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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.
During the past 12 years, the highest Price to Graham Number ratio of Aeroporto Guglielmo Marconi di Bologna SpA was 58.57. The lowest was 7.34. And the median was 8.70.
MIL:ADB's Price-to-Graham-Number is not ranked *
in the Transportation industry.
Industry Median: 1.01 * Ranked among companies with meaningful Price-to-Graham-Number only.
Graham Number is a combination of asset valuation and earnings power valuation. It is a very conservative way of valuing a stock.
Aeroporto Guglielmo Marconi di Bologna SpA (MIL:ADB) 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.
Aeroporto Guglielmo Marconi di Bologna SpA's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Mar. 2026 )
=
9.92
/
N/A
=
N/A
* 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.
Aeroporto Guglielmo Marconi di Bologna SpA Graham Number Related Terms
Aeroporto Guglielmo Marconi di Bologna SpA Graham Number Historical 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.
Aeroporto Guglielmo Marconi di Bologna SpA Graham Number Chart
Aeroporto Guglielmo Marconi di Bologna SpA Annual Data
For the Airports & Air Services subindustry, Aeroporto Guglielmo Marconi di Bologna SpA'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.
Aeroporto Guglielmo Marconi di Bologna SpA Price-to-Graham-Number vs Transportation Industry
* 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.
Aeroporto Guglielmo Marconi di Bologna SpA (MIL:ADB) has a Graham Number of €N/A as of Mar. 2026. The Graham Number values a company based on its per-share earnings and book value. View historical data on Aeroporto Guglielmo Marconi di Bologna SpA and its competitors. Over the past decade, Aeroporto Guglielmo Marconi di Bologna SpA's Graham Number has ranged from 7.34 to 58.57. According to the industry distribution chart, Aeroporto Guglielmo Marconi di Bologna SpA ranks #999999 out of 742 companies in the Transportation industry.
Is Aeroporto Guglielmo Marconi di Bologna SpA's Graham Number too high?
Aeroporto Guglielmo Marconi di Bologna SpA's current Graham Number is €N/A. Over the past 10 years, this metric has ranged from a low of 7.34 to a high of 58.57. Based on the distribution chart, Aeroporto Guglielmo Marconi di Bologna SpA ranks #999999 out of 742 companies in the Transportation industry, which is in the bottom quartile relative to peers. Overall, Aeroporto Guglielmo Marconi di Bologna SpA has a GF Score™ of 74/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Aeroporto Guglielmo Marconi di Bologna SpA's Graham Number compare to JOBY and CAAP?
According to the Transportation industry distribution chart, Aeroporto Guglielmo Marconi di Bologna SpA ranks #999999 out of 742 companies for Graham Number. This places Aeroporto Guglielmo Marconi di Bologna SpA in the lower half of its industry. The industry median Graham Number is 1.01. Historically, Aeroporto Guglielmo Marconi di Bologna SpA's own Graham Number has ranged from 7.34 to 58.57 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 Transportation company?
The median Graham Number among Transportation companies is 1.01, based on 742 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 Aeroporto Guglielmo Marconi di Bologna SpA and its competitors. For the Transportation industry, the median Graham Number is 1.01 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Aeroporto Guglielmo Marconi di Bologna SpA's current Graham Number is €N/A. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Aeroporto Guglielmo Marconi di Bologna SpA stock overvalued right now?
Based on GuruFocus' analysis, Aeroporto Guglielmo Marconi di Bologna SpA (MIL:ADB) is currently considered Fairly Valued. The stock's GF Value™ is €9.67, compared to a current price of €9.92 — trading 2.6% above its estimated fair value. The current Graham Number is €N/A. Aeroporto Guglielmo Marconi di Bologna SpA's overall GF Score™ is 74/100 with 4 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 Aeroporto Guglielmo Marconi di Bologna SpA (MIL:ADB), the current Graham Number is €N/A 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 Aeroporto Guglielmo Marconi di Bologna SpA (MIL:ADB) Overvalued in 2026?
Based on GuruFocus' analysis, Aeroporto Guglielmo Marconi di Bologna SpA stock appears to be overvalued.
The current stock price of €9.92 is trading 2.6% above its estimated GF Value™ of €9.67.
GuruFocus considers Aeroporto Guglielmo Marconi di Bologna SpA to be Fairly Valued.
Key valuation signals for MIL:ADB:
Graham Number: €N/A
GF Value™: €9.67 vs. price of €9.92 (2.6% above fair value)
No single metric tells the full story. See the MIL:ADB stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Aeroporto Guglielmo Marconi di Bologna SpA Business Description
Aeroporto Guglielmo Marconi di Bologna SpA is engaged in the airport operations. It operates with three business units Aviation, Non-Aviation, and Other. Aviation unit is responsible for providing security services, information to the public and airport users, development of the airport infrastructure and service to passengers whereas Non-Aviation unit is concern about parking management, retail sub-concessions, advertising, passenger services and real estate management areas. The group generates revenue through Carriers, Airport Operators, Passenger Revenue, Traffic Incentives and Construction Services.
74GF Score
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