Petra DiamondsPDLMF 43 3-Year ROIIC % is 199.50 as of Jun. 2025, which is 8968% above its 10-year median of 2.20. GuruFocus rates PDLMF with a GF Score™ of 43/100 and a GF Value™ of $0.97. The stock has 2 warning signs investors should review. Among 2,300 Metals & Mining companies, Petra Diamonds ranks better than 91.96% on this metric.
3-Year Return on Invested Incremental Capital (3-Year ROIIC %) measures the change in earnings as a percentage of change in investment over 3-year.
Petra Diamonds's 3-Year ROIIC % for the quarter that ended in Jun. 2025 was 199.50%. High ROIIC is generally an indication that your business is capital efficient or has a higher operating leverage.
The industry rank for Petra Diamonds's 3-Year ROIIC % or its related term are showing as below:
PDLMF's 3-Year ROIIC % is ranked better than 91.96% of 2300
companies
in the Metals & Mining industry
Industry Median: -2.49
vs PDLMF: 199.50
Petra Diamonds (OTCPK:PDLMF) 3-Year ROIIC % Explanation
Return on Incremental Invested Capital (ROIIC) is an extension of Return on Investment Capital (ROIC). ROIC % tells investors how efficiently that profitability is earned per dollar of company capital. ROIIC narrows the focus even further and shows how profitable each additional unit of capital investment could be. ROIIC % is a more powerful metric than ROIC because it measures how much money the company can generate going forward on future capital investments.
High ROIIC is generally an indication that your business is capital efficient or has a higher operating leverage.
Be Aware
It's important to keep in mind that when tracking ROIIC, the metric is better suited to forecasting the trend of future returns rather than measuring current return on investment.
Petra Diamonds 3-Year ROIIC % Related Terms
Petra Diamonds 3-Year ROIIC % Historical Data
* Premium members only.
The historical data trend for Petra Diamonds's 3-Year ROIIC % 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 3-Year ROIIC %, along with its competitors' market caps and 3-Year ROIIC % 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 3-Year ROIIC % vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Petra Diamonds's 3-Year ROIIC % distribution charts can be found below:
* The bar in red indicates where Petra Diamonds's 3-Year ROIIC % falls into.
Petra Diamonds's 3-Year ROIIC % for the quarter that ended in Jun. 2025 is calculated as:
3-Year ROIIC %
=
3-Year Incremental Net Operating Profit After Taxes (NOPAT)**
/
3-Year Incremental Invested Capital**
=
( -41.9276 (Jun. 2025) - 140.1138 (Jun. 2022) )
/
( 785 (Jun. 2025) - 801.8 (Jun. 2022) )
=
-182.0414
/
-16.8
=
1,083.58%***
* 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.
** Annual data of NOPAT and Invested Capital was used to calculate 3-Year ROIIC %.
*** Please be aware that the ROIIC (Return on Invested Capital) calculations are based on company-level data using the primary share class. The calculated data provided is for demonstration purposes and may slightly differ from the results displayed in the title due to potential variations caused by currency exchange rate differences throughout the year.
Petra Diamonds (PDLMF) has a 3-Year ROIIC % of 199.50 as of Jun. 2025. 3-Year ROIIC % measures the change in earnings as a percentage of change in investment over 3-year. View historical data on Petra Diamonds and its competitors. This is 8968% above median its historical median of 2.20. According to the industry distribution chart, Petra Diamonds ranks #185 out of 2300 companies in the Metals & Mining industry, placing it in the top 8%.
Is Petra Diamonds' 3-Year ROIIC % too high?
Petra Diamonds' current 3-Year ROIIC % of 199.50 is 8968% above median its 10-year median of 2.20. Based on the distribution chart, Petra Diamonds ranks #185 out of 2300 companies in the Metals & Mining industry, which is in the top quartile — a strong position relative to peers. Overall, Petra Diamonds has a GF Score™ of 43/100, reflecting its overall financial health beyond just this single metric.
How does Petra Diamonds' 3-Year ROIIC % compare to HL?
According to the Metals & Mining industry distribution chart, Petra Diamonds ranks #185 out of 2300 companies for 3-Year ROIIC %. This places Petra Diamonds in the top 8% of its industry — outperforming the majority of peers. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 3-Year ROIIC % for a Metals & Mining company?
A good 3-Year ROIIC % depends on the Metals & Mining industry context. However, 3-Year ROIIC % 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 3-Year ROIIC % mean?
A high 3-Year ROIIC % can signal that a stock is expensive relative to its fundamentals. 3-Year ROIIC % measures the change in earnings as a percentage of change in investment over 3-year. View historical data on Petra Diamonds and its competitors. Petra Diamonds's current 3-Year ROIIC % is 199.50, which is 8968% above median its own 10-year median of 2.20. 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 3-Year ROIIC % of 199.50. The stock's GF Value™ is $0.97, compared to a current price of $0.27 — trading 72.3% below its estimated fair value. The current 3-Year ROIIC % is 199.50, which is 8968% above median its 10-year median of 2.20. 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 3-Year ROIIC % calculated?
3-Year ROIIC % is calculated from a company's financial statements. For Petra Diamonds (PDLMF), the current 3-Year ROIIC % is 199.50 as of Jun. 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 72.3% below its estimated GF Value™ of $0.97.
Key valuation signals for PDLMF:
3-Year ROIIC %: 199.50 (8968% above median its 10-year median of 2.20)
GF Value™: $0.97 vs. price of $0.27 (72.3% below fair value)
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
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