Sai Gon Water Infrastructure (HSTC:SII) Piotroski F-Score: 3 (As of Aug. 13, 2026) — 40% Below Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

HSTC:SII Sai Gon Water Infrastructure Corp HSTC:SII
84 GF Score
Price ₫16,000.00
GF Value ₫19,190.32
Valuation Modestly Undervalued
! 3 Warning Signs
View Full Analysis

What is Sai Gon Water Infrastructure Piotroski F-Score?

Sai Gon Water Infrastructure HSTC:SII 84 Piotroski F-Score is 3 as of Aug. 13, 2026, which is 40% below its 10-year median of 5.00. GuruFocus rates HSTC:SII with a GF Score™ of 84/100 and a GF Value™ of ₫19,190.32 (Modestly Undervalued). The stock has 3 warning signs investors should review. Among 1,735 Construction companies, Sai Gon Water Infrastructure ranks worse than 83.34% on this metric.

Warning Sign:

Piotroski F-Score of 3 is low, which usually implies poor business operation.

The zones of discrimination were as such:

Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3

Sai Gon Water Infrastructure has an F-score of 3. It is a bad or low score, which usually implies poor business operation.

The historical rank and industry rank for Sai Gon Water Infrastructure's Piotroski F-Score or its related term are showing as below:

HSTC:SII' s Piotroski F-Score Range Over the Past 10 Years
Min: 3   Med: 5   Max: 8
Current: 3

During the past 13 years, the highest Piotroski F-Score of Sai Gon Water Infrastructure was 8. The lowest was 3. And the median was 5.

Sai Gon Water Infrastructure  (HSTC:SII) Piotroski F-Score Explanation

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.

In 2000, he wrote a research paper called "Value Investing: The Use of Historical Financial Statement Information to Separate Winners from Losers" (pdf).

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.


Sai Gon Water Infrastructure Piotroski F-Score Related Terms


Sai Gon Water Infrastructure Piotroski F-Score Historical Data

* Premium members only.

The historical data trend for Sai Gon Water Infrastructure'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.

Sai Gon Water Infrastructure Piotroski F-Score Chart

Sai Gon Water Infrastructure Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Piotroski F-Score
Get a 7-Day Free Trial Premium Member Only Premium Member Only 6.00 7.00 5.00 8.00 5.00

Sai Gon Water Infrastructure Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Piotroski F-Score Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 8.00 7.00 5.00 3.00 3.00

HSTC:SII vs PWR, FIX, EME: Piotroski F-Score Comparison

For the Engineering & Construction subindustry, Sai Gon Water Infrastructure'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.


Sai Gon Water Infrastructure Piotroski F-Score vs Construction Industry

For the Construction industry and Industrials sector, Sai Gon Water Infrastructure's Piotroski F-Score distribution charts can be found below:

* The bar in red indicates where Sai Gon Water Infrastructure's Piotroski F-Score falls into.


HSTC:SII
84GF Score
Sai Gon Water Infrastructure Corp HSTC:SII
Piotroski F-Score is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

How is the Piotroski F-Score calculated?

* 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.

This Year (Jun26) TTM:Last Year (Jun25) TTM:
Net Income was -6258.389 + 36672.15 + -10072.511 + -8118.542 = ₫12,223 Mil.
Cash Flow from Operations was 57720.661 + -157129.325 + -112513.401 + 38045.758 = ₫-173,876 Mil.
Revenue was 71519.367 + 70234.651 + 74361.067 + 79840.605 = ₫295,956 Mil.
Gross Profit was 2379.432 + 1869.178 + 3672.132 + 6199.636 = ₫14,120 Mil.
Average Total Assets from the begining of this year (Jun25)
to the end of this year (Jun26) was
(2802620.317 + 2892483.897 + 2930962.245 + 2856798.423 + 2858520.338) / 5 = ₫2868277.044 Mil.
Total Assets at the begining of this year (Jun25) was ₫2,802,620 Mil.
Long-Term Debt & Capital Lease Obligation was ₫510,297 Mil.
Total Current Assets was ₫831,989 Mil.
Total Current Liabilities was ₫534,899 Mil.
Net Income was -4723.385 + 673427.768 + -51436.763 + 29562.351 = ₫646,830 Mil.

