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 (2025-04-29), the stock price of Petra Diamonds is £0.275. Petra Diamonds's graham number for the quarter that ended in Dec. 2024 was £N/A. Therefore, Petra Diamonds's Price to Graham Number ratio for today is N/A.
The historical rank and industry rank for Petra Diamonds's Graham Number or its related term are showing as below:
During the past 13 years, the highest Price to Graham Number ratio of Petra Diamonds was 3.67. The lowest was 0.22. And the median was 1.11.
LSE:PDL's Price-to-Graham-Number is not ranked *
in the Metals & Mining industry.
Industry Median: 1.155 * 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.
Petra Diamonds Graham Number Historical Data
The historical data trend for Petra Diamonds'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.
Competitive Comparison of Petra Diamonds's Graham Number
For the Other Precious Metals & Mining subindustry, Petra Diamonds'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.
Petra Diamonds's Price-to-Graham-Number Distribution in the Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Petra Diamonds's Price-to-Graham-Number distribution charts can be found below:
* The bar in red indicates where Petra Diamonds's Price-to-Graham-Number falls into.
* 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.
Petra Diamonds (LSE:PDL) 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.
Petra Diamonds's Price to Graham number Ratio for today is calculated as
Price to Graham number
=
Share Price (Today)
/
Graham number (Q: Dec. 2024 )
=
0.275
/
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.
Petra Diamonds Graham Number Related Terms
Thank you for viewing the detailed overview of Petra Diamonds's Graham Number provided by GuruFocus.com. Please click on the following links to see related term pages.
Petra Diamonds Ltd is an independent diamond mining company and supplier of rough diamonds to the international market. Group functions through Mining and Exploration segment which include extraction and sale of rough diamonds from mining operations in South Africa and Tanzania and exploration activities in Botswana. Its operating mines include Finsch, Cullinan, Koffiefontein, and Williamson. Revenue for the firm is derived from the sale of goods.
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