Adtran HoldingsFRA:ATN -3.21%62 Piotroski F-Score is 5 as of Jun. 26, 2026, which is 25% above its 10-year median of 4.00. GuruFocus rates FRA:ATN with a GF Score™ of 62/100 and a GF Value™ of €7.82 (Significantly Overvalued). The stock has 6 warning signs investors should review. Among 2,426 Hardware companies, Adtran Holdings ranks better than 59.56% on this metric.
The zones of discrimination were as such:
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Adtran Holdings has an F-score of 5 indicating the company's financial situation is typical for a stable company.
The historical rank and industry rank for Adtran Holdings's Piotroski F-Score or its related term are showing as below:
FRA:ATN'
s Piotroski F-Score Range Over the Past 10 Years
Min: 1 Med: 4 Max: 7
Current: 5
During the past 13 years, the highest Piotroski F-Score of Adtran Holdings was 7. The lowest was 1. And the median was 4.
The developer of the system is Joseph D. Piotroski is relatively unknown accounting professor who shuns publicity and rarely gives interviews.
He graduated from the University of Illinois with a B.S. in accounting in 1989, received an M.B.A. from Indiana University in 1994. Five years later, in 1999, after earning a Ph.D. in accounting from the University of Michigan, he became an associate professor of accounting at the University of Chicago.
He wanted to see if he can develop a system (using a simple nine-point scoring system) that can increase the returns of a strategy of investing in low price to book (referred to in the paper as high book to market) value companies.
What he found was something that exceeded his most optimistic expectations.
Buying only those companies that scored highest (8 or 9) on his nine-point scale, or F-Score as he called it, over the 20 year period from 1976 to 1996 led to an average out-performance over the market of 13.4%.
Even more impressive were the results of a strategy of investing in the highest F-Score companies (8 or 9) and shorting companies with the lowest F-Score (0 or 1).
Over the same period from 1976 to 1996 (20 years) this strategy led to an average yearly return of 23%, substantially outperforming the average S&P 500 index return of 15.83% over the same period.
Adtran Holdings Piotroski F-Score Related Terms
Adtran Holdings Piotroski F-Score Historical Data
* Premium members only.
The historical data trend for Adtran Holdings's Piotroski F-Score 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.
FRA:ATN vs GILT, HLIT, FEIM: Piotroski F-Score Comparison
For the Communication Equipment subindustry, Adtran Holdings's Piotroski F-Score, along with its competitors' market caps and Piotroski F-Score 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 Holdings Piotroski F-Score vs Hardware Industry
For the Hardware industry and Technology sector, Adtran Holdings's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where Adtran Holdings's Piotroski F-Score 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.
*Note: If the latest quarterly/semi-annual/annual total assets data is 0, then we will use previous quarterly/semi-annual/annual data for all the items in the balance sheet.
Profitability
Question 1. Return on Assets (ROA)
Net income before extraordinary items for the year divided by Total Assets at the beginning of the year.
Score 1 if positive, 0 if negative.
Adtran Holdings's current Net Income (TTM) was -30.8.
==> Negative ==> Score 0.
Question 2. Cash Flow Return on Assets (CFROA)
Net cash flow from operating activities (operating cash flow) divided by Total Assets at the beginning of the year.
Adtran Holdings's return on assets of this year was -0.02504003. Adtran Holdings's return on assets of last year was -0.10694015.
==> This year is higher. ==> Score 1.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
Adtran Holdings's gearing of this year was 0.19613249. Adtran Holdings's gearing of last year was 0.17410848.
==> Last year is lower than this year ==> Score 0.
Question 6. Change in Working Capital (Liquidity)
Compare this year's current ratio (current assets divided by current liabilities) to last year's current ratio.
Score 1 if this year's current ratio is higher, 0 if it's lower
Adtran Holdings's current ratio of this year was 1.76560363. Adtran Holdings's current ratio of last year was 2.46496138.
==> Last year's current ratio is higher ==> Score 0.
Question 7. Change in Shares in Issue
Compare the number of shares in issue this year, to the number in issue last year.
Score 0 if there is larger number of shares in issue this year, 1 otherwise.
Adtran Holdings's number of shares in issue this year was 80.321. Adtran Holdings's number of shares in issue last year was 79.534.
==> There is larger number of shares in issue this year. ==> Score 0.
Efficiency
Question 8. Change in Gross Margin
Compare this year's gross margin (Gross Profit divided by sales) to last year's.
Score 1 if this year's gross margin is higher, 0 if it's lower.
Adtran Holdings's gross margin of this year was 0.38564669. Adtran Holdings's gross margin of last year was 0.36963047.
==> This year's gross margin is higher. ==> Score 1.
