Formosa PetrochemicalTPE:6505 88 PE Ratio (TTM) is 56.70 as of Jul. 11, 2026, which is 135% above its 10-year median of 24.09. GuruFocus rates TPE:6505 with a GF Score™ of 88/100 and a GF Value™ of NT$57.77 (Fairly Valued). The stock has 7 warning signs investors should review. Among 617 Oil & Gas companies, Formosa Petrochemical ranks worse than 90.76% on this metric.
The PE Ratio (TTM), or Price-to-Earnings ratio, or P/E Ratio, is a financial ratio used to compare a company's market price to its Earnings per Share (Diluted). As of today (2026-07-11), Formosa Petrochemical's share price is
NT$58.80.
Formosa Petrochemical's Earnings per Share (Diluted) for the trailing twelve months (TTM) ended in Dec. 2025 was NT$1.04. Therefore, Formosa Petrochemical's PE Ratio (TTM) for today is 56.70.
The historical rank and industry rank for Formosa Petrochemical's PE Ratio (TTM) or its related term are showing as below:
TPE:6505'
s PE Ratio (TTM) Range Over the Past 10 Years
Min: 11.28 Med: 24.09 Max: 987.78
Current: 56.7
During the past 13 years, the highest PE Ratio (TTM) of Formosa Petrochemical was 987.78. The lowest was 11.28. And the median was 24.09.
TPE:6505's PE Ratio (TTM) is ranked worse than 90.76% of 617
companies
in the Oil & Gas industry
Industry Median: 14.38
vs TPE:6505: 56.70
During the past 12 months, Formosa Petrochemical's average EPS without NRIGrowth Rate was 65.60% per year.
During the past 3 years, the average EPS without NRIGrowth Rate was -11.70% per year.
During the past 5 years, the average EPS without NRIGrowth Rate was -11.90% per year.
During the past 10 years, the average EPS without NRIGrowth Rate was -19.90% per year.
During the past 13 years, Formosa Petrochemical's highest 3-Year average EPS without NRI Growth Rate was 157.80% per year. The lowest was -60.20% per year. And the median was -11.70% per year.
Formosa Petrochemical's EPS (Basic) for the
three
months ended in Dec. 2025 was NT$0.54.
Its EPS (Basic) for the trailing twelve months (TTM) ended in Dec. 2025 was NT$1.04.
Formosa Petrochemical (TPE:6505) PE Ratio (TTM) Explanation
The PE Ratio (TTM) can be viewed as the number of years it takes for the company to earn back the price you pay for the stock. For example, if a company earns $2 a share per year, and the stock is traded at $30, the PE Ratio (TTM) is 15. Therefore it takes 15 years for the company to earn back the $30 you paid for its stock, assuming the earnings stays constant over the next 15 years.
In real business, earnings never stay constant. If a company can grow its earnings, it takes fewer years for the company to earn back the price you pay for the stock. If a company's earnings decline it takes more years. As a shareholder, you want the company to earn back the price you pay as soon as possible. Therefore, lower P/E stocks are more attractive than higher P/E stocks so long as the PE Ratio (TTM) is positive. Also for stocks with the same PE Ratio (TTM), the one with faster growth business is more attractive.
If a company loses money, the PE Ratio (TTM) becomes meaningless.
To compare stocks with different growth rates, Peter Lynch invented a ratio called PEG Ratio. PEG Ratio is defined as the PE Ratio (TTM) divided by the growth ratio. He thinks a company with a PE Ratio (TTM) equal to its growth rate is fairly valued. Still he said he would rather buy a company growing 20% a year with a PE Ratio (TTM) of 20, instead of a company growing 10% a year with a PE Ratio (TTM) of 10.
Because the PE Ratio (TTM) measures how long it takes to earn back the price you pay, the PE Ratio (TTM) can be applied to the stocks across different industries. That is why it is the one of the most important and widely used indicators for the valuation of stocks.
Investors need to be aware that the PE Ratio (TTM) can be misleading a lot of times, especially when the underlying business is cyclical and unpredictable. As Peter Lynch pointed out, cyclical businesses have higher profit margins at the peaks of the business cycles. Their earnings are high and PE Ratio (TTM)s are artificially low. It is usually a bad idea to buy a cyclical business when the PE Ratio (TTM) is low. A better ratio to identify the time to buy a cyclical businesses is the PS Ratio .