Revenue was 66609.588 + 65056.077 + 69709.77 + 74611.817 = ₫275,987 Mil.
Gross Profit was 2382.159 + 1690.431 + 3712.911 + 5288.841 = ₫13,074 Mil.
Average Total Assets from the begining of last year (Jun24)
to the end of last year (Jun25) was
(2189144.641 + 2182826.747 + 2851733.89 + 2794475.75 + 2802620.317) / 5 = ₫2564160.269 Mil.
Total Assets at the begining of last year (Jun24) was ₫2,189,145 Mil.
Long-Term Debt & Capital Lease Obligation was ₫443,152 Mil.
Total Current Assets was ₫1,094,507 Mil.
Total Current Liabilities was ₫362,027 Mil.

*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.

Sai Gon Water Infrastructure's current Net Income (TTM) was 12,223. ==> 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.

Score 1 if positive, 0 if negative.

Sai Gon Water Infrastructure's current Cash Flow from Operations (TTM) was -173,876. ==> Negative ==> Score 0.

Question 3. Change in Return on Assets

Compare this year's return on assets (1) to last year's return on assets.

Score 1 if it's higher, 0 if it's lower.

ROA (This Year)=Net Income/Total Assets (Jun25)
=12222.708/2802620.317
=0.00436117

ROA (Last Year)=Net Income/Total Assets (Jun24)
=646829.971/2189144.641
=0.29547155

Sai Gon Water Infrastructure's return on assets of this year was 0.00436117. Sai Gon Water Infrastructure's return on assets of last year was 0.29547155. ==> Last year is higher ==> Score 0.

Question 4. Quality of Earnings (Accrual)

Compare Cash flow return on assets (2) to return on assets (1)

Score 1 if CFROA > ROA, 0 if CFROA <= ROA.

Sai Gon Water Infrastructure's current Net Income (TTM) was 12,223. Sai Gon Water Infrastructure's current Cash Flow from Operations (TTM) was -173,876. ==> -173,876 <= 12,223 ==> CFROA <= ROA ==> Score 0.

Funding

Question 5. Change in Gearing or Leverage

Compare this year's gearing (long-term debt divided by average total assets) to last year's gearing.

Score 0 if this year's gearing is higher, 1 otherwise.

Gearing (This Year: Jun26)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Jun25 to Jun26
=510296.769/2868277.044
=0.17791056

Gearing (Last Year: Jun25)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Jun24 to Jun25
=443151.606/2564160.269
=0.17282524

Sai Gon Water Infrastructure's gearing of this year was 0.17791056. Sai Gon Water Infrastructure's gearing of last year was 0.17282524. ==> Last year is lower than this year ==> Score 0.

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

Current Ratio (This Year: Jun26)=Total Current Assets/Total Current Liabilities
=831988.989/534898.864
=1.55541364

Current Ratio (Last Year: Jun25)=Total Current Assets/Total Current Liabilities
=1094506.773/362027.148
=3.02327264

Sai Gon Water Infrastructure's current ratio of this year was 1.55541364. Sai Gon Water Infrastructure's current ratio of last year was 3.02327264. ==> Last year's current ratio is higher ==> Score 0.

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.

Sai Gon Water Infrastructure's number of shares in issue this year was 64.522. Sai Gon Water Infrastructure's number of shares in issue last year was 64.522. ==> 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.

Gross Margin (This Year: TTM)=Gross Profit/Revenue
=14120.378/295955.69
=0.04771112

Gross Margin (Last Year: TTM)=Gross Profit/Revenue
=13074.342/275987.252
=0.04737299

Sai Gon Water Infrastructure's gross margin of this year was 0.04771112. Sai Gon Water Infrastructure's gross margin of last year was 0.04737299. ==> 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

Asset Turnover (This Year)=Revenue/Total Assets at the Beginning of This Year (Jun25)
=295955.69/2802620.317
=0.10559964

Asset Turnover (Last Year)=Revenue/Total Assets at the Beginning of Last Year (Jun24)
=275987.252/2189144.641
=0.12607082

Sai Gon Water Infrastructure's asset turnover of this year was 0.10559964. Sai Gon Water Infrastructure's asset turnover of last year was 0.12607082. ==> Last year's asset turnover is higher ==> Score 0.

Evaluation

Piotroski F-Score= Que. 1+ Que. 2+ Que. 3+Que. 4+Que. 5+Que. 6+Que. 7+Que. 8+Que. 9
=1+0+0+0+0+0+1+1+0
=3

Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3

Sai Gon Water Infrastructure has an F-score of 3. It is a bad or low score, which usually implies poor business operation.

