Formosa Petrochemical (TPE:6505) Piotroski F-Score: 9 (As of Jun. 27, 2026) — 50% Above Median


TPE:6505 Formosa Petrochemical Corp TPE:6505
89 GF Score
Price NT$53.50
GF Value NT$57.54
Valuation Fairly Valued
! 4 Warning Signs
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What is Formosa Petrochemical Piotroski F-Score?

Formosa Petrochemical TPE:6505 -4.29% 89 Piotroski F-Score is 9 as of Jun. 27, 2026, which is 50% above its 10-year median of 6.00. GuruFocus rates TPE:6505 with a GF Score™ of 89/100 and a GF Value™ of NT$57.54 (Fairly Valued). The stock has 4 warning signs investors should review. Among 974 Oil & Gas companies, Formosa Petrochemical ranks better than 99.9% on this metric.

Good Sign:

Piotroski F-Score is 9, 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

Formosa Petrochemical has an F-score of 9. It is a good or high score, which usually indicates a very healthy situation.

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

TPE:6505' s Piotroski F-Score Range Over the Past 10 Years
Min: 4   Med: 6   Max: 9
Current: 9

During the past 13 years, the highest Piotroski F-Score of Formosa Petrochemical was 9. The lowest was 4. And the median was 6.

Formosa Petrochemical  (TPE:6505) 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.


Formosa Petrochemical Piotroski F-Score Related Terms


Formosa Petrochemical Piotroski F-Score Historical Data

* Premium members only.

The historical data trend for Formosa Petrochemical'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.

Formosa Petrochemical Piotroski F-Score Chart

Formosa Petrochemical 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 7.00 4.00 8.00 5.00 9.00

Formosa Petrochemical Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
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 5.00 6.00 4.00 8.00 9.00

TPE:6505 vs VLO, MPC, PSX: Piotroski F-Score Comparison

For the Oil & Gas Refining & Marketing subindustry, Formosa Petrochemical'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.


Formosa Petrochemical Piotroski F-Score vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, Formosa Petrochemical's Piotroski F-Score distribution charts can be found below:

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


TPE:6505
89GF Score
Formosa Petrochemical Corp TPE:6505
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 (Dec25) TTM:Last Year (Dec24) TTM:
Net Income was 3684.794 + -7504.503 + 8584.054 + 5110.99 = NT$9,875 Mil.
Cash Flow from Operations was 13016.293 + 6656.115 + 15576.068 + 8243.889 = NT$43,492 Mil.
Revenue was 173267.286 + 145547.484 + 163529.261 + 143815.065 = NT$626,159 Mil.
Gross Profit was 6604.756 + -4646.931 + 11958.107 + 8152.371 = NT$22,068 Mil.
Average Total Assets from the begining of this year (Dec24)
to the end of this year (Dec25) was
(371199.649 + 379391.611 + 365532.888 + 375995.648 + 416461.476) / 5 = NT$381716.2544 Mil.
Total Assets at the begining of this year (Dec24) was NT$371,200 Mil.
Long-Term Debt & Capital Lease Obligation was NT$11,236 Mil.
Total Current Assets was NT$257,047 Mil.
Total Current Liabilities was NT$39,297 Mil.
Net Income was 5026.286 + 2732.138 + -3082.093 + 1294.587 = NT$5,971 Mil.

Revenue was 171196.938 + 170616.35 + 173189.705 + 148820.054 = NT$663,823 Mil.
Gross Profit was 6066.351 + 4036.387 + -2177.454 + 2388.501 = NT$10,314 Mil.
Average Total Assets from the begining of last year (Dec23)
to the end of last year (Dec24) was
(416161.627 + 418834.624 + 428619.969 + 383911.945 + 371199.649) / 5 = NT$403745.5628 Mil.
Total Assets at the begining of last year (Dec23) was NT$416,162 Mil.
Long-Term Debt & Capital Lease Obligation was NT$18,194 Mil.
Total Current Assets was NT$207,314 Mil.
Total Current Liabilities was NT$45,933 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.

Formosa Petrochemical's current Net Income (TTM) was 9,875. ==> 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.

Formosa Petrochemical's current Cash Flow from Operations (TTM) was 43,492. ==> Positive ==> Score 1.

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 (Dec24)
=9875.335/371199.649
=0.02660384

ROA (Last Year)=Net Income/Total Assets (Dec23)
=5970.918/416161.627
=0.01434759

Formosa Petrochemical's return on assets of this year was 0.02660384. Formosa Petrochemical's return on assets of last year was 0.01434759. ==> This year is higher. ==> Score 1.

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.

Formosa Petrochemical's current Net Income (TTM) was 9,875. Formosa Petrochemical's current Cash Flow from Operations (TTM) was 43,492. ==> 43,492 > 9,875 ==> CFROA > ROA ==> Score 1.

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: Dec25)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Dec24 to Dec25
=11236.495/381716.2544
=0.02943677

Gearing (Last Year: Dec24)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Dec23 to Dec24
=18193.777/403745.5628
=0.04506248

Formosa Petrochemical's gearing of this year was 0.02943677. Formosa Petrochemical's gearing of last year was 0.04506248. ==> 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: Dec25)=Total Current Assets/Total Current Liabilities
=257046.882/39297.304
=6.54108185

Current Ratio (Last Year: Dec24)=Total Current Assets/Total Current Liabilities
=207313.934/45932.865
=4.51341178

Formosa Petrochemical's current ratio of this year was 6.54108185. Formosa Petrochemical's current ratio of last year was 4.51341178. ==> 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.

