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.
The historical rank and industry rank for Cornerstone Technologies Holdings's FCF Margin % or its related term are showing as below:
HKSE:08391'
s FCF Margin % Range Over the Past 10 Years
Min: -204.3 Med: -10.44 Max: 16.49
Current: -14.66
During the past 10 years, the highest FCF Margin % of Cornerstone Technologies Holdings was 16.49%. The lowest was -204.30%. And the median was -10.44%.
HKSE:08391's FCF Margin % is ranked worse than 85.55% of 1066
companies
in the Business Services industry
Industry Median: 3.39
vs HKSE:08391: -14.66
* 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.
HKSE:08391 vs URI, SUNB, AER: FCF Margin % Comparison
For the Rental & Leasing Services subindustry, Cornerstone Technologies Holdings's FCF Margin %, along with its competitors' market caps and FCF 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.
Cornerstone Technologies Holdings FCF Margin % vs Business Services Industry
For the Business Services industry and Industrials sector, Cornerstone Technologies Holdings's FCF Margin % distribution charts can be found below:
* The bar in red indicates where Cornerstone Technologies Holdings's FCF 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.
Cornerstone Technologies Holdings (HKSE:08391) has a FCF Margin % of -3.58% as of Dec. 2025. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Cornerstone Technologies Holdings and its competitors. According to the industry distribution chart, Cornerstone Technologies Holdings ranks #912 out of 1066 companies in the Business Services industry, placing it in the top 85.6%.
Is Cornerstone Technologies Holdings' FCF Margin % too high?
Cornerstone Technologies Holdings' current FCF Margin % is -3.58%. Based on the distribution chart, Cornerstone Technologies Holdings ranks #912 out of 1066 companies in the Business Services industry, which is in the bottom quartile relative to peers. Overall, Cornerstone Technologies Holdings has a GF Score™ of 36/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Cornerstone Technologies Holdings' FCF Margin % compare to URI and SUNB?
According to the Business Services industry distribution chart, Cornerstone Technologies Holdings ranks #912 out of 1066 companies for FCF Margin %. This places Cornerstone Technologies Holdings in the lower half of its industry. The industry median FCF Margin % is 3.39. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good FCF Margin % for a Business Services company?
The median FCF Margin % among Business Services companies is 3.39, based on 1,066 companies in the industry. Companies in the top quartile (top 25%) have a FCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, FCF 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 FCF Margin % mean?
A high FCF Margin % can signal that a stock is expensive relative to its fundamentals. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Cornerstone Technologies Holdings and its competitors. For the Business Services industry, the median FCF Margin % is 3.39 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Cornerstone Technologies Holdings's current FCF Margin % is -3.58%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Cornerstone Technologies Holdings stock overvalued right now?
Based on GuruFocus' analysis, Cornerstone Technologies Holdings (HKSE:08391) is currently considered Possible Value Trap. The stock's GF Value™ is HK$0.81, compared to a current price of HK$0.30 — trading 63% below its estimated fair value. The current FCF Margin % is -3.58%. Cornerstone Technologies Holdings' overall GF Score™ is 36/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is FCF Margin % calculated?
FCF Margin % is calculated from a company's financial statements. For Cornerstone Technologies Holdings (HKSE:08391), the current FCF Margin % is -3.58% 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 Cornerstone Technologies Holdings (HKSE:08391) Overvalued in 2026?
Based on GuruFocus' analysis, Cornerstone Technologies Holdings stock appears to be undervalued.
The current stock price of HK$0.30 is trading 63% below its estimated GF Value™ of HK$0.81.
GuruFocus considers Cornerstone Technologies Holdings to be Possible Value Trap.
Key valuation signals for HKSE:08391:
FCF Margin %: -3.58%
GF Value™: HK$0.81 vs. price of HK$0.30 (63% below fair value)
No single metric tells the full story. See the HKSE:08391 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Cornerstone Technologies Holdings Ltd is an investment holding company. The company is engaged in the electric vehicle charging business in Hong Kong. The Group has a sole segment electric vehicle charging business and derives its revenue from the Sales of electric vehicle charging systems.
36GF Score
Get the complete analysis for HKSE:08391
FCF 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:08391 has been successfully added to your 
