plenum AGFRA:PLEK -1.33%62 PB Ratio is 1.47 as of Jul. 07, 2026, which is 46% below its 10-year median of 2.74. GuruFocus rates FRA:PLEK with a GF Score™ of 62/100 and a GF Value™ of €5.96 (Possible Value Trap). The stock has 3 warning signs investors should review. Among 1,047 Business Services companies, plenum AG ranks better than 60.46% on this metric.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. As of today (2026-07-07), plenum AG's share price is €2.96. plenum AG's Book Value per Share for the quarter that ended in Dec. 2025 was €2.01. Hence, plenum AG's PB Ratio of today is 1.47.
Good Sign:
plenum AG stock PB Ratio (=1.43) is close to 10-year low of 1.43.
The historical rank and industry rank for plenum AG's PB Ratio or its related term are showing as below:
FRA:PLEK'
s PB Ratio Range Over the Past 10 Years
Min: 1.43 Med: 2.74 Max: 8.31
Current: 1.49
During the past 13 years, plenum AG's highest PB Ratio was 8.31. The lowest was 1.43. And the median was 2.74.
FRA:PLEK's PB Ratio is ranked better than 60.46% of 1047
companies
in the Business Services industry
Industry Median: 1.66
vs FRA:PLEK: 1.49
During the past 12 months, plenum AG's average Book Value Per Share Growth Rate was -39.10% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -11.10% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 1.60% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 22.00% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of plenum AG was 78.90% per year. The lowest was -37.40% per year. And the median was 10.30% per year.
The PB Ratio works the best for the businesses that earn most of their profit from their assets, e.g. banks and insurance companies.
Be Aware
Some businesses have very light assets, such as software companies or insurance agencies. The PB Ratio does not work well for these companies. Some companies even have negative equity, so the PB Ratio cannot be applied to them.
plenum AG PB Ratio Related Terms
plenum AG PB Ratio Historical Data
* Premium members only.
The historical data trend for plenum AG's 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.
For the Consulting Services subindustry, plenum AG's PB Ratio, along with its competitors' market caps and 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.
plenum AG PB Ratio vs Business Services Industry
For the Business Services industry and Industrials sector, plenum AG's PB Ratio distribution charts can be found below:
* The bar in red indicates where plenum AG's PB Ratio falls into.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. It is a ratio widely used to value stocks.
plenum AG's PB Ratio for today is calculated as follows:
* 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.
It can also be calculated from the numbers for the whole company:
A closely related ratio is called Price-to-Tangible-Book. The difference between Price-to-Tangible-Book and PB Ratio is that book value other than intangibles are used in the calculation.
plenum AG (FRA:PLEK) has a PB Ratio of 1.47 as of Jul. 07, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on plenum AG and its competitors. This is 46% below median its historical median of 2.74. Over the past decade, plenum AG's PB Ratio has ranged from 1.43 to 8.31. According to the industry distribution chart, plenum AG ranks #414 out of 1047 companies in the Business Services industry, placing it in the top 39.5%.
Is plenum AG's PB Ratio too high?
plenum AG's current PB Ratio of 1.47 is 46% below median its 10-year median of 2.74. Over the past 10 years, this metric has ranged from a low of 1.43 to a high of 8.31. The Business Services industry median PB Ratio is 1.66. plenum AG's value of 1.47 is 11.4% below this industry median. Based on the distribution chart, plenum AG ranks #414 out of 1047 companies in the Business Services industry, which is above the industry midpoint. Overall, plenum AG has a GF Score™ of 62/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does plenum AG's PB Ratio compare to VRSK and EFX?
According to the Business Services industry distribution chart, plenum AG ranks #414 out of 1047 companies for PB Ratio. This puts plenum AG in the upper half of its industry. The industry median PB Ratio is 1.66. plenum AG's value of 1.47 is 11.4% below this benchmark. Historically, plenum AG's own PB Ratio has ranged from 1.43 to 8.31 over the past decade. While the company's 10-year median is 2.74 vs. the industry median of 1.66, plenum AG 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 PB Ratio for a Business Services company?
The median PB Ratio among Business Services companies is 1.66, based on 1,047 companies in the industry. Companies in the top quartile (top 25%) have a PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. plenum AG's current PB Ratio of 1.47 is 11.4% 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 PB Ratio mean?
A high PB Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on plenum AG and its competitors. For the Business Services industry, the median PB Ratio is 1.66 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. plenum AG's current PB Ratio is 1.47, which is 46% below median its own 10-year median of 2.74. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is plenum AG stock overvalued right now?
Based on GuruFocus' analysis, plenum AG (FRA:PLEK) is currently considered Possible Value Trap. The stock's GF Value™ is €5.96, compared to a current price of €2.96 — trading 50.3% below its estimated fair value. The current PB Ratio is 1.47, which is 46% below median its 10-year median of 2.74 and 11.4% below the Business Services industry median of 1.66. plenum AG's overall GF Score™ is 62/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PB Ratio calculated?
PB Ratio is calculated from a company's financial statements. For plenum AG (FRA:PLEK), the current PB Ratio is 1.47 as of Jul. 07, 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 plenum AG (FRA:PLEK) Overvalued in 2026?
Based on GuruFocus' analysis, plenum AG stock appears to be undervalued.
The current stock price of €2.96 is trading 50.3% below its estimated GF Value™ of €5.96.
GuruFocus considers plenum AG to be Possible Value Trap.
Key valuation signals for FRA:PLEK:
PB Ratio: 1.47 (46% below median its 10-year median of 2.74)
GF Value™: €5.96 vs. price of €2.96 (50.3% below fair value)
Industry Position: 11.4% below the Business Services median (#414 of 1047)
No single metric tells the full story. See the FRA:PLEK stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
plenum AG is a German company which offers consulting services to financial companies, telecom, utilities, and logistics firms. The firm offers marketing, process optimization, and IT consulting services.
62GF Score
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