Grammer AG (WBO:GMM) Graham Number: €16.32 (As of Mar. 2026) — 1155% Above Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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.
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Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

WBO:GMM Grammer AG WBO:GMM
77 GF Score
Price €10.50
GF Value €8.32
! 8 Warning Signs
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What is Grammer AG Graham Number?

Grammer AG WBO:GMM +0.96% 77 Graham Number is €16.32 as of Mar. 2026, which is 100% below its 10-year median of 1.30. GuruFocus rates WBO:GMM with a GF Score™ of 77/100 and a GF Value™ of €8.32. The stock has 8 warning signs investors should review. Among 983 Vehicles & Parts companies, Grammer AG ranks better than 75.08% on this metric.

Graham Number is a figure that measures a stock's fundamental value by taking into account the company's earnings per share and book value per share. The Graham number is the upper bound of the price range that a defensive investor should pay for the stock. According to the theory, any stock price below the Graham number is considered undervalued, and thus worth investing in.

As of today (2026-07-31), the stock price of Grammer AG is €10.50. Grammer AG's graham number for the quarter that ended in Mar. 2026 was €16.32. Therefore, Grammer AG's Price to Graham Number ratio for today is 0.64.

The historical rank and industry rank for Grammer AG's Graham Number or its related term are showing as below:

WBO:GMM' s Price-to-Graham-Number Range Over the Past 10 Years
Min: 0.38   Med: 1.3   Max: 4.09
Current: 0.65

During the past 13 years, the highest Price to Graham Number ratio of Grammer AG was 4.09. The lowest was 0.38. And the median was 1.30.

WBO:GMM's Price-to-Graham-Number is ranked better than
75.08% of 983 companies
in the Vehicles & Parts industry
Industry Median: 1.16 vs WBO:GMM: 0.65

Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.


Grammer AG  (WBO:GMM) Graham Number Explanation

Ben Graham actually did not publish a formula like this. But he wrote in The Intelligent Investor (1948 version) regarding to the criteria for purchases:

Current price should not be more than 15 times average earnings of the past three years.

Current price should not be more than 1.5 times the book value last reported. However, a multiplier of earnings below 15 could justify a correspondingly higher multiplier of assets. As a rule of thumb we suggest that the product of the multiplier times the ratio of price to book value should not exceed 22.5. (This figure corresponds to 15 times earnings and 1.5 times book value. It would admit an issue selling at only 9 times earnings and 2.5 times asset value, etc.)

Unlike valuation methods such as DCF or Discounted Earnings, the Graham number does not take growth into the valuation. Unlike the valuation methods based on book value alone, it takes into account the earnings power. Therefore, the Graham Number is a combination of asset valuation and earnings power valuation.

In general, the Graham number is a very conservative way of valuing a stock. It cannot be applied to companies with negative book values.

Grammer AG's Price to Graham number Ratio for today is calculated as

Price to Graham number=Share Price (Today)/Graham number (Q: Mar. 2026 )
=10.50/16.32
=0.64

* 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.


Be Aware

Please keep these in mind:

1. Graham Number does not take growth into account. Therefore it underestimates the values of the companies that have good earnings growth. We feel that if the earnings per share grows more than 10% a year, Graham Number underestimates the value.
2. Graham Number punishes the companies that have temporarily low earnings. Therefore, an average of earnings makes more sense in the calculation of Graham Number.
3. Graham Numbers underestimates companies that are light with book.


Grammer AG Graham Number Related Terms


Grammer AG Graham Number Historical Data

* Premium members only.

The historical data trend for Grammer AG's Graham Number 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.

Grammer AG Graham Number Chart

Grammer AG Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Graham Number
Get a 7-Day Free Trial Premium Member Only Premium Member Only 8.17 0.00 19.05 0.00 9.96

Grammer AG Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Graham Number Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.00 0.00 12.78 14.85 16.32

WBO:GMM vs ORLY, AZO, GPC: Graham Number Comparison

For the Auto Parts subindustry, Grammer AG's Price-to-Graham-Number, along with its competitors' market caps and Price-to-Graham-Number 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.


Grammer AG Price-to-Graham-Number vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, Grammer AG's Price-to-Graham-Number distribution charts can be found below:

* The bar in red indicates where Grammer AG's Price-to-Graham-Number falls into.


WBO:GMM
77GF Score
Grammer AG WBO:GMM
Graham Number is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Grammer AG Graham Number Calculation

Graham Number is a concept based on Ben Graham's conservative valuation of companies.

