TERRF (Terna SpA) Operating Income: $1,108 Mil (TTM As of Jun. 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

TERRF Terna SpA TERRF
85 GF Score
Price $10.95
GF Value $15.06
Valuation Modestly Undervalued
! 2 Warning Signs
View Full Analysis

What is Terna SpA Operating Income?

Terna SpA TERRF 85 Operating Income is $1,108 Mil as of Jun. 2026. GuruFocus rates TERRF with a GF Score™ of 85/100 and a GF Value™ of $15.06 (Modestly Undervalued). The stock has 2 warning signs investors should review.

Terna SpA's Operating Income for the six months ended in Jun. 2026 was $560 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Jun. 2026 was $1,108 Mil.

Operating Margin % is calculated as Operating Income divided by its Revenue. Terna SpA's Operating Income for the six months ended in Jun. 2026 was $560 Mil. Terna SpA's Revenue for the six months ended in Jun. 2026 was $1,258 Mil. Therefore, Terna SpA's Operating Margin % for the quarter that ended in Jun. 2026 was 44.51%.

Terna SpA's 5-Year average Growth Rate for Operating Margin % was -0.10% per year.

Operating Income or EBIT is linked to Return on Capital for both regular definition and Joel Greenblatt's definition. Terna SpA's annualized ROC % for the quarter that ended in Jun. 2026 was 2.52%. Terna SpA's annualized ROC (Joel Greenblatt) % for the quarter that ended in Jun. 2026 was 4.97%.


Terna SpA  (OTCPK:TERRF) Operating Income Explanation

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

Terna SpA's annualized ROC % for the quarter that ended in Jun. 2026 is calculated as:

ROC % (Q: Jun. 2026 )
=NOPAT/Average Invested Capital
=Operating Income * ( 1 - Tax Rate % )/( (Invested Capital (Q: Dec. 2025 ) + Invested Capital (Q: Jun. 2026 ))/ count )
=1119.586 * ( 1 - 31.98% )/( (30576.58 + 29853.687)/ 2 )
=761.5423972/30215.1335
=2.52 %

where

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))
=35108.665 - 5175.176 - ( 3014.988 - max(0, 7884.075 - 7240.984+3014.988))
=30576.58

Invested Capital(Q: Jun. 2026 )
=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))
=35153.226 - 5551.613 - ( 2627.419 - max(0, 7072.235 - 6820.161+2627.419))
=29853.687

Note: The Operating Income data used here is two times the semi-annual (Jun. 2026) data.

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

Terna SpA's annualized ROC (Joel Greenblatt) % for the quarter that ended in Jun. 2026 is calculated as:

ROC (Joel Greenblatt) %(Q: Jun. 2026 )
=EBIT/Average of (Net fixed Assets + Net Working Capital)
=EBIT/Average of (Property, Plant and Equipment+Net Working Capital)
     Q: Dec. 2025  Q: Jun. 2026
=EBIT/( ( (Property, Plant and Equipment + Net Working Capital) + (Property, Plant and Equipment + Net Working Capital) )/ count )
=1273.042/( ( (25368.97 + max(-1980.679, 0)) + (25901.382 + max(-2383.871, 0)) )/ 2 )
=1273.042/( ( 25368.97 + 25901.382 )/ 2 )
=1273.042/25635.176
=4.97 %

where Working Capital is:

Working Capital(Q: Dec. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(3601.405 + 149.532 + 236.183) - (5175.176 + 0 + 792.623)
=-1980.679

Working Capital(Q: Jun. 2026 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(3513.479 + 167.396 + 251.383) - (5551.613 + 0 + 764.516)
=-2383.871

When net working capital is negative, 0 is used.

Note: The EBIT data used here is two times the semi-annual (Jun. 2026) EBIT data.

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

Terna SpA's Operating Margin % for the quarter that ended in Jun. 2026 is calculated as:

Operating Margin %=Operating Income (Q: Jun. 2026 )/Revenue (Q: Jun. 2026 )
=559.793/1257.604
=44.51 %

* 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.


Terna SpA Operating Income Related Terms


Terna SpA Operating Income Historical Data

* Premium members only.

The historical data trend for Terna SpA'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.

Terna SpA Operating Income Chart

Terna SpA Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Operating Income
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1,310.51 1,379.87 1,462.92 1,783.25 2,126.70

Terna SpA Semi-Annual Data
Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25 Jun26
Operating Income Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 434.55 467.23 534.37 548.48 559.79
TERRF
85GF Score
Terna SpA TERRF
Operating Income is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Terna SpA 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.

Operating Income for the trailing twelve months (TTM) ended in Jun. 2026 adds up the semi-annually data reported by the company within the most recent 12 months, which was $1,108 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 $1,108 Mil mean?
Terna SpA (TERRF) has a Operating Income of $1,108 Mil as of Jun. 2026. Operating Income equals sales less all operating expenses. It is linked to EBIT. View historical data on Terna SpA and its competitors.
Is Terna SpA's Operating Income too high?
Terna SpA's current Operating Income is $1,108 Mil. Overall, Terna SpA has a GF Score™ of 85/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Terna SpA's Operating Income compare to NEE and SO?
Terna SpA's Operating Income of $1,108 Mil can be compared against companies in the Utilities - Regulated 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 Utilities - Regulated company?
A good Operating Income depends on the Utilities - Regulated 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 Terna SpA and its competitors. Terna SpA's current Operating Income is $1,108 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Terna SpA stock overvalued right now?
Based on GuruFocus' analysis, Terna SpA (TERRF) is currently considered Modestly Undervalued. The stock's GF Value™ is $15.06, compared to a current price of $10.95 — trading 27.3% below its estimated fair value. The current Operating Income is $1,108 Mil. Terna SpA's overall GF Score™ is 85/100 with 2 warning signs 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 Terna SpA (TERRF), the current Operating Income is $1,108 Mil as of Jun. 2026. 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.

Is Terna SpA (TERRF) Overvalued in 2026?

Based on GuruFocus' analysis, Terna SpA stock appears to be undervalued. The current stock price of $10.95 is trading 27.3% below its estimated GF Value™ of $15.06. GuruFocus considers Terna SpA to be Modestly Undervalued.

Key valuation signals for TERRF:

  • Operating Income: $1,108 Mil
  • GF Value™: $15.06 vs. price of $10.95 (27.3% below fair value)
  • GF Score™: 85/100 with 2 warning signs

No single metric tells the full story. See the TERRF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Terna SpA Business Description

Address Viale Egidio Galbani 70, Rome, ITA, 00156
Terna SpA is an electricity transmission system operator that owns virtually all of the Italian National Transmission Grid. With a monopoly under an Italian government license, Terna transmits and dispatches electricity throughout the country. It is also responsible for the planning, construction, and maintenance of the nation's electrical grid. Terna segments its operations into its Regulated Activities, Non-Regulated Activities, and International Activities. The company generates the vast majority of its revenue from charging transmission fees as a part of its Regulated Activities. Under its Non-Regulated Activities, Terna mainly produces and sells electricity transformers. The company has also made efforts to expand its operations into Italy's neighboring countries and North Africa.
85GF Score

Get the complete analysis for TERRF

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

$10.95
Price
$15.06
GF Value