Guangdong InvestmentSTU:GUG +1.63%38 Piotroski F-Score is 8 as of Jun. 27, 2026, which is 60% above its 10-year median of 5.00. GuruFocus rates STU:GUG with a GF Score™ of 38/100 and a GF Value™ of €0.62 (Significantly Overvalued). The stock has 7 warning signs investors should review. Among 491 Utilities - Regulated companies, Guangdong Investment ranks better than 97.56% on this metric.
Good Sign:
Piotroski F-Score is 8, indicates a very healthy situation.
The zones of discrimination were as such:
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Guangdong Investment has an F-score of 8. It is a good or high score, which usually indicates a very healthy situation.
The historical rank and industry rank for Guangdong Investment's Piotroski F-Score or its related term are showing as below:
STU:GUG'
s Piotroski F-Score Range Over the Past 10 Years
Min: 3 Med: 5 Max: 8
Current: 8
During the past 13 years, the highest Piotroski F-Score of Guangdong Investment was 8. The lowest was 3. And the median was 5.
The developer of the system is Joseph D. Piotroski is relatively unknown accounting professor who shuns publicity and rarely gives interviews.
He graduated from the University of Illinois with a B.S. in accounting in 1989, received an M.B.A. from Indiana University in 1994. Five years later, in 1999, after earning a Ph.D. in accounting from the University of Michigan, he became an associate professor of accounting at the University of Chicago.
He wanted to see if he can develop a system (using a simple nine-point scoring system) that can increase the returns of a strategy of investing in low price to book (referred to in the paper as high book to market) value companies.
What he found was something that exceeded his most optimistic expectations.
Buying only those companies that scored highest (8 or 9) on his nine-point scale, or F-Score as he called it, over the 20 year period from 1976 to 1996 led to an average out-performance over the market of 13.4%.
Even more impressive were the results of a strategy of investing in the highest F-Score companies (8 or 9) and shorting companies with the lowest F-Score (0 or 1).
Over the same period from 1976 to 1996 (20 years) this strategy led to an average yearly return of 23%, substantially outperforming the average S&P 500 index return of 15.83% over the same period.
Guangdong Investment Piotroski F-Score Related Terms
Guangdong Investment Piotroski F-Score Historical Data
* Premium members only.
The historical data trend for Guangdong Investment's Piotroski F-Score 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.
STU:GUG vs AWK, WTRG: Piotroski F-Score Comparison
For the Utilities - Regulated Water subindustry, Guangdong Investment's Piotroski F-Score, along with its competitors' market caps and Piotroski F-Score 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.
Guangdong Investment Piotroski F-Score vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, Guangdong Investment's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where Guangdong Investment's Piotroski F-Score 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.
*Note: If the latest quarterly/semi-annual/annual total assets data is 0, then we will use previous quarterly/semi-annual/annual data for all the items in the balance sheet.
Profitability
Question 1. Return on Assets (ROA)
Net income before extraordinary items for the year divided by Total Assets at the beginning of the year.
Score 1 if positive, 0 if negative.
Guangdong Investment's current Net Income (TTM) was 511.
==> Positive ==> Score 1.
Question 2. Cash Flow Return on Assets (CFROA)
Net cash flow from operating activities (operating cash flow) divided by Total Assets at the beginning of the year.
Guangdong Investment's return on assets of this year was 0.03067847. Guangdong Investment's return on assets of last year was 0.02348907.
==> This year is higher. ==> Score 1.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
Guangdong Investment's gearing of this year was 0.12281196. Guangdong Investment's gearing of last year was 0.12493207.
==> This year is lower or equal to last year. ==> Score 1.
Question 6. Change in Working Capital (Liquidity)
Compare this year's current ratio (current assets divided by current liabilities) to last year's current ratio.
Score 1 if this year's current ratio is higher, 0 if it's lower
Guangdong Investment's current ratio of this year was 1.15164708. Guangdong Investment's current ratio of last year was 1.08989506.
==> This year's current ratio is higher. ==> Score 1.
Question 7. Change in Shares in Issue
Compare the number of shares in issue this year, to the number in issue last year.
Score 0 if there is larger number of shares in issue this year, 1 otherwise.
Guangdong Investment's number of shares in issue this year was 6537.821. Guangdong Investment's number of shares in issue last year was 6537.821.
==> There is smaller number of shares in issue this year, or the same. ==> Score 1.
Efficiency
Question 8. Change in Gross Margin
Compare this year's gross margin (Gross Profit divided by sales) to last year's.
Score 1 if this year's gross margin is higher, 0 if it's lower.
Guangdong Investment's gross margin of this year was 0.53303355. Guangdong Investment's gross margin of last year was 0.53079198.
==> This year's gross margin is higher. ==> Score 1.