Formosa Petrochemical's number of shares in issue this year was 9525.96. Formosa Petrochemical's number of shares in issue last year was 9525.96. ==> 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
=22068.303/626159.096
=0.03524392

Gross Margin (Last Year: TTM)=Gross Profit/Revenue
=10313.785/663823.047
=0.01553695

Formosa Petrochemical's gross margin of this year was 0.03524392. Formosa Petrochemical's gross margin of last year was 0.01553695. ==> 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 (Dec24)
=626159.096/371199.649
=1.68685261

Asset Turnover (Last Year)=Revenue/Total Assets at the Beginning of Last Year (Dec23)
=663823.047/416161.627
=1.59510874

Formosa Petrochemical's asset turnover of this year was 1.68685261. Formosa Petrochemical's asset turnover of last year was 1.59510874. ==> 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+1+1+1+1+1+1+1+1
=9

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

Formosa Petrochemical has an F-score of 9. It is a good or high score, which usually indicates a very healthy situation.

Frequently Asked Questions Learn more about Piotroski F-Score →
What does a Piotroski F-Score of 9 mean?
Formosa Petrochemical (TPE:6505) has a Piotroski F-Score of 9 as of Jun. 27, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Formosa Petrochemical and its competitors. This is 50% above median its historical median of 6.00. Over the past decade, Formosa Petrochemical's Piotroski F-Score has ranged from 4.00 to 9.00. According to the industry distribution chart, Formosa Petrochemical ranks #1 out of 974 companies in the Oil & Gas industry, placing it in the top 0.099999999999994%.
Is Formosa Petrochemical's Piotroski F-Score too high?
Formosa Petrochemical's current Piotroski F-Score of 9 is 50% above median its 10-year median of 6.00. Over the past 10 years, this metric has ranged from a low of 4.00 to a high of 9.00. The Oil & Gas industry median Piotroski F-Score is 5.00. Formosa Petrochemical's value of 9 is 80% above this industry median. Based on the distribution chart, Formosa Petrochemical ranks #1 out of 974 companies in the Oil & Gas industry, which is in the top quartile — a strong position relative to peers. Overall, Formosa Petrochemical has a GF Score™ of 89/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Formosa Petrochemical's Piotroski F-Score compare to VLO and MPC?
According to the Oil & Gas industry distribution chart, Formosa Petrochemical ranks #1 out of 974 companies for Piotroski F-Score. This places Formosa Petrochemical in the top 0% of its industry — outperforming the majority of peers. The industry median Piotroski F-Score is 5.00. Formosa Petrochemical's value of 9 is 80% above this benchmark. Historically, Formosa Petrochemical's own Piotroski F-Score has ranged from 4.00 to 9.00 over the past decade. While the company's 10-year median is 6.00 vs. the industry median of 5.00, Formosa Petrochemical 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 Oil & Gas company?
The median Piotroski F-Score among Oil & Gas companies is 5.00, based on 974 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. Formosa Petrochemical's current Piotroski F-Score of 9 is 80% 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 Formosa Petrochemical and its competitors. For the Oil & Gas 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. Formosa Petrochemical's current Piotroski F-Score is 9, which is 50% above median its own 10-year median of 6.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Formosa Petrochemical stock overvalued right now?
Based on GuruFocus' analysis, Formosa Petrochemical (TPE:6505) is currently considered Fairly Valued. The stock's GF Value™ is NT$57.54, compared to a current price of NT$53.50 — trading 7% below its estimated fair value. The current Piotroski F-Score is 9, which is 50% above median its 10-year median of 6.00 and 80% above the Oil & Gas industry median of 5.00. Formosa Petrochemical's overall GF Score™ is 89/100 with 4 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 Formosa Petrochemical (TPE:6505), the current Piotroski F-Score is 9 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 Formosa Petrochemical (TPE:6505) Overvalued in 2026?

Based on GuruFocus' analysis, Formosa Petrochemical stock appears to be undervalued. The current stock price of NT$53.50 is trading 7% below its estimated GF Value™ of NT$57.54. GuruFocus considers Formosa Petrochemical to be Fairly Valued.

Key valuation signals for TPE:6505:

  • Piotroski F-Score: 9 (50% above median its 10-year median of 6.00)
  • GF Value™: NT$57.54 vs. price of NT$53.50 (7% below fair value)
  • GF Score™: 89/100 with 4 warning signs
  • Industry Position: 80% above the Oil & Gas median (#1 of 974)

No single metric tells the full story. See the TPE:6505 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Formosa Petrochemical Business Description

Industry EnergyOil & Gas
Address No. 1-1, Formosa Plastics Industrial Park, Zhongxing Village, Mailiao Township, Yunlin County, Taipei, TWN, 638
Formosa Petrochemical Corp engages in the Operation of refinery of petroleum and integrated manufacture of hydrocarbon. The firm operates in two segments. The Petrochemical segment that derives majority revenue engages in producing and selling petroleum, and petrochemical products. The Public utility segment engages in producing and selling water, electricity, and steam. Its product offerings comprise gasoline, jet fuel, kerosene, fuel oil, asphalt, sulfur, lubricant, diesel, naphtha, and liquid petroleum gas.
89GF Score

Get the complete analysis for TPE:6505

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

NT$53.50
Price
NT$57.54
GF Value