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Lumen TechnologiesBSP:L1MN34 -1.57%48 Cyclically Adjusted PB Ratio is 0.46 as of Aug. 13, 2026, which is 7% above its 10-year median of 0.43. GuruFocus rates BSP:L1MN34 with a GF Score™ of 48/100 and a GF Value™ of R$22.02 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 289 Telecommunication Services companies, Lumen Technologies ranks better than 88.58% on this metric.
The historical rank and industry rank for Lumen Technologies's Cyclically Adjusted PB Ratio or its related term are showing as below:
BSP:L1MN34'
s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.05 Med: 0.43 Max: 0.94
Current: 0.46
During the past years, Lumen Technologies's highest Cyclically Adjusted PB Ratio was 0.94. The lowest was 0.05. And the median was 0.43.
BSP:L1MN34's Cyclically Adjusted PB Ratio is ranked better than 88.58% of 289
companies
in the Telecommunication Services industry
Industry Median: 1.77
vs BSP:L1MN34: 0.46
The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.
Lumen Technologies's adjusted book value per share data for the three months ended in Jun. 2026 was R$-7.402. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is R$71.43 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Lumen Technologies (BSP:L1MN34) Cyclically Adjusted PB Ratio Explanation
Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.
Lumen Technologies Cyclically Adjusted PB Ratio Related Terms
Lumen Technologies Cyclically Adjusted PB Ratio Historical Data
* Premium members only.
The historical data trend for Lumen Technologies's Cyclically Adjusted PB Ratio 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.
Lumen Technologies Cyclically Adjusted PB Ratio Chart
BSP:L1MN34 vs IRDM, LBRDA, TDS: Cyclically Adjusted PB Ratio Comparison
For the Telecom Services subindustry, Lumen Technologies's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB Ratio 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 Cyclically Adjusted PB Ratio vs Telecommunication Services Industry
For the Telecommunication Services industry and Communication Services sector, Lumen Technologies's Cyclically Adjusted PB Ratio distribution charts can be found below:
* The bar in red indicates where Lumen Technologies's Cyclically Adjusted PB Ratio falls into.
Lumen Technologies Cyclically Adjusted PB Ratio Calculation
Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.
Lumen Technologies's Cyclically Adjusted PB Ratio for today 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.
Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.
What does a Cyclically Adjusted PB Ratio of 0.46 mean?
Lumen Technologies (BSP:L1MN34) has a Cyclically Adjusted PB Ratio of 0.46 as of Aug. 13, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Lumen Technologies and its competitors. This is near median its historical median of 0.43. Over the past decade, Lumen Technologies' Cyclically Adjusted PB Ratio has ranged from 0.05 to 0.94. According to the industry distribution chart, Lumen Technologies ranks #33 out of 289 companies in the Telecommunication Services industry, placing it in the top 11.4%.
Is Lumen Technologies' Cyclically Adjusted PB Ratio too high?
Lumen Technologies' current Cyclically Adjusted PB Ratio of 0.46 is near median its 10-year median of 0.43. Over the past 10 years, this metric has ranged from a low of 0.05 to a high of 0.94. The Telecommunication Services industry median Cyclically Adjusted PB Ratio is 1.77. Lumen Technologies' value of 0.46 is 74% below this industry median. Based on the distribution chart, Lumen Technologies ranks #33 out of 289 companies in the Telecommunication Services industry, which is in the top quartile — a strong position relative to peers. Overall, Lumen Technologies has a GF Score™ of 48/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Lumen Technologies' Cyclically Adjusted PB Ratio compare to IRDM and LBRDA?
According to the Telecommunication Services industry distribution chart, Lumen Technologies ranks #33 out of 289 companies for Cyclically Adjusted PB Ratio. This places Lumen Technologies in the top 11% of its industry — outperforming the majority of peers. The industry median Cyclically Adjusted PB Ratio is 1.77. Lumen Technologies' value of 0.46 is 74% below this benchmark. Historically, Lumen Technologies' own Cyclically Adjusted PB Ratio has ranged from 0.05 to 0.94 over the past decade. While the company's 10-year median is 0.43 vs. the industry median of 1.77, 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 Cyclically Adjusted PB Ratio for a Telecommunication Services company?
The median Cyclically Adjusted PB Ratio among Telecommunication Services companies is 1.77, based on 289 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Lumen Technologies's current Cyclically Adjusted PB Ratio of 0.46 is 74% 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 Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Lumen Technologies and its competitors. For the Telecommunication Services industry, the median Cyclically Adjusted PB Ratio is 1.77 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Lumen Technologies's current Cyclically Adjusted PB Ratio is 0.46, which is near median its own 10-year median of 0.43. 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 (BSP:L1MN34) is currently considered Significantly Overvalued. The stock's GF Value™ is R$22.02, compared to a current price of R$32.68 — trading 48.4% above its estimated fair value. The current Cyclically Adjusted PB Ratio is 0.46, which is near median its 10-year median of 0.43 and 74% below the Telecommunication Services industry median of 1.77. Lumen Technologies' overall GF Score™ is 48/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For Lumen Technologies (BSP:L1MN34), the current Cyclically Adjusted PB Ratio is 0.46 as of Aug. 13, 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 (BSP:L1MN34) Overvalued in 2026?
Based on GuruFocus' analysis, Lumen Technologies stock appears to be overvalued.
The current stock price of R$32.68 is trading 48.4% above its estimated GF Value™ of R$22.02.
GuruFocus considers Lumen Technologies to be Significantly Overvalued.
Key valuation signals for BSP:L1MN34:
Cyclically Adjusted PB Ratio: 0.46 (near median its 10-year median of 0.43)
GF Value™: R$22.02 vs. price of R$32.68 (48.4% above fair value)
Industry Position: 74% below the Telecommunication Services median (#33 of 289)
No single metric tells the full story. See the BSP:L1MN34 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.
48GF Score
Get the complete analysis for BSP:L1MN34
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