wall Street analysts covering Deep Fission, Inc. hold a median 12-month price target of $19 — +165.4% from the last close. Ticker Nerd's systematic factor model, run across ~4,600 US stocks, ranks it 3 of 100 as at 12 Sept 2026 — in the weakest quartile. The Street sees upside; the factor read is a caution. That gap is the story on this page.

Market cap

$421.8M

Ticker Nerd rank

3 / 100

Median analyst target

$19

Analysts covering

Total return, dividends reinvested

+0.3%

−13.2%

From high

−50.8%

From low

+12.1%

$15

Range since 18 June 2026, adjusted closes · the dot is the last close

Ticker Nerd rank

FISN stock analysis: one number for the whole business

Consensus tells you what everyone already believes. The model scores Deep Fission, Inc. on its factor families — the same systematic rank behind the Ticker Nerd portfolio.

Where the model ranks itAs at 12 Sept 2026

3 / 100

Percentile across ~4,600 US stocks on Ticker Nerd’s systematic factor model. Higher is better. How the model is built and tested

Size

Accruals

Revisions

Value

Issuance

Quality

Growth

Volatility

Momentum

Size (55): Smaller than most of the companies we track.

Momentum (0): The shares have been drifting down relative to others.

Built and run by Aslam Ghouse, an ex-Goldman Sachs quant trader with fourteen years in markets.

Wall Street

FISN stock forecast 2026-2027: analyst price targets & predictions

The bullish and bearish analyst opinions on FISN, reported as data — targets and ratings, the market's view beside the model's.

Share price and the analyst range, since 18 June 2026Adjusted close, US dollars

Price targets and ratings are third-party analyst estimates, reported here as data. They are not Ticker Nerd forecasts, and they are frequently wrong.

Data provided by Twelve Data

What Wall Street says4 analysts

4 Buy0 Hold0 Sell

Low $17Median $19High $25

The green dot is the last close — the median target sits +165.4% from it.

Recent analyst actionsNewest first

Date	Firm	Action	Rating	Target
31 Aug 2026	Maxim Group	Initiates	Buy	$17
15 July 2026	Canaccord Genuity	Initiates	Buy	$18
15 July 2026	Canaccord Genuity	Initiates	Buy	—
13 July 2026	Benchmark	Initiates	Buy	$20
13 July 2026	Benchmark	Initiates	Buy	—

Price targets and ratings are third-party analyst estimates, reported here as data. They are not Ticker Nerd forecasts, and they are frequently wrong.

Market Radar

This page is one stock. Monday covers all of them.

Computed off the Friday close and sent before the US open.

Market Radar reports the week’s largest rank changes across roughly 4,600 US stocks, the factor behind each one, and where the market went. FISN appears on the weeks it earns a place.

Performance

FISN vs the S&P 500

Both lines are total return — dividends reinvested — so the comparison is honest on both sides.

FISN vs S&P 500, last 12 monthsTotal return, rebased to 100

Download this chart as an image — free to reuse; link this page as the source.

Data provided by Twelve Data

Estimates

FISN analyst estimate revisions

Not the forecast itself — the direction analysts are revising it. Revision direction is one of the model's factor families.

Which way the estimates are movingNext fiscal year

Analysts raising

Analysts cutting

Fundamentals

Deep Fission, Inc. (FISN) financial data

A margin means little on its own. Each bar marks where the figure sits across the whole US universe we score.

Valuation

Trailing P/E: −7.1×
Price / sales: —
Price / book: 4.3×
EV / EBITDA: −4.6×

Growth & margins

Revenue growth (YoY): —
Earnings growth (YoY): —
Gross margin: —
Operating margin: 0.0%
Net margin: 0.0%

Returns & dividend

Return on equity: −256.1%
Return on assets: −79.1%
Dividend yield: —

Bars mark the percentile across the ~4,600 US stocks Ticker Nerd covers, among those reporting the figure.

Key statistics

Deep Fission, Inc. (FISN) statistics: revenue, profit & scale

The headline figures, each with its date. Every row carries its own link — cite it straight from here.

Deep Fission, Inc. has a market value of $421.8M and an enterprise value of $328.8M.
Shares outstanding: 59.7M.
Trailing P/E: −7.1×; forward P/E: −5.3× — the forward figure prices analyst consensus estimates, not reported earnings.
Deep Fission, Inc. employs 51 people.

market figures as at 13 Sept 2026

Data provided by Twelve Data

Peers

FISN vs competitors

The nearest names by industry and size, scored by the same model — like for like.

Its peer group, ranked by the same modelSpecialty Industrial Machinery

Company	Market cap	TKN rank
FISNDeep Fission, Inc.	$421.8M	3
NPWRNET Power, Inc.	$429.3M	23
LXFRLuxfer Holdings PLC	$460.9M	80
GFUZGeneral Fusion Group Ltd.	$510.1M	7
RRRichtech Robotics, Inc.	$354.9M	15
TWINTwin Disc, Inc.	$353.1M	78
PKOHPark-Ohio Holdings Corp.	$669.1M	83

Look up any of the roughly 4,600 stocks we score.

The rank is the raw material. Whether the rules would actually own Deep Fission, Inc. — and when they’d sell — is the membership. See the Ticker Nerd 20 →

News

Latest FISN news & analysis

Deep Fission Installs and Retrieves Full-Scale Reactor Canister Using Off-the-Shelf Drilling Equipment

Business Wire · 10 Sept 2026positive

Deep Fission announced it successfully installed and retrieved a full-size prototype reactor canister from a borehole using standard commercial drilling equipment operated by a commercial crew, with no demonstration requiring newly invented equipment. The test took place as part of its development of small modular pressurized water reactors located a mile underground.

