MBB SESTU:MBB -4.22%93 PB Ratio is 1.31 as of Jun. 26, 2026, which is 4% below its 10-year median of 1.36. GuruFocus rates STU:MBB with a GF Score™ of 93/100 and a GF Value™ of €132.47 (Modestly Overvalued). The stock has 1 warning sign investors should review. Among 544 Conglomerates companies, MBB SE ranks worse than 63.05% 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 (2026-06-26), MBB SE's share price is €172.40. MBB SE's Book Value per Share for the quarter that ended in Mar. 2026 was €131.32. Hence, MBB SE's PB Ratio of today is 1.31.
Good Sign:
MBB SE stock PB Ratio (=1.35) is close to 1-year low of 1.29.
The historical rank and industry rank for MBB SE's PB Ratio or its related term are showing as below:
STU:MBB'
s PB Ratio Range Over the Past 10 Years
Min: 0.76 Med: 1.36 Max: 6.59
Current: 1.35
During the past 13 years, MBB SE's highest PB Ratio was 6.59. The lowest was 0.76. And the median was 1.36.
STU:MBB's PB Ratio is ranked worse than 63.05% of 544
companies
in the Conglomerates industry
Industry Median: 1.035
vs STU:MBB: 1.35
During the past 12 months, MBB SE's average Book Value Per Share Growth Rate was 29.80% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 10.00% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 11.50% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was 23.80% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of MBB SE was 65.90% per year. The lowest was -5.00% per year. And the median was 14.20% 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.
MBB SE PB Ratio Related Terms
MBB SE PB Ratio Historical Data
* Premium members only.
The historical data trend for MBB SE'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 Conglomerates subindustry, MBB SE'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.
MBB SE PB Ratio vs Conglomerates Industry
For the Conglomerates industry and Industrials sector, MBB SE's PB Ratio distribution charts can be found below:
* The bar in red indicates where MBB SE'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.
MBB SE'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.
MBB SE (STU:MBB) has a PB Ratio of 1.31 as of Jun. 26, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on MBB SE and its competitors. This is near median its historical median of 1.36. Over the past decade, MBB SE's PB Ratio has ranged from 0.76 to 6.59. According to the industry distribution chart, MBB SE ranks #343 out of 544 companies in the Conglomerates industry, placing it in the top 63.1%.
Is MBB SE's PB Ratio too high?
MBB SE's current PB Ratio of 1.31 is near median its 10-year median of 1.36. Over the past 10 years, this metric has ranged from a low of 0.76 to a high of 6.59. The Conglomerates industry median PB Ratio is 1.04. MBB SE's value of 1.31 is 26.6% above this industry median. Based on the distribution chart, MBB SE ranks #343 out of 544 companies in the Conglomerates industry, which is below the industry midpoint. Overall, MBB SE has a GF Score™ of 93/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does MBB SE's PB Ratio compare to HON and MMM?
According to the Conglomerates industry distribution chart, MBB SE ranks #343 out of 544 companies for PB Ratio. This places MBB SE in the lower half of its industry. The industry median PB Ratio is 1.04. MBB SE's value of 1.31 is 26.6% above this benchmark. Historically, MBB SE's own PB Ratio has ranged from 0.76 to 6.59 over the past decade. While the company's 10-year median is 1.36 vs. the industry median of 1.04, MBB 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 PB Ratio for a Conglomerates company?
The median PB Ratio among Conglomerates companies is 1.04, based on 544 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. MBB SE's current PB Ratio of 1.31 is 26.6% 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 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 MBB SE and its competitors. For the Conglomerates industry, the median PB Ratio is 1.04 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. MBB SE's current PB Ratio is 1.31, which is near median its own 10-year median of 1.36. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is MBB SE stock overvalued right now?
Based on GuruFocus' analysis, MBB SE (STU:MBB) is currently considered Modestly Overvalued. The stock's GF Value™ is €132.47, compared to a current price of €172.40 — trading 30.1% above its estimated fair value. The current PB Ratio is 1.31, which is near median its 10-year median of 1.36 and 26.6% above the Conglomerates industry median of 1.04. MBB SE's overall GF Score™ is 93/100 with 1 warning sign 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 MBB SE (STU:MBB), the current PB Ratio is 1.31 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 MBB SE (STU:MBB) Overvalued in 2026?
Based on GuruFocus' analysis, MBB SE stock appears to be overvalued.
The current stock price of €172.40 is trading 30.1% above its estimated GF Value™ of €132.47.
GuruFocus considers MBB SE to be Modestly Overvalued.
Key valuation signals for STU:MBB:
PB Ratio: 1.31 (near median its 10-year median of 1.36)
GF Value™: €132.47 vs. price of €172.40 (30.1% above fair value)
Industry Position: 26.6% above the Conglomerates median (#343 of 544)
No single metric tells the full story. See the STU:MBB stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
MBB SE is a medium-sized, family-owned company specializing in the acquisition and management of medium-sized industrial companies with considerable technology and engineering expertise. It concentrates on energy transition, e-mobility, cybersecurity, and ecological materials through its subsidiaries. The MBB Group comprises the following reportable segments: Friedrich Vorwerk, Aumann, DTS, Delignit. Aumann AG: Specialized in e-mobility and automation, Friedrich Vorwerk: Focused on energy infrastructure, including gas, power grids, and hydrogen. DTS IT AG: Provides cybersecurity and cloud computing services. Delignit AG: Produces ecological hardwood-based materials and Hanke Tissue: Produces consumer goods like mattresses and tissue paper.
93GF Score
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