KOSY JSC (HSTC:KOS) Piotroski F-Score: 4 (As of Jun. 27, 2026) — Near Median


HSTC:KOS KOSY JSC HSTC:KOS
82 GF Score
Price ₫19,319.73
GF Value ₫24,056.18
! 6 Warning Signs
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What is KOSY JSC Piotroski F-Score?

KOSY JSC HSTC:KOS 82 Piotroski F-Score is 4 as of Jun. 27, 2026, which is at its 10-year median of 4.00. GuruFocus rates HSTC:KOS with a GF Score™ of 82/100 and a GF Value™ of ₫24,056.18. The stock has 6 warning signs investors should review. Among 1,756 Real Estate companies, KOSY JSC ranks worse than 61.96% on this metric.

The zones of discrimination were as such:

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

KOSY JSC has an F-score of 4 indicating the company's financial situation is typical for a stable company.

The historical rank and industry rank for KOSY JSC's Piotroski F-Score or its related term are showing as below:

HSTC:KOS' s Piotroski F-Score Range Over the Past 10 Years
Min: 2   Med: 4   Max: 8
Current: 4

During the past 8 years, the highest Piotroski F-Score of KOSY JSC was 8. The lowest was 2. And the median was 4.

KOSY JSC  (HSTC:KOS) 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.


KOSY JSC Piotroski F-Score Related Terms


KOSY JSC Piotroski F-Score Historical Data

* Premium members only.

The historical data trend for KOSY JSC'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.

KOSY JSC Piotroski F-Score Chart

KOSY JSC Annual Data
Trend Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Piotroski F-Score
Get a 7-Day Free Trial 2.00 3.00 7.00 8.00 4.00

KOSY JSC Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 5.00 5.00 4.00 4.00

KOSY JSC Piotroski F-Score Competitor Comparison

For the Real Estate - Development subindustry, KOSY JSC'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.


KOSY JSC Piotroski F-Score vs Real Estate Industry

For the Real Estate industry and Real Estate sector, KOSY JSC's Piotroski F-Score distribution charts can be found below:

* The bar in red indicates where KOSY JSC's Piotroski F-Score falls into.


HSTC:KOS
82GF Score
KOSY JSC HSTC:KOS
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 (Mar26) TTM:Last Year (Mar25) TTM:
Net Income was 3938.663 + 11013.011 + 891.467 + 2655.673 = ₫18,499 Mil.
Cash Flow from Operations was -24081.079 + 53227.422 + -74205.942 + -14027.797 = ₫-59,087 Mil.
Revenue was 436108.649 + 351764.591 + 540730.149 + 256962.276 = ₫1,585,566 Mil.
Gross Profit was 53232.187 + 42759.579 + 50827.707 + 27878.413 = ₫174,698 Mil.
Average Total Assets from the begining of this year (Mar25)
to the end of this year (Mar26) was
(4837119.976 + 4803272.593 + 4844553.395 + 4866349.021 + 5006039.613) / 5 = ₫4871466.9196 Mil.
Total Assets at the begining of this year (Mar25) was ₫4,837,120 Mil.
Long-Term Debt & Capital Lease Obligation was ₫1,022,904 Mil.
Total Current Assets was ₫3,476,298 Mil.
Total Current Liabilities was ₫1,625,434 Mil.
Net Income was 10180.938 + 11225.391 + 1702.895 + 2609.041 = ₫25,718 Mil.

Revenue was 461337.923 + 304738.998 + 435553.551 + 226684.296 = ₫1,428,315 Mil.
Gross Profit was 59278.157 + 44663.686 + 36687.142 + 26783.623 = ₫167,413 Mil.
Average Total Assets from the begining of last year (Mar24)
to the end of last year (Mar25) was
(4751330.034 + 4743429.305 + 4753739.567 + 4851309.116 + 4837119.976) / 5 = ₫4787385.5996 Mil.
Total Assets at the begining of last year (Mar24) was ₫4,751,330 Mil.
Long-Term Debt & Capital Lease Obligation was ₫1,162,528 Mil.
Total Current Assets was ₫3,275,253 Mil.
Total Current Liabilities was ₫1,335,278 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.

KOSY JSC's current Net Income (TTM) was 18,499. ==> 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.

KOSY JSC's current Cash Flow from Operations (TTM) was -59,087. ==> 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 (Mar25)
=18498.814/4837119.976
=0.00382434

ROA (Last Year)=Net Income/Total Assets (Mar24)
=25718.265/4751330.034
=0.00541286

KOSY JSC's return on assets of this year was 0.00382434. KOSY JSC's return on assets of last year was 0.00541286. ==> 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.

KOSY JSC's current Net Income (TTM) was 18,499. KOSY JSC's current Cash Flow from Operations (TTM) was -59,087. ==> -59,087 <= 18,499 ==> 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: Mar26)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Mar25 to Mar26
=1022903.617/4871466.9196
=0.20997856

Gearing (Last Year: Mar25)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Mar24 to Mar25
=1162528.079/4787385.5996
=0.24283151

KOSY JSC's gearing of this year was 0.20997856. KOSY JSC's gearing of last year was 0.24283151. ==> 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

Current Ratio (This Year: Mar26)=Total Current Assets/Total Current Liabilities
=3476297.711/1625434.479
=2.13868831

Current Ratio (Last Year: Mar25)=Total Current Assets/Total Current Liabilities
=3275252.582/1335277.738
=2.45286242

KOSY JSC's current ratio of this year was 2.13868831. KOSY JSC's current ratio of last year was 2.45286242. ==> 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.

