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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 GF Value represents the intrinsic value of a stock, determined using GuruFocus' proprietary methodology. The GF Value Line on our stock Summary page provides an estimate of the stock’s fair-trading value.
To calculate this value, GuruFocus follows these steps:
We analyze historical correlations between the stock price and key business performance metrics, such as revenue, earnings, cash flow, and book value.
We identify the metrics that have the strongest historical correlation with the stock price and determine the historical multiples at which the stock has traded relative to these metrics.
Using these historical multiples as a reference, we estimate the stock's fair value while accounting for future business growth. Adjustments may be made based on the company’s past returns and growth trends.
GuruFocus believes that the GF Value Line represents the fair value at which a stock should trade. Stock prices typically fluctuate around this line. If a stock’s price is significantly above the GF Value Line, it is considered overvalued, and its future returns are likely to be lower. Conversely, if the stock price is significantly below the GF Value Line, its future returns are likely to be higher.
(1) These are some simple examples. You can access our GF Valuation filter under All-in-One Screener’s Fundamental tab, and Price-to-GF-Value filter under Valuation Ratio tab and set your own criteria.
(2) A sufficient margin of safety exists only when the stock is undervalued.
Possible Value Trap, Think Twice companies are those that appear significantly undervalued based on their Price-to-GF-Value ratio, but whose fundamentals show signs of weakness.
Indicators that a company may be a value trap include:
* Deteriorating Financial Health: A low Altman Z-scores indicates a higher risk of bankruptcy, or a low Piotroski F-Score. * Earnings Manipulation: A high Beneish M-score indicates potential earnings manipulation, raising concerns about the reliability of reported financials. * Stagnant or Declining Growth: Lack of revenue or earnings growth, or a recent slowdown, may signal limited future prospects.
Investors should conduct thorough due diligence, examining financial statements and growth indicators, to avoid falling into value traps.
South Manganese Investment's Price-to-GF-Value for today is calculated as
Price-to-GF-Value
=
Share Price
/
GF Value
=
0.38
/
0.14
=
2.71
* 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.
South Manganese Investment (HKSE:01091) has a GF Value of HK$0.14 as of Aug. 29, 2026. GF Value represents the current intrinsic value of a stock derived from our exclusive method. View historical data on South Manganese Investment and its competitors.
Is South Manganese Investment's GF Value too high?
South Manganese Investment's current GF Value is HK$0.14. Overall, South Manganese Investment has a GF Score™ of 44/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does South Manganese Investment's GF Value compare to competitors?
South Manganese Investment's GF Value of HK$0.14 can be compared against companies in the Metals & Mining industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good GF Value for a Metals & Mining company?
A good GF Value depends on the Metals & Mining industry context. However, GF Value 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 GF Value mean?
A high GF Value can signal that a stock is expensive relative to its fundamentals. GF Value represents the current intrinsic value of a stock derived from our exclusive method. View historical data on South Manganese Investment and its competitors. South Manganese Investment's current GF Value is HK$0.14. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is South Manganese Investment stock overvalued right now?
Based on GuruFocus' analysis, South Manganese Investment (HKSE:01091) is currently considered Significantly Overvalued. The stock's GF Value™ is HK$0.14, compared to a current price of HK$0.38 — trading 171.4% above its estimated fair value. The current GF Value is HK$0.14. South Manganese Investment's overall GF Score™ is 44/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is GF Value calculated?
GF Value is calculated from a company's financial statements. For South Manganese Investment (HKSE:01091), the current GF Value is HK$0.14 as of Aug. 29, 2026. 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 South Manganese Investment (HKSE:01091) Overvalued in 2026?
Based on GuruFocus' analysis, South Manganese Investment stock appears to be overvalued.
The current stock price of HK$0.38 is trading 171.4% above its estimated GF Value™ of HK$0.14.
GuruFocus considers South Manganese Investment to be Significantly Overvalued.
Key valuation signals for HKSE:01091:
GF Value: HK$0.14
GF Value™: HK$0.14 vs. price of HK$0.38 (171.4% above fair value)
No single metric tells the full story. See the HKSE:01091 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
South Manganese Investment Ltd is a mining company engaged in manganese mining, ore processing in China and Gabon, and downstream processing operations in the PRC. The company operates in four segments namely Manganese mining which engages in the mining and production of manganese products including mining, beneficiation, concentrating, grinding and the production of manganese concentrates; EMM and alloying materials production segment comprise hydrometallurgical processing and pyrometallurgical processing; Battery materials production segment engages in the production and sale of battery materials products, including Electrolytic Manganese Dioxide; and others business segment includes trading of various commodities such as manganese ore, sales of scraps, and others.
44GF Score
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GF Value is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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