Question 9. Change in asset turnover
Compare this year's asset turnover (total sales for the year divided by total assets at the beginning of the year) to last year's asset turnover ratio.
Score 1 if this year's asset turnover ratio is higher, 0 if it's lower
Adtran Holdings's asset turnover of this year was 0.78510038. Adtran Holdings's asset turnover of last year was 0.7172077.
==> This year's asset turnover is higher. ==> Score 1.
Evaluation
Piotroski F-Score
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Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Adtran Holdings has an F-score of 5 indicating the company's financial situation is typical for a stable company.
Adtran Holdings (FRA:ATN) has a Piotroski F-Score of 5 as of Jun. 26, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Adtran Holdings and its competitors. This is 25% above median its historical median of 4.00. Over the past decade, Adtran Holdings' Piotroski F-Score has ranged from 1.00 to 7.00. According to the industry distribution chart, Adtran Holdings ranks #981 out of 2426 companies in the Hardware industry, placing it in the top 40.4%.
Is Adtran Holdings' Piotroski F-Score too high?
Adtran Holdings' current Piotroski F-Score of 5 is 25% above median its 10-year median of 4.00. Over the past 10 years, this metric has ranged from a low of 1.00 to a high of 7.00. The Hardware industry median Piotroski F-Score is 5.00. Adtran Holdings' value of 5 is 0% at this industry median. Based on the distribution chart, Adtran Holdings ranks #981 out of 2426 companies in the Hardware industry, which is above the industry midpoint. Overall, Adtran Holdings has a GF Score™ of 62/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Adtran Holdings' Piotroski F-Score compare to GILT and HLIT?
According to the Hardware industry distribution chart, Adtran Holdings ranks #981 out of 2426 companies for Piotroski F-Score. This puts Adtran Holdings in the upper half of its industry. The industry median Piotroski F-Score is 5.00. Adtran Holdings' value of 5 is 0% at this benchmark. Historically, Adtran Holdings' own Piotroski F-Score has ranged from 1.00 to 7.00 over the past decade. While the company's 10-year median is 4.00 vs. the industry median of 5.00, Adtran Holdings has consistently been at 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 Piotroski F-Score for a Hardware company?
The median Piotroski F-Score among Hardware companies is 5.00, based on 2,426 companies in the industry. Companies in the top quartile (top 25%) have a Piotroski F-Score significantly above this median, while those in the bottom quartile fall well below. However, Piotroski F-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Adtran Holdings's current Piotroski F-Score of 5 is 0% at 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 Piotroski F-Score mean?
A high Piotroski F-Score can signal that a stock is expensive relative to its fundamentals. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Adtran Holdings and its competitors. For the Hardware industry, the median Piotroski F-Score is 5.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Adtran Holdings's current Piotroski F-Score is 5, which is 25% above median its own 10-year median of 4.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Adtran Holdings stock overvalued right now?
Based on GuruFocus' analysis, Adtran Holdings (FRA:ATN) is currently considered Significantly Overvalued. The stock's GF Value™ is €7.82, compared to a current price of €12.25 — trading 56.6% above its estimated fair value. The current Piotroski F-Score is 5, which is 25% above median its 10-year median of 4.00 and 0% at the Hardware industry median of 5.00. Adtran Holdings' overall GF Score™ is 62/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Piotroski F-Score calculated?
Piotroski F-Score is calculated from a company's financial statements. For Adtran Holdings (FRA:ATN), the current Piotroski F-Score is 5 as of Jun. 26, 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 Adtran Holdings (FRA:ATN) Overvalued in 2026?
Based on GuruFocus' analysis, Adtran Holdings stock appears to be overvalued.
The current stock price of €12.25 is trading 56.6% above its estimated GF Value™ of €7.82.
GuruFocus considers Adtran Holdings to be Significantly Overvalued.
Key valuation signals for FRA:ATN:
Piotroski F-Score: 5 (25% above median its 10-year median of 4.00)
GF Value™: €7.82 vs. price of €12.25 (56.6% above fair value)
Industry Position: 0% at the Hardware median (#981 of 2426)
No single metric tells the full story. See the FRA:ATN stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Adtran Holdings Inc is a provider of networking and communications platforms, software, and services focused on the broadband access market. It operates under two reportable segments: Network Solutions segment, which includes hardware and software products that enable a digital future that supports the company's Subscriber, Access & Aggregation, and Optical Networking Solutions; and Services & Support segment, which includes network design, implementation, maintenance and cloud-hosted services supporting the company's Subscriber, Access & Aggregation, and Optical Networking Solutions. It generates the majority of its revenue from the Network Solutions segment.
62GF Score
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