Terna SpAMIL:TRN -1.55%86 Days Inventory is 117.35 as of Mar. 2026, which is 6% above its 10-year median of 111.08. GuruFocus rates MIL:TRN with a GF Score™ of 86/100 and a GF Value™ of €9.88 (Fairly Valued). The stock has 3 warning signs investors should review. Among 453 Utilities - Regulated companies, Terna SpA ranks worse than 91.17% on this metric.
Days Inventory is also known as Days Sales of Inventory (DSI). Terna SpA's Average Total Inventories for the
three
months ended in Mar. 2026 was €128 Mil. Terna SpA's Cost of Goods Sold for the
three
months ended in Mar. 2026 was €99 Mil.
Hence, Terna SpA's Days Inventory for the
three
months ended in Mar. 2026 was 117.35.
The historical rank and industry rank for Terna SpA's Days Inventory or its related term are showing as below:
MIL:TRN'
s Days Inventory Range Over the Past 10 Years
Min: 28.86 Med: 111.08 Max: 146.08
Current: 135.11
During the past 13 years, Terna SpA's highest Days Inventory was 146.08. The lowest was 28.86. And the median was 111.08.
MIL:TRN's Days Inventory is ranked worse than 91.17% of 453
companies
in the Utilities - Regulated industry
Industry Median: 22.51
vs MIL:TRN: 135.11
Terna SpA's Days Inventory
declined
from Mar. 2025 (123.42) to Mar. 2026 (117.35).
Inventory Turnover measures how fast the company turns over its inventory within a year.
Terna SpA's Inventory Turnover for the
three
months ended in Mar. 2026 was 0.78.
Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.
Terna SpA's Inventory-to-Revenue for the
three
months ended in Mar. 2026 was 0.13.
Terna SpA (MIL:TRN) Days Inventory Explanation
Days Inventory indicates the liquidity of the inventory. Generally, a lower Days Inventory is preferred as it indicates a shorter duration to clear off the inventory. An increase of the ratio may indicate the company's sales slowed. Similar ratios related to Days Inventory are:
1. Inventory Turnover measures how fast the company turns over its inventory within a year.
Terna SpA's Inventory Turnover for the
three
months ended in Mar. 2026 is calculated as
2. Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.
Terna SpA's Inventory to Revenue for the
three
months ended in Mar. 2026 is calculated as
* 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.
Be Aware
A lot of business are seasonable. It makes more sense to compare Days Inventory from the same period in the previous year instead of from the previous quarter.
Terna SpA Days Inventory Related Terms
Terna SpA Days Inventory Historical Data
* Premium members only.
The historical data trend for Terna SpA's Days Inventory 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.
MIL:TRN vs NEE, SO, DUK: Days Inventory Comparison
For the Utilities - Regulated Electric subindustry, Terna SpA's Days Inventory, along with its competitors' market caps and Days Inventory data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Terna SpA Days Inventory vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, Terna SpA's Days Inventory distribution charts can be found below:
* The bar in red indicates where Terna SpA's Days Inventory falls into.
* 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 (MIL:TRN) has a Days Inventory of 117.35 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Terna SpA and its competitors. This is near median its historical median of 111.08. Over the past decade, Terna SpA's Days Inventory has ranged from 28.86 to 146.08. According to the industry distribution chart, Terna SpA ranks #413 out of 453 companies in the Utilities - Regulated industry, placing it in the top 91.2%.
Is Terna SpA's Days Inventory too high?
Terna SpA's current Days Inventory of 117.35 is near median its 10-year median of 111.08. Over the past 10 years, this metric has ranged from a low of 28.86 to a high of 146.08. The Utilities - Regulated industry median Days Inventory is 22.51. Terna SpA's value of 117.35 is 421.3% above this industry median. Based on the distribution chart, Terna SpA ranks #413 out of 453 companies in the Utilities - Regulated industry, which is in the bottom quartile relative to peers. Overall, Terna SpA has a GF Score™ of 86/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Terna SpA's Days Inventory compare to NEE and SO?
According to the Utilities - Regulated industry distribution chart, Terna SpA ranks #413 out of 453 companies for Days Inventory. This places Terna SpA in the lower half of its industry. The industry median Days Inventory is 22.51. Terna SpA's value of 117.35 is 421.3% above this benchmark. Historically, Terna SpA's own Days Inventory has ranged from 28.86 to 146.08 over the past decade. While the company's 10-year median is 111.08 vs. the industry median of 22.51, Terna SpA has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Days Inventory for an Utilities - Regulated company?
The median Days Inventory among Utilities - Regulated companies is 22.51, based on 453 companies in the industry. Companies in the top quartile (top 25%) have a Days Inventory significantly above this median, while those in the bottom quartile fall well below. However, Days Inventory should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Terna SpA's current Days Inventory of 117.35 is 421.3% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Days Inventory mean?
A high Days Inventory can signal that a stock is expensive relative to its fundamentals. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Terna SpA and its competitors. For the Utilities - Regulated industry, the median Days Inventory is 22.51 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Terna SpA's current Days Inventory is 117.35, which is near median its own 10-year median of 111.08. 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 (MIL:TRN) is currently considered Fairly Valued. The stock's GF Value™ is €9.88, compared to a current price of €10.14 — trading 2.6% above its estimated fair value. The current Days Inventory is 117.35, which is near median its 10-year median of 111.08 and 421.3% above the Utilities - Regulated industry median of 22.51. Terna SpA's overall GF Score™ is 86/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Days Inventory calculated?
Days Inventory is calculated from a company's financial statements. For Terna SpA (MIL:TRN), the current Days Inventory is 117.35 as of Mar. 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 (MIL:TRN) Overvalued in 2026?
Based on GuruFocus' analysis, Terna SpA stock appears to be overvalued.
The current stock price of €10.14 is trading 2.6% above its estimated GF Value™ of €9.88.
GuruFocus considers Terna SpA to be Fairly Valued.
Key valuation signals for MIL:TRN:
Days Inventory: 117.35 (near median its 10-year median of 111.08)
GF Value™: €9.88 vs. price of €10.14 (2.6% above fair value)
Industry Position: 421.3% above the Utilities - Regulated median (#413 of 453)
No single metric tells the full story. See the MIL:TRN stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
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.
86GF Score
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