Question 9. Change in asset turnover
Compare this year's asset turnover (total sales for the year divided by total assets at the beginning of the year) to last year's asset turnover ratio.
Score 1 if this year's asset turnover ratio is higher, 0 if it's lower
Guangdong Investment's asset turnover of this year was 0.12403069. Guangdong Investment's asset turnover of last year was 0.13833637.
==> Last year's asset turnover is higher ==> Score 0.
Evaluation
Piotroski F-Score
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Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Guangdong Investment has an F-score of 8. It is a good or high score, which usually indicates a very healthy situation.
Guangdong Investment (STU:GUG) has a Piotroski F-Score of 8 as of Jun. 27, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Guangdong Investment and its competitors. This is 60% above median its historical median of 5.00. Over the past decade, Guangdong Investment's Piotroski F-Score has ranged from 3.00 to 8.00. According to the industry distribution chart, Guangdong Investment ranks #12 out of 491 companies in the Utilities - Regulated industry, placing it in the top 2.4%.
Is Guangdong Investment's Piotroski F-Score too high?
Guangdong Investment's current Piotroski F-Score of 8 is 60% above median its 10-year median of 5.00. Over the past 10 years, this metric has ranged from a low of 3.00 to a high of 8.00. The Utilities - Regulated industry median Piotroski F-Score is 6.00. Guangdong Investment's value of 8 is 33.3% above this industry median. Based on the distribution chart, Guangdong Investment ranks #12 out of 491 companies in the Utilities - Regulated industry, which is in the top quartile — a strong position relative to peers. Overall, Guangdong Investment has a GF Score™ of 38/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Guangdong Investment's Piotroski F-Score compare to AWK and WTRG?
According to the Utilities - Regulated industry distribution chart, Guangdong Investment ranks #12 out of 491 companies for Piotroski F-Score. This places Guangdong Investment in the top 2% of its industry — outperforming the majority of peers. The industry median Piotroski F-Score is 6.00. Guangdong Investment's value of 8 is 33.3% above this benchmark. Historically, Guangdong Investment's own Piotroski F-Score has ranged from 3.00 to 8.00 over the past decade. While the company's 10-year median is 5.00 vs. the industry median of 6.00, Guangdong Investment 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 Piotroski F-Score for an Utilities - Regulated company?
The median Piotroski F-Score among Utilities - Regulated companies is 6.00, based on 491 companies in the industry. Companies in the top quartile (top 25%) have a Piotroski F-Score significantly above this median, while those in the bottom quartile fall well below. However, Piotroski F-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Guangdong Investment's current Piotroski F-Score of 8 is 33.3% 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 Piotroski F-Score mean?
A high Piotroski F-Score can signal that a stock is expensive relative to its fundamentals. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Guangdong Investment and its competitors. For the Utilities - Regulated industry, the median Piotroski F-Score is 6.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Guangdong Investment's current Piotroski F-Score is 8, which is 60% above median its own 10-year median of 5.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Guangdong Investment stock overvalued right now?
Based on GuruFocus' analysis, Guangdong Investment (STU:GUG) is currently considered Significantly Overvalued. The stock's GF Value™ is €0.62, compared to a current price of €0.86 — trading 39% above its estimated fair value. The current Piotroski F-Score is 8, which is 60% above median its 10-year median of 5.00 and 33.3% above the Utilities - Regulated industry median of 6.00. Guangdong Investment's overall GF Score™ is 38/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Piotroski F-Score calculated?
Piotroski F-Score is calculated from a company's financial statements. For Guangdong Investment (STU:GUG), the current Piotroski F-Score is 8 as of Jun. 27, 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 Guangdong Investment (STU:GUG) Overvalued in 2026?
Based on GuruFocus' analysis, Guangdong Investment stock appears to be overvalued.
The current stock price of €0.86 is trading 39% above its estimated GF Value™ of €0.62.
GuruFocus considers Guangdong Investment to be Significantly Overvalued.
Key valuation signals for STU:GUG:
Piotroski F-Score: 8 (60% above median its 10-year median of 5.00)
GF Value™: €0.62 vs. price of €0.86 (39% above fair value)
Industry Position: 33.3% above the Utilities - Regulated median (#12 of 491)
No single metric tells the full story. See the STU:GUG stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Guangdong Investment Ltd is engaged in investment holding. The segments of the company include Water resources, Property investment, Department store operation, Electric power generation, Hotel operation and management, Road and bridge segment, and Others segment. The company derives its revenue from the Water resources segment that engages in water distribution, sewage treatment, and construction of water supply and sewage treatment infrastructure for customers in Mainland China and Hong Kong. Geographically, the company generates almost all of its revenue from the Mainland China.
38GF Score
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