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.
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.
P.B. GroupHKSE:08331 38 OCF Margin % is -22.46% as of Sep. 2025. GuruFocus rates HKSE:08331 with a GF Score™ of 38/100 and a GF Value™ of HK$0.09 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 846 Metals & Mining companies, P.B. Group ranks worse than 73.05% on this metric.
The historical rank and industry rank for P.B. Group's OCF Margin % or its related term are showing as below:
HKSE:08331'
s OCF Margin % Range Over the Past 10 Years
Min: -268.84 Med: -1.15 Max: 23.79
Current: -18.46
During the past 11 years, the highest OCF Margin % of P.B. Group was 23.79%. The lowest was -268.84%. And the median was -1.15%.
HKSE:08331's OCF Margin % is ranked worse than 73.05% of 846
companies
in the Metals & Mining industry
Industry Median: 4.465
vs HKSE:08331: -18.46
P.B. Group OCF Margin % Related Terms
P.B. Group OCF Margin % Historical Data
* Premium members only.
The historical data trend for P.B. Group'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 Industrial Metals & Mining subindustry, P.B. Group'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.
P.B. Group OCF Margin % vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, P.B. Group's OCF Margin % distribution charts can be found below:
* The bar in red indicates where P.B. Group'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.
P.B. Group (HKSE:08331) has a OCF Margin % of -22.46% as of Sep. 2025. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on P.B. Group and its competitors. According to the industry distribution chart, P.B. Group ranks #618 out of 846 companies in the Metals & Mining industry, placing it in the top 73%.
Is P.B. Group's OCF Margin % too high?
P.B. Group's current OCF Margin % is -22.46%. Based on the distribution chart, P.B. Group ranks #618 out of 846 companies in the Metals & Mining industry, which is below the industry midpoint. Overall, P.B. Group has a GF Score™ of 38/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does P.B. Group's OCF Margin % compare to competitors?
According to the Metals & Mining industry distribution chart, P.B. Group ranks #618 out of 846 companies for OCF Margin %. This places P.B. Group in the lower half of its industry. The industry median OCF Margin % is 4.47. 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. 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 P.B. Group 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. P.B. Group's current OCF Margin % is -22.46%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is P.B. Group stock overvalued right now?
Based on GuruFocus' analysis, P.B. Group (HKSE:08331) is currently considered Significantly Overvalued. The stock's GF Value™ is HK$0.09, compared to a current price of HK$0.24 — trading 166.7% above its estimated fair value. The current OCF Margin % is -22.46%. P.B. Group's overall GF Score™ is 38/100 with 4 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 P.B. Group (HKSE:08331), the current OCF Margin % is -22.46% as of Sep. 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 P.B. Group (HKSE:08331) Overvalued in 2026?
Based on GuruFocus' analysis, P.B. Group stock appears to be overvalued.
The current stock price of HK$0.24 is trading 166.7% above its estimated GF Value™ of HK$0.09.
GuruFocus considers P.B. Group to be Significantly Overvalued.
Key valuation signals for HKSE:08331:
OCF Margin %: -22.46%
GF Value™: HK$0.09 vs. price of HK$0.24 (166.7% above fair value)
No single metric tells the full story. See the HKSE:08331 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
P.B. Group Ltd is engaged in bentonite mining, production, and sales of drilling mud and pelletizing clay. It also engaged in the financial service business. It operates in three reportable segments Bentonite mining operation engaged in Bentonite mining, production, and sales of drilling mud and pelletizing clay; Financial service business engaged in the provision of wealth management services, money lending services, and provision of financial services; and Property investment business engaged in properties for rental income potential and/or for capital appreciation. It derives revenue from Bentonite mining operations.
38GF Score
Get the complete analysis for HKSE:08331
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
HKSE:08331 has been successfully added to your 