KOSY JSC's number of shares in issue this year was 216.436. KOSY JSC's number of shares in issue last year was 216.518. ==> 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
=174697.886/1585565.665
=0.11018016

Gross Margin (Last Year: TTM)=Gross Profit/Revenue
=167412.608/1428314.768
=0.11720988

KOSY JSC's gross margin of this year was 0.11018016. KOSY JSC's gross margin of last year was 0.11720988. ==> Last year's gross margin is higher ==> Score 0.

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 (Mar25)
=1585565.665/4837119.976
=0.32779126

Asset Turnover (Last Year)=Revenue/Total Assets at the Beginning of Last Year (Mar24)
=1428314.768/4751330.034
=0.30061367

KOSY JSC's asset turnover of this year was 0.32779126. KOSY JSC's asset turnover of last year was 0.30061367. ==> This year's asset turnover is higher. ==> Score 1.

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+1+0+1+0+1
=4

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

KOSY JSC has an F-score of 4 indicating the company's financial situation is typical for a stable company.

Frequently Asked Questions Learn more about Piotroski F-Score →
What does a Piotroski F-Score of 4 mean?
KOSY JSC (HSTC:KOS) has a Piotroski F-Score of 4 as of Jun. 27, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on KOSY JSC and its competitors. This is near median its historical median of 4.00. Over the past decade, KOSY JSC's Piotroski F-Score has ranged from 2.00 to 8.00. According to the industry distribution chart, KOSY JSC ranks #1088 out of 1756 companies in the Real Estate industry, placing it in the top 62%.
Is KOSY JSC's Piotroski F-Score too high?
KOSY JSC's current Piotroski F-Score of 4 is near median its 10-year median of 4.00. Over the past 10 years, this metric has ranged from a low of 2.00 to a high of 8.00. The Real Estate industry median Piotroski F-Score is 5.00. KOSY JSC's value of 4 is 20% below this industry median. Based on the distribution chart, KOSY JSC ranks #1088 out of 1756 companies in the Real Estate industry, which is below the industry midpoint. Overall, KOSY JSC has a GF Score™ of 82/100, reflecting its overall financial health beyond just this single metric.
How does KOSY JSC's Piotroski F-Score compare to competitors?
According to the Real Estate industry distribution chart, KOSY JSC ranks #1088 out of 1756 companies for Piotroski F-Score. This places KOSY JSC in the lower half of its industry. The industry median Piotroski F-Score is 5.00. KOSY JSC's value of 4 is 20% below this benchmark. Historically, KOSY JSC's own Piotroski F-Score has ranged from 2.00 to 8.00 over the past decade. While the company's 10-year median is 4.00 vs. the industry median of 5.00, KOSY JSC 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 Real Estate company?
The median Piotroski F-Score among Real Estate companies is 5.00, based on 1,756 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. KOSY JSC's current Piotroski F-Score of 4 is 20% 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 KOSY JSC and its competitors. For the Real Estate 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. KOSY JSC's current Piotroski F-Score is 4, which is near median its own 10-year median of 4.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is KOSY JSC stock overvalued right now?
KOSY JSC (HSTC:KOS) has a current Piotroski F-Score of 4. The stock's GF Value™ is ₫24,056.18, compared to a current price of ₫19,319.73 — trading 19.7% below its estimated fair value. The current Piotroski F-Score is 4, which is near median its 10-year median of 4.00 and 20% below the Real Estate industry median of 5.00. KOSY JSC's overall GF Score™ is 82/100 with 6 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 KOSY JSC (HSTC:KOS), the current Piotroski F-Score is 4 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 KOSY JSC (HSTC:KOS) Overvalued in 2026?

Based on GuruFocus' analysis, KOSY JSC stock appears to be undervalued. The current stock price of ₫19,319.73 is trading 19.7% below its estimated GF Value™ of ₫24,056.18.

Key valuation signals for HSTC:KOS:

  • Piotroski F-Score: 4 (near median its 10-year median of 4.00)
  • GF Value™: ₫24,056.18 vs. price of ₫19,319.73 (19.7% below fair value)
  • GF Score™: 82/100 with 6 warning signs
  • Industry Position: 20% below the Real Estate median (#1088 of 1756)

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


KOSY JSC Business Description

Other Exchanges KOS:Vietnam
Address B6-BT5, My Dinh 2 New Urban Area, Tu Liem Ward, Hanoi, VNM
KOSY JSC operates in the real estate business, including land use rights that are owned, used, or leased, specifically real estate trading, and the wholesale of construction materials and other installation equipment, specifically trading of construction materials. The Company operates through real estate, trading services, and hydroelectric segments, with trading services generating maximum revenue. Its revenue includes income from real estate transfers, construction materials, and asset leasing.
82GF Score

Get the complete analysis for HSTC:KOS

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

₫19,319.73
Price
₫24,056.18
GF Value