Adtran Networks SEADVOF 55 Days Inventory is 96.73 as of Dec. 2025, which is 1% below its 10-year median of 97.76. GuruFocus rates ADVOF with a GF Score™ of 55/100 and a GF Value™ of $21.22. The stock has 4 warning signs investors should review. Among 2,415 Hardware companies, Adtran Networks SE ranks worse than 55.2% on this metric.
The historical rank and industry rank for Adtran Networks SE's Days Inventory or its related term are showing as below:
ADVOF'
s Days Inventory Range Over the Past 10 Years
Min: 75.55 Med: 97.76 Max: 127.64
Current: 103.96
During the past 13 years, Adtran Networks SE's highest Days Inventory was 127.64. The lowest was 75.55. And the median was 97.76.
ADVOF's Days Inventory is ranked worse than 55.2% of 2415
companies
in the Hardware industry
Industry Median: 94.29
vs ADVOF: 103.96
Adtran Networks SE's Days Inventory
declined
from Dec. 2024 (121.58) to Dec. 2025 (96.73).
Inventory Turnover measures how fast the company turns over its inventory within a year.
Adtran Networks SE's Inventory Turnover for the
six
months ended in Dec. 2025 was 1.89.
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.
Adtran Networks SE's Inventory-to-Revenue for the
six
months ended in Dec. 2025 was 0.35.
Adtran Networks SE (OTCPK:ADVOF) 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.
Adtran Networks SE's Inventory Turnover for the
six
months ended in Dec. 2025 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.
Adtran Networks SE's Inventory to Revenue for the
six
months ended in Dec. 2025 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.
Adtran Networks SE Days Inventory Related Terms
Adtran Networks SE Days Inventory Historical Data
* Premium members only.
The historical data trend for Adtran Networks SE'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.
ADVOF vs CSCO, CIEN, MSI: Days Inventory Comparison
For the Communication Equipment subindustry, Adtran Networks SE'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.
Adtran Networks SE Days Inventory vs Hardware Industry
For the Hardware industry and Technology sector, Adtran Networks SE's Days Inventory distribution charts can be found below:
* The bar in red indicates where Adtran Networks SE'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.
Adtran Networks SE (ADVOF) has a Days Inventory of 96.73 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Adtran Networks SE and its competitors. This is near median its historical median of 97.76. Over the past decade, Adtran Networks SE's Days Inventory has ranged from 75.55 to 127.64. According to the industry distribution chart, Adtran Networks SE ranks #1333 out of 2415 companies in the Hardware industry, placing it in the top 55.2%.
Is Adtran Networks SE's Days Inventory too high?
Adtran Networks SE's current Days Inventory of 96.73 is near median its 10-year median of 97.76. Over the past 10 years, this metric has ranged from a low of 75.55 to a high of 127.64. The Hardware industry median Days Inventory is 94.29. Adtran Networks SE's value of 96.73 is 2.6% above this industry median. Based on the distribution chart, Adtran Networks SE ranks #1333 out of 2415 companies in the Hardware industry, which is below the industry midpoint. Overall, Adtran Networks SE has a GF Score™ of 55/100, reflecting its overall financial health beyond just this single metric.
How does Adtran Networks SE's Days Inventory compare to CSCO and CIEN?
According to the Hardware industry distribution chart, Adtran Networks SE ranks #1333 out of 2415 companies for Days Inventory. This places Adtran Networks SE in the lower half of its industry. The industry median Days Inventory is 94.29. Adtran Networks SE's value of 96.73 is 2.6% above this benchmark. Historically, Adtran Networks SE's own Days Inventory has ranged from 75.55 to 127.64 over the past decade. While the company's 10-year median is 97.76 vs. the industry median of 94.29, Adtran Networks SE 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 a Hardware company?
The median Days Inventory among Hardware companies is 94.29, based on 2,415 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. Adtran Networks SE's current Days Inventory of 96.73 is 2.6% 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 Adtran Networks SE and its competitors. For the Hardware industry, the median Days Inventory is 94.29 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Adtran Networks SE's current Days Inventory is 96.73, which is near median its own 10-year median of 97.76. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Adtran Networks SE stock overvalued right now?
Adtran Networks SE (ADVOF) has a current Days Inventory of 96.73. The stock's GF Value™ is $21.22, compared to a current price of $24.19 — trading 14% above its estimated fair value. The current Days Inventory is 96.73, which is near median its 10-year median of 97.76 and 2.6% above the Hardware industry median of 94.29. Adtran Networks SE's overall GF Score™ is 55/100 with 4 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 Adtran Networks SE (ADVOF), the current Days Inventory is 96.73 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.
Is Adtran Networks SE (ADVOF) Overvalued in 2026?
Based on GuruFocus' analysis, Adtran Networks SE stock appears to be overvalued.
The current stock price of $24.19 is trading 14% above its estimated GF Value™ of $21.22.
Key valuation signals for ADVOF:
Days Inventory: 96.73 (near median its 10-year median of 97.76)
GF Value™: $21.22 vs. price of $24.19 (14% above fair value)
Industry Position: 2.6% above the Hardware median (#1333 of 2415)
No single metric tells the full story. See the ADVOF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Adtran Networks SE develops, manufactures, and sells optical and Ethernet-based networking solutions to telecommunications carriers and enterprises to deliver data, storage, voice, and video services. Company segment includes: Network Solutions; and Services and Support,These systems are used by telecommunications service providers, private companies, universities, and government agencies. Some of its product categories are Open optical transport, Packet edge and aggregation, Disaggregated networking, Network virtualization, Network infrastructure assurance, and Automated network management. ADVA's geographical segments are United States, United Kingdom, Germany and Other international generating key revenue from United States.
55GF Score
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