FISN (Deep Fission) Operating Income: $ Mil (TTM As of Dec. 2025)

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FISN Deep Fission Inc FISN
13 GF Score
Price $12.11
! 1 Warning Sign
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What is Deep Fission Operating Income?

Deep Fission FISN +14.18% 13 Operating Income is $ Mil as of Dec. 2025. GuruFocus rates FISN with a GF Score™ of 13/100. The stock has 1 warning sign investors should review.

Deep Fission's Operating Income for the six months ended in Dec. 2025 was $-21.38 Mil.

Operating Margin % is calculated as Operating Income divided by its Revenue. Deep Fission's Operating Income for the six months ended in Dec. 2025 was $-21.38 Mil. Deep Fission's Revenue for the six months ended in Dec. 2025 was $0.00 Mil. Therefore, Deep Fission's Operating Margin % for the quarter that ended in Dec. 2025 was %.

Deep Fission's 5-Year average Growth Rate for Operating Margin % was 0.00% per year.

Operating Income or EBIT is linked to Return on Capital for both regular definition and Joel Greenblatt's definition. Deep Fission's annualized ROC % for the quarter that ended in Dec. 2025 was -2,165.47%. Deep Fission's annualized ROC (Joel Greenblatt) % for the quarter that ended in Dec. 2025 was -109,661.54%.

Deep Fission  (NAS:FISN) Operating Income Explanation

1. Operating Income or EBIT is linked to Return on Capital for both regular definition and Joel Greenblatt's definition.

Deep Fission's annualized ROC % for the quarter that ended in Dec. 2025 is calculated as:

ROC % (Q: Dec. 2025 )
=NOPAT/Average Invested Capital
=Operating Income * ( 1 - Tax Rate % )/( (Invested Capital (Q: Dec. 2024 ) + Invested Capital (Q: Dec. 2025 ))/ count )
=-21.384 * ( 1 - 0% )/( (0.036 + 1.939)/ 2 )
=-21.384/0.9875
=-2,165.47 %

where

Invested Capital(Q: Dec. 2024 )
=Total Assets - Accounts Payable & Accrued Expense - Excess Cash
=Total Assets - Accounts Payable & Accrued Expense - ( Cash, Cash Equivalents, Marketable Securities - max(0, Total Current Liabilities - Total Current Assets+Cash, Cash Equivalents, Marketable Securities))
=6.863 - 0.127 - ( 6.729 - max(0, 0.161 - 6.861+6.729))
=0.036

Invested Capital(Q: Dec. 2025 )
=Total Assets - Accounts Payable & Accrued Expense - Excess Cash
=Total Assets - Accounts Payable & Accrued Expense - ( Cash, Cash Equivalents, Marketable Securities - max(0, Total Current Liabilities - Total Current Assets+Cash, Cash Equivalents, Marketable Securities))
=24.691 - 0.723 - ( 23.719 - max(0, 2.404 - 24.433+23.719))
=1.939

Note: The Operating Income data used here is one times the annual (Dec. 2025) data.

2. Joel Greenblatt's definition of Return on Capital:

Deep Fission's annualized ROC (Joel Greenblatt) % for the quarter that ended in Dec. 2025 is calculated as:

ROC (Joel Greenblatt) %(Q: Dec. 2025 )
=EBIT/Average of (Net fixed Assets + Net Working Capital)
=EBIT/Average of (Property, Plant and Equipment+Net Working Capital)
     Q: Dec. 2024  Q: Dec. 2025
=EBIT/( ( (Property, Plant and Equipment + Net Working Capital) + (Property, Plant and Equipment + Net Working Capital) )/ count )
=-21.384/( ( (0.002 + max(-0.129, 0)) + (0.037 + max(-1.69, 0)) )/ 2 )
=-21.384/( ( 0.002 + 0.037 )/ 2 )
=-21.384/0.0195
=-109,661.54 %

where Working Capital is:

Working Capital(Q: Dec. 2024 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(0 + 0 + 0.032) - (0.127 + 0 + 0.034)
=-0.129

Working Capital(Q: Dec. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(0 + 0 + 0.714) - (0.723 + 0 + 1.681)
=-1.69

When net working capital is negative, 0 is used.

Note: The EBIT data used here is one times the annual (Dec. 2025) EBIT data.