Grammer AG's Graham Number for the fiscal year that ended in Dec. 2025 is calculated as

Graham Number
=sqrt of (22.5* Tangible Book per Share *EPS without NRI)
=sqrt of (22.5*7.004*0.63)
=9.96

Grammer AG's Graham Number for the quarter that ended in Mar. 2026 is calculated as

Graham Number
=sqrt of (22.5*Tangible Book per Share*EPS without NRI (TTM))
=sqrt of (22.5*8.274*1.43)
=16.32

* 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.

Frequently Asked Questions Learn more about Graham Number →
What does a Graham Number of €16.32 mean?
Grammer AG (WBO:GMM) has a Graham Number of €16.32 as of Mar. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Grammer AG and its competitors. This is 1155% above median its historical median of 1.30. Over the past decade, Grammer AG's Graham Number has ranged from 0.38 to 4.09. According to the industry distribution chart, Grammer AG ranks #245 out of 983 companies in the Vehicles & Parts industry, placing it in the top 24.9%.
Is Grammer AG's Graham Number too high?
Grammer AG's current Graham Number of €16.32 is 1155% above median its 10-year median of 1.30. Over the past 10 years, this metric has ranged from a low of 0.38 to a high of 4.09. Based on the distribution chart, Grammer AG ranks #245 out of 983 companies in the Vehicles & Parts industry, which is in the top quartile — a strong position relative to peers. Overall, Grammer AG has a GF Score™ of 77/100, reflecting its overall financial health beyond just this single metric.
How does Grammer AG's Graham Number compare to ORLY and AZO?
According to the Vehicles & Parts industry distribution chart, Grammer AG ranks #245 out of 983 companies for Graham Number. This places Grammer AG in the top 25% of its industry — outperforming the majority of peers. The industry median Graham Number is 1.16. Historically, Grammer AG's own Graham Number has ranged from 0.38 to 4.09 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Graham Number for a Vehicles & Parts company?
The median Graham Number among Vehicles & Parts companies is 1.16, based on 983 companies in the industry. Companies in the top quartile (top 25%) have a Graham Number significantly above this median, while those in the bottom quartile fall well below. However, Graham Number should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Graham Number mean?
A high Graham Number can signal that a stock is expensive relative to its fundamentals. The Graham Number values a company based on its per-share earnings and book value. View historical data on Grammer AG and its competitors. For the Vehicles & Parts industry, the median Graham Number is 1.16 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Grammer AG's current Graham Number is €16.32, which is 1155% above median its own 10-year median of 1.30. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Grammer AG stock overvalued right now?
Grammer AG (WBO:GMM) has a current Graham Number of €16.32. The stock's GF Value™ is €8.32, compared to a current price of €10.50 — trading 26.2% above its estimated fair value. The current Graham Number is €16.32, which is 1155% above median its 10-year median of 1.30. Grammer AG's overall GF Score™ is 77/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Graham Number calculated?
Graham Number is calculated from a company's financial statements. For Grammer AG (WBO:GMM), the current Graham Number is €16.32 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 Grammer AG (WBO:GMM) Overvalued in 2026?

Based on GuruFocus' analysis, Grammer AG stock appears to be overvalued. The current stock price of €10.50 is trading 26.2% above its estimated GF Value™ of €8.32.

Key valuation signals for WBO:GMM:

  • Graham Number: €16.32 (1155% above median its 10-year median of 1.30)
  • GF Value™: €8.32 vs. price of €10.50 (26.2% above fair value)
  • GF Score™: 77/100 with 8 warning signs

No single metric tells the full story. See the WBO:GMM stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Grammer AG Business Description

Other Exchanges 0OQX:UKGMM:Germany
Address Grammer-Allee 2, Ursensollen, BY, DEU, 92289
Grammer AG specializes in developing and manufacturing components and systems for car interiors as well as driver and passenger seats for off-road vehicles, trucks, buses, and trains. Its product portfolio comprises consoles and armrests, headrests, and other interior products for cars, as well as passenger seats, interior components, and related spare parts for commercial vehicles, among others. The company has three reportable segments: EMEA, Americas, and APAC. The majority of its revenue is generated from the EMEA segment (Europe, Middle East, and Africa).
77GF Score

Get the complete analysis for WBO:GMM

Graham Number is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€10.50
Price
€8.32
GF Value