Petra DiamondsPDLMF 43 OCF Margin % is 39.00% as of Dec. 2025, which is 115% above its 10-year median of 18.17. GuruFocus rates PDLMF with a GF Score™ of 43/100 and a GF Value™ of $1.03. The stock has 2 warning signs investors should review. Among 846 Metals & Mining companies, Petra Diamonds ranks better than 62.17% on this metric.
The historical rank and industry rank for Petra Diamonds's OCF Margin % or its related term are showing as below:
PDLMF'
s OCF Margin % Range Over the Past 10 Years
Min: -3.33 Med: 18.17 Max: 50.12
Current: 13.02
During the past 13 years, the highest OCF Margin % of Petra Diamonds was 50.12%. The lowest was -3.33%. And the median was 18.17%.
PDLMF's OCF Margin % is ranked better than 62.17% of 846
companies
in the Metals & Mining industry
Industry Median: 4.465
vs PDLMF: 13.02
Petra Diamonds OCF Margin % Related Terms
Petra Diamonds OCF Margin % Historical Data
* Premium members only.
The historical data trend for Petra Diamonds's OCF Margin % 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 Other Precious Metals & Mining subindustry, Petra Diamonds's OCF Margin %, along with its competitors' market caps and OCF Margin % 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 OCF Margin % vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Petra Diamonds's OCF Margin % distribution charts can be found below:
* The bar in red indicates where Petra Diamonds's OCF Margin % 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 (PDLMF) has a OCF Margin % of 39.00% as of Dec. 2025. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on Petra Diamonds and its competitors. This is 115% above median its historical median of 18.17. According to the industry distribution chart, Petra Diamonds ranks #320 out of 846 companies in the Metals & Mining industry, placing it in the top 37.8%.
Is Petra Diamonds' OCF Margin % too high?
Petra Diamonds' current OCF Margin % of 39.00% is 115% above median its 10-year median of 18.17. The Metals & Mining industry median OCF Margin % is 4.47. Petra Diamonds' value of 39.00% is 773.5% above this industry median. Based on the distribution chart, Petra Diamonds ranks #320 out of 846 companies in the Metals & Mining industry, which is above the industry midpoint. Overall, Petra Diamonds has a GF Score™ of 43/100, reflecting its overall financial health beyond just this single metric.
How does Petra Diamonds' OCF Margin % compare to HL?
According to the Metals & Mining industry distribution chart, Petra Diamonds ranks #320 out of 846 companies for OCF Margin %. This puts Petra Diamonds in the upper half of its industry. The industry median OCF Margin % is 4.47. Petra Diamonds' value of 39.00% is 773.5% above this benchmark. While the company's 10-year median is 18.17 vs. the industry median of 4.47, Petra Diamonds 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 OCF Margin % for a Metals & Mining company?
The median OCF Margin % among Metals & Mining companies is 4.47, based on 846 companies in the industry. Companies in the top quartile (top 25%) have a OCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, OCF Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Petra Diamonds's current OCF Margin % of 39.00% is 773.5% 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 OCF Margin % mean?
A high OCF Margin % can signal that a stock is expensive relative to its fundamentals. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on Petra Diamonds and its competitors. For the Metals & Mining industry, the median OCF Margin % is 4.47 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Petra Diamonds's current OCF Margin % is 39.00%, which is 115% above median its own 10-year median of 18.17. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Petra Diamonds stock overvalued right now?
Petra Diamonds (PDLMF) has a current OCF Margin % of 39.00%. The stock's GF Value™ is $1.03, compared to a current price of $0.27 — trading 73.9% below its estimated fair value. The current OCF Margin % is 39.00%, which is 115% above median its 10-year median of 18.17 and 773.5% above the Metals & Mining industry median of 4.47. Petra Diamonds' overall GF Score™ is 43/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is OCF Margin % calculated?
OCF Margin % is calculated from a company's financial statements. For Petra Diamonds (PDLMF), the current OCF Margin % is 39.00% as of Dec. 2025. 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 Petra Diamonds (PDLMF) Overvalued in 2026?
Based on GuruFocus' analysis, Petra Diamonds stock appears to be undervalued.
The current stock price of $0.27 is trading 73.9% below its estimated GF Value™ of $1.03.
Key valuation signals for PDLMF:
OCF Margin %: 39.00% (115% above median its 10-year median of 18.17)
GF Value™: $1.03 vs. price of $0.27 (73.9% below fair value)
Industry Position: 773.5% above the Metals & Mining median (#320 of 846)
No single metric tells the full story. See the PDLMF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Petra Diamonds Ltd is an independent diamond mining company. It focuses on the upstream segment of the diamond pipeline, which includes mining, processing, sorting, and selling rough diamonds. It operates in Southern Africa, with mines such as Cullinan and Finsch producing high-quality white and rare blue diamonds. Its operating and geographical segments are: a) Mining: The extraction and sale of rough diamonds from mining operations in South Africa and Tanzania, b) Corporate: Administrative activities in the United Kingdom, c) Beneficiation: Beneficiation activities in South Africa. The majority of revenue is generated from the sale of rough diamonds.
43GF Score
Get the complete analysis for PDLMF
OCF Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
PDLMF has been successfully added to your 