3. Operating Income is also linked to Operating Margin %:

Deep Fission's Operating Margin % for the quarter that ended in Dec. 2025 is calculated as:

Operating Margin %=Operating Income (Q: Dec. 2025 )/Revenue (Q: Dec. 2025 )
=-21.384/0
= %

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

4. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Operating Income growth rate using Operating Income per share data.

Be Aware

Compared with a company's EBITDA margin, Operating Margin can be manipulated by adjusting the rate of depreciation, depletion and amortization (DDA).

If a company is facing competition, its Operating Margin may decline. Often the Operating Margin declines well before the company's revenue or even profit decline. Therefore, Operating Margin is a very important indicator of whether the company is facing problems.

For instance, by 2012, Nokia (NOK)'s problems were well known and its stock had lost more than 90% of its market value since 2007. But Nokia's Operating Margin had already been in decline since 2002, although its earnings per share were still rising. Investors who paid attention to Operating Margin would have avoided this huge loss. The same can be said for Research-in-Motion (RIMM).

Therefore, Operating Margin is a very important screening filter for GuruFocus. GuruFocus's Buffett-Munger screener requires that the profit margin is either consistent or expanding. The Model Portfolio of the Buffett-Munger screener has outperformed the market every year since inception in 2009.

Deep Fission Operating Income Related Terms

Deep Fission Operating Income Historical Data

* Premium members only.

The historical data trend for Deep Fission's Operating Income can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Deep Fission Operating Income Chart

Deep Fission Annual Data
Trend Dec24 Dec25
Operating Income
-4.10 -21.38

Deep Fission Semi-Annual Data
Dec24 Dec25
Operating Income -4.10 -21.38
FISN
13GF Score
Deep Fission Inc FISN
Operating Income is just one metric. See GF Score™, valuation, warning signs, and more.
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Deep Fission Operating Income Calculation

Operating Income, is the profit a company earned through operations. All expenses, including cash expenses such as cost of goods sold (COGS), research & development, wages, and non-cash expenses, such as depreciation, depletion and amortization, have been deducted from the sales.

For stock reported annually, GuruFocus uses latest annual data as the TTM data. Operating Income for the trailing twelve months (TTM) ended in Dec. 2025 was $ Mil.

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Frequently Asked Questions Learn more about Operating Income →
What does a Operating Income of $ Mil mean?
Deep Fission (FISN) has a Operating Income of $ Mil as of Dec. 2025. Operating Income equals sales less all operating expenses. It is linked to EBIT. View historical data on Deep Fission and its competitors.
Is Deep Fission's Operating Income too high?
Deep Fission's current Operating Income is $ Mil. Overall, Deep Fission has a GF Score™ of 13/100, reflecting its overall financial health beyond just this single metric.
How does Deep Fission's Operating Income compare to EROC and PKOH?
Deep Fission's Operating Income of $ Mil can be compared against companies in the Industrial Products industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Operating Income for an Industrial Products company?
A good Operating Income depends on the Industrial Products industry context. However, Operating Income should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Operating Income mean?
A high Operating Income can signal that a stock is expensive relative to its fundamentals. Operating Income equals sales less all operating expenses. It is linked to EBIT. View historical data on Deep Fission and its competitors. Deep Fission's current Operating Income is $ Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Deep Fission stock overvalued right now?
Deep Fission (FISN) has a current Operating Income of $ Mil. The current Operating Income is $ Mil. Deep Fission's overall GF Score™ is 13/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Operating Income calculated?
Operating Income is calculated from a company's financial statements. For Deep Fission (FISN), the current Operating Income is $ Mil as of Dec. 2025. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Deep Fission Business Description

Other Exchanges I18:Germany
Address 2001 Addison Street, Suite 300, Berkeley, CA, USA, 94704
Deep Fission Inc is a nuclear energy technology company developing a small modular reactor based on established pressurized water reactor technology, with novel emplacement in deep boreholes approximately one mile below the Earth's surface. Its reactor, which is referred to as the Gravity Reactor, will leverage subsurface conditions to support key containment and operating functions, including the use of hydrostatic pressure from a water column within the borehole to support reactor operating pressure and cooling, and the surrounding geological formation to provide structural confinement and shielding. The group's focus is within the United States, where electricity demand growth, expanding digital infrastructure, and evolving energy policy.
13GF Score

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Operating Income is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$12.11
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