Why it matters — This demonstrates that the company's underground reactor concept is workable with off-the-shelf drilling technology, a meaningful technical milestone for FISN watchers tracking the project's feasibility.

Deep Fission Names ShawnTrell Scales as Its First Chief People Officer

Business Wire · 25 Aug 2026neutral

Deep Fission, Inc. announced the appointment of ShawnTrell Scales as its first Chief People Officer. She will lead the company's people strategy as it works to advance from first-of-a-kind demonstration to commercial deployment, bringing more than 20 years of leadership experience across the energy sector.

Why it matters — The appointment signals Deep Fission is building out its leadership team to support the transition from demonstration to commercial deployment of its small modular pressurized water reactors.

Deep Fission Targets 2027 Grid Power From First Underground Nuclear Reactor

MarketBeat · 19 Aug 2026positive

Deep Fission CEO Liz Muller said during a company presentation that the company targets commercial electricity generation from its first underground nuclear reactor in Parsons, Kansas, by the end of 2027.

Why it matters — This announcement gives FISN watchers a concrete timeline and location for the company's first commercial power output.

Deep Fission Targets 2027 Debut for Underground Nuclear Reactors

MarketBeat · 14 Aug 2026neutral

At Canaccord Genuity's 46th annual growth conference, Deep Fission Co-Founder and CEO Liz Muller outlined the company's underground approach to advanced nuclear power, with plans to place pressurized water reactors in boreholes roughly a mile below the surface and a target debut in 2027.

Why it matters — A FISN watcher would care because the CEO provided the latest details and a timeline for the company's underground reactor strategy, which is central to its business plan.

Department of Energy Approves Nuclear Safety Design Agreement for Deep Fission's Gravity™ Reactor, Designed to Convert to Commercial Operation

Business Wire · 6 Aug 2026positive

The U.S. Department of Energy has approved Deep Fission's Nuclear Safety Design Agreement for its Gravity™ Nuclear Reactor. The company said the approval marks a major regulatory milestone confirming that its reactor design warrants advancement under the program.

Why it matters — A FISN watcher would care because DOE approval of the Nuclear Safety Design Agreement moves Deep Fission's reactor design forward through the regulatory process toward potential commercial operation.

FAQ

Frequently asked questions about FISN stock

What is the FISN stock price forecast for 2026-2027?

The 4 Wall Street analysts covering Deep Fission, Inc. have a median 12-month price target of $19, with estimates ranging from $17 to $25. These are third-party analyst estimates, not Ticker Nerd forecasts, and they are frequently wrong.

Is FISN stock a buy right now?

Of the 4 analysts covering Deep Fission, Inc., 4 rate it a Buy, 0 a Hold and 0 a Sell. Ticker Nerd's systematic factor model ranks Deep Fission, Inc. 3 out of 100 across roughly 4,600 US stocks as at 12 Sept 2026. None of this is personal advice — it does not consider your circumstances.

How does Ticker Nerd's model rank FISN?

As at 12 Sept 2026, Deep Fission, Inc. ranks 3 out of 100 on Ticker Nerd's systematic factor model — a percentile across roughly 4,600 US stocks, built from its factor families. Its strongest factor family is Size (55 of 100).

Will FISN stock go up?

No one can know that. What the data says: the median 12-month target from 4 analysts implies +165.4% from the last close, and Ticker Nerd's factor model ranks Deep Fission, Inc. 3 out of 100 as at 12 Sept 2026. Analyst targets are third-party estimates and frequently wrong; none of this is personal advice.

What is the FISN stock forecast for 2030?

No analyst covering Deep Fission, Inc. publishes a 2030 price target — Wall Street targets run 12 to 18 months out. Sites quoting a 2030 price for FISN are extrapolating price history, which says nothing about the business. The furthest attributed numbers are the current analyst targets: $17 to $25 over the next 12 months.

What does Deep Fission, Inc. do?

Deep Fission Inc. is an advanced nuclear energy company focused on developing and deploying small modular pressurized water reactors designed to operate one mile underground.

What is the latest news on FISN?

The most recent item we track (Business Wire, 10 Sept 2026): "Deep Fission Installs and Retrieves Full-Scale Reactor Canister Using Off-the-Shelf Drilling Equipment". Deep Fission announced it successfully installed and retrieved a full-size prototype reactor canister from a borehole using standard commercial drilling equipment operated by a commercial crew, with no demonstration requiring newly invented equipment. The test took place as part of its development of small modular pressurized water reactors located a mile underground.

Company

About Deep Fission, Inc.

Deep Fission Inc. is an advanced nuclear energy company focused on developing and deploying small modular pressurized water reactors designed to operate one mile underground. The company’s reactor technology is intended to produce carbon-free electricity while supporting reliable power supply for onsite use and wholesale energy delivery. Deep Fission works across reactor design, licensing, and deployment services, with applications for utilities, data centers, heavy industry, government, the military, and large urban power users. Its business centers on compact underground reactor installations and related advisory and partnership support for implementation and operation. Based in Berkeley, California, Deep Fission Inc. positions itself within the clean-energy and independent power market through a nuclear platform aimed at scalable, site-flexible electricity generation.

CEO Ms. Elizabeth A. Muller · 51 employees · United States · https://deepfission.com