Frequently Asked Questions Learn more about Piotroski F-Score →
What does a Piotroski F-Score of 3 mean?
Sai Gon Water Infrastructure (HSTC:SII) has a Piotroski F-Score of 3 as of Aug. 13, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Sai Gon Water Infrastructure and its competitors. This is 40% below median its historical median of 5.00. Over the past decade, Sai Gon Water Infrastructure's Piotroski F-Score has ranged from 3.00 to 8.00. According to the industry distribution chart, Sai Gon Water Infrastructure ranks #1446 out of 1735 companies in the Construction industry, placing it in the top 83.3%.
Is Sai Gon Water Infrastructure's Piotroski F-Score too high?
Sai Gon Water Infrastructure's current Piotroski F-Score of 3 is 40% below 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 Construction industry median Piotroski F-Score is 5.00. Sai Gon Water Infrastructure's value of 3 is 40% below this industry median. Based on the distribution chart, Sai Gon Water Infrastructure ranks #1446 out of 1735 companies in the Construction industry, which is in the bottom quartile relative to peers. Overall, Sai Gon Water Infrastructure has a GF Score™ of 84/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Sai Gon Water Infrastructure's Piotroski F-Score compare to PWR and FIX?
According to the Construction industry distribution chart, Sai Gon Water Infrastructure ranks #1446 out of 1735 companies for Piotroski F-Score. This places Sai Gon Water Infrastructure in the lower half of its industry. The industry median Piotroski F-Score is 5.00. Sai Gon Water Infrastructure's value of 3 is 40% below this benchmark. Historically, Sai Gon Water Infrastructure'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 5.00, Sai Gon Water Infrastructure has consistently been below 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 a Construction company?
The median Piotroski F-Score among Construction companies is 5.00, based on 1,735 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. Sai Gon Water Infrastructure's current Piotroski F-Score of 3 is 40% below 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 Sai Gon Water Infrastructure and its competitors. For the Construction industry, the median Piotroski F-Score is 5.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sai Gon Water Infrastructure's current Piotroski F-Score is 3, which is 40% below 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 Sai Gon Water Infrastructure stock overvalued right now?
Based on GuruFocus' analysis, Sai Gon Water Infrastructure (HSTC:SII) is currently considered Modestly Undervalued. The stock's GF Value™ is ₫19,190.32, compared to a current price of ₫16,000.00 — trading 16.6% below its estimated fair value. The current Piotroski F-Score is 3, which is 40% below median its 10-year median of 5.00 and 40% below the Construction industry median of 5.00. Sai Gon Water Infrastructure's overall GF Score™ is 84/100 with 3 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 Sai Gon Water Infrastructure (HSTC:SII), the current Piotroski F-Score is 3 as of Aug. 13, 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 Sai Gon Water Infrastructure (HSTC:SII) Overvalued in 2026?

Based on GuruFocus' analysis, Sai Gon Water Infrastructure stock appears to be undervalued. The current stock price of ₫16,000.00 is trading 16.6% below its estimated GF Value™ of ₫19,190.32. GuruFocus considers Sai Gon Water Infrastructure to be Modestly Undervalued.

Key valuation signals for HSTC:SII:

  • Piotroski F-Score: 3 (40% below median its 10-year median of 5.00)
  • GF Value™: ₫19,190.32 vs. price of ₫16,000.00 (16.6% below fair value)
  • GF Score™: 84/100 with 3 warning signs
  • Industry Position: 40% below the Construction median (#1446 of 1735)

No single metric tells the full story. See the HSTC:SII stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Sai Gon Water Infrastructure Business Description

Address 220Bis Nguyen Huu Canh, Tasco Building, Ward 22, Binh Thanh District, Ho Chi Minh City, VNM
Sai Gon Water Infrastructure Corp is a Vietnam-based company engaged in providing solutions for water in water and sewage treatment industry. The company offers water and wastewater management services to municipal entities, businesses, and manufacturers. The main activities of the company include investment, supplying technology solutions, and operation services for water supply and sewage treatment entities.
84GF Score

Get the complete analysis for HSTC:SII

Piotroski F-Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

₫16,000.00
Price
₫19,190.32
GF Value