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.
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.
Lumen TechnologiesFRA:CYTH +2.38%55 ROC (Joel Greenblatt) % is 7.73% as of Mar. 2026, which is 171% above its 10-year median of 2.85. GuruFocus rates FRA:CYTH with a GF Score™ of 55/100 and a GF Value™ of €3.19 (Significantly Overvalued). The stock has 5 warning signs investors should review. Among 364 Telecommunication Services companies, Lumen Technologies ranks worse than 80.22% on this metric.
Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits). He defines ROC (Joel Greenblatt) % as EBIT divided by the total of Property, Plant and Equipment and net working capital. Lumen Technologies's annualized ROC (Joel Greenblatt) % for the quarter that ended in Mar. 2026 was 7.73%.
The historical rank and industry rank for Lumen Technologies's ROC (Joel Greenblatt) % or its related term are showing as below:
FRA:CYTH'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: -46.65 Med: 2.85 Max: 16.01
Current: -5.38
During the past 13 years, Lumen Technologies's highest ROC (Joel Greenblatt) % was 16.01%. The lowest was -46.65%. And the median was 2.85%.
FRA:CYTH's ROC (Joel Greenblatt) % is ranked worse than 80.22% of 364
companies
in the Telecommunication Services industry
Industry Median: 14.97
vs FRA:CYTH: -5.38
Lumen Technologies's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was 0.00% per year.
The way Joel Greenblatt defines Return on Capital is a more accurate measure of how efficiently the company generates returns onthe capital actually invested in the business. EBIT is used instead of net income because the tax and interest payment may be affected by factors other than the core business operation. Intangible assets are not included in the calculation because they don't need to be replaced.
Lumen Technologies ROC (Joel Greenblatt) % Related Terms
Lumen Technologies ROC (Joel Greenblatt) % Historical Data
* Premium members only.
The historical data trend for Lumen Technologies's ROC (Joel Greenblatt) % 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:CYTH vs GSAT, IRDM, LBRDA: ROC (Joel Greenblatt) % Comparison
For the Telecom Services subindustry, Lumen Technologies's ROC (Joel Greenblatt) %, along with its competitors' market caps and ROC (Joel Greenblatt) % 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.
Lumen Technologies ROC (Joel Greenblatt) % vs Telecommunication Services Industry
For the Telecommunication Services industry and Communication Services sector, Lumen Technologies's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Lumen Technologies's ROC (Joel Greenblatt) % falls into.
Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits) . He defines Return on Capital as follows:
EBIT stands for Earnings Before Interest and Taxes.
Fixed Assets are also known as non-current assets. They include the Property, Plant and Equipment that the firm needs in its operation.
GuruFocus calculates net working capital as: (Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Deferred Revenue + Other Current Liabilities). We're trying to account for OPERATING assets and liabilities (part of daily business) when calculating working capital. Cash and marketable securities are considered NON-OPERATING assets and are not included in calculation. We will also back out all interest bearing debt, short term debt and the portion of long term debt that is due in the current period from the current liabilities. This debt will be considered when computing cost of capital and it would be inappropriate to count it twice.
Note:
The EBIT data used here is four times the quarterly (Mar. 2026) EBIT data.
* 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.
What does a ROC (Joel Greenblatt) % of 7.73% mean?
Lumen Technologies (FRA:CYTH) has a ROC (Joel Greenblatt) % of 7.73% as of Mar. 2026. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Lumen Technologies and its competitors. This is 171% above median its historical median of 2.85. According to the industry distribution chart, Lumen Technologies ranks #292 out of 364 companies in the Telecommunication Services industry, placing it in the top 80.2%.
Is Lumen Technologies' ROC (Joel Greenblatt) % too high?
Lumen Technologies' current ROC (Joel Greenblatt) % of 7.73% is 171% above median its 10-year median of 2.85. The Telecommunication Services industry median ROC (Joel Greenblatt) % is 14.97. Lumen Technologies' value of 7.73% is 48.4% below this industry median. Based on the distribution chart, Lumen Technologies ranks #292 out of 364 companies in the Telecommunication Services industry, which is in the bottom quartile relative to peers. Overall, Lumen Technologies has a GF Score™ of 55/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Lumen Technologies' ROC (Joel Greenblatt) % compare to GSAT and IRDM?
According to the Telecommunication Services industry distribution chart, Lumen Technologies ranks #292 out of 364 companies for ROC (Joel Greenblatt) %. This places Lumen Technologies in the lower half of its industry. The industry median ROC (Joel Greenblatt) % is 14.97. Lumen Technologies' value of 7.73% is 48.4% below this benchmark. While the company's 10-year median is 2.85 vs. the industry median of 14.97, Lumen Technologies has consistently been below 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 ROC (Joel Greenblatt) % for a Telecommunication Services company?
The median ROC (Joel Greenblatt) % among Telecommunication Services companies is 14.97, based on 364 companies in the industry. Companies in the top quartile (top 25%) have a ROC (Joel Greenblatt) % significantly above this median, while those in the bottom quartile fall well below. However, ROC (Joel Greenblatt) % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Lumen Technologies's current ROC (Joel Greenblatt) % of 7.73% is 48.4% below 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 ROC (Joel Greenblatt) % mean?
A high ROC (Joel Greenblatt) % can signal that a stock is expensive relative to its fundamentals. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Lumen Technologies and its competitors. For the Telecommunication Services industry, the median ROC (Joel Greenblatt) % is 14.97 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Lumen Technologies's current ROC (Joel Greenblatt) % is 7.73%, which is 171% above median its own 10-year median of 2.85. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Lumen Technologies stock overvalued right now?
Based on GuruFocus' analysis, Lumen Technologies (FRA:CYTH) is currently considered Significantly Overvalued. The stock's GF Value™ is €3.19, compared to a current price of €5.60 — trading 75.5% above its estimated fair value. The current ROC (Joel Greenblatt) % is 7.73%, which is 171% above median its 10-year median of 2.85 and 48.4% below the Telecommunication Services industry median of 14.97. Lumen Technologies' overall GF Score™ is 55/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROC (Joel Greenblatt) % calculated?
ROC (Joel Greenblatt) % is calculated from a company's financial statements. For Lumen Technologies (FRA:CYTH), the current ROC (Joel Greenblatt) % is 7.73% 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 Lumen Technologies (FRA:CYTH) Overvalued in 2026?
Based on GuruFocus' analysis, Lumen Technologies stock appears to be overvalued.
The current stock price of €5.60 is trading 75.5% above its estimated GF Value™ of €3.19.
GuruFocus considers Lumen Technologies to be Significantly Overvalued.
Key valuation signals for FRA:CYTH:
ROC (Joel Greenblatt) %: 7.73% (171% above median its 10-year median of 2.85)
GF Value™: €3.19 vs. price of €5.60 (75.5% above fair value)
Industry Position: 48.4% below the Telecommunication Services median (#292 of 364)
No single metric tells the full story. See the FRA:CYTH stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Lumen Technologies is one of the largest telecommunications carriers serving global enterprises. The merger with Level 3 in 2017, the 2022 divestiture of much of its local phone business in rural areas, and the 2026 sale of its remaining consumer fiber network to AT&T have shifted the company's operations away from the legacy consumer business and toward enterprise services, which account for about 85%-90% of revenue. Lumen offers businesses a full suite of communications services, providing colocation and data center services, data transportation, phone service, and internet access.
55GF Score
Get the complete analysis for FRA:CYTH
ROC (Joel Greenblatt) % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
FRA:CYTH has been successfully added to your 