PE Ratio (TTM) can also be affected by non-recurring-items such as the sale of part of businesses. This may increase for the current year or quarter dramatically. But it cannot be repeated over and over. Therefore PE Ratio without NRI is a more accurate indication of valuation than PE Ratio (TTM).
Formosa Petrochemical PE Ratio (TTM) Related Terms
Formosa Petrochemical PE Ratio (TTM) Historical Data
* Premium members only.
The historical data trend for Formosa Petrochemical's PE Ratio (TTM) 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.
TPE:6505 vs VLO, MPC, PSX: PE Ratio (TTM) Comparison
For the Oil & Gas Refining & Marketing subindustry, Formosa Petrochemical's PE Ratio (TTM), along with its competitors' market caps and PE Ratio (TTM) 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 PE Ratio (TTM) vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Formosa Petrochemical's PE Ratio (TTM) distribution charts can be found below:
* The bar in red indicates where Formosa Petrochemical's PE Ratio (TTM) falls into.
The PE Ratio (TTM), or Price-to-Earnings ratio, or P/E Ratio, is a financial ratio used to compare a company's market price to its Earnings per Share (Diluted). It is the most widely used ratio in the valuation of stocks.
Formosa Petrochemical's Share Price of today is NT$58.80.
Formosa Petrochemical's Earnings per Share (Diluted) for the trailing twelve months (TTM) ended in Dec. 2025 adds up the quarterly data reported by the company within the most recent 12 months, which was NT$1.04.
* 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.
It can also be calculated from the numbers for the whole company:
There are at least three kinds of PE Ratio (TTM)s used by different investors. They are Trailing Twelve Month PE Ratio (TTM) or PE Ratio (TTM) (TTM), Forward PE Ratio, or PE Ratio without NRI. A new PE Ratio (TTM) based on inflation-adjusted normalized PE Ratio (TTM) is called Shiller PE Ratio, after Yale professor Robert Shiller.
In the calculation of PE Ratio (TTM), the earnings per share used are the earnings per share over the past 12 months. For Forward PE Ratio, the earnings are the expected earnings for the next twelve months. In the case of PE Ratio without NRI, the reported earnings less the non-recurring items are used.
For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. Since it looks at the average over the last 10 years, Shiller PE Ratio is also called PE10.
Formosa Petrochemical (TPE:6505) has a PE Ratio (TTM) of 56.70 as of Jul. 11, 2026. Trailing 12-month P/E ratio is the ratio of share price to a company's trailing 12-month earnings per share. View historical data on Formosa Petrochemical and its competitors. This is 135% above median its historical median of 24.09. Over the past decade, Formosa Petrochemical's PE Ratio (TTM) has ranged from 11.28 to 987.78. According to the industry distribution chart, Formosa Petrochemical ranks #560 out of 617 companies in the Oil & Gas industry, placing it in the top 90.8%.
Is Formosa Petrochemical's PE Ratio (TTM) too high?
Formosa Petrochemical's current PE Ratio (TTM) of 56.70 is 135% above median its 10-year median of 24.09. Over the past 10 years, this metric has ranged from a low of 11.28 to a high of 987.78. The Oil & Gas industry median PE Ratio (TTM) is 14.38. Formosa Petrochemical's value of 56.70 is 294.3% above this industry median. Based on the distribution chart, Formosa Petrochemical ranks #560 out of 617 companies in the Oil & Gas industry, which is in the bottom quartile relative to peers. Overall, Formosa Petrochemical has a GF Score™ of 88/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Formosa Petrochemical's PE Ratio (TTM) compare to VLO and MPC?
According to the Oil & Gas industry distribution chart, Formosa Petrochemical ranks #560 out of 617 companies for PE Ratio (TTM). This places Formosa Petrochemical in the lower half of its industry. The industry median PE Ratio (TTM) is 14.38. Formosa Petrochemical's value of 56.70 is 294.3% above this benchmark. Historically, Formosa Petrochemical's own PE Ratio (TTM) has ranged from 11.28 to 987.78 over the past decade. While the company's 10-year median is 24.09 vs. the industry median of 14.38, 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 PE Ratio (TTM) for an Oil & Gas company?
The median PE Ratio (TTM) among Oil & Gas companies is 14.38, based on 617 companies in the industry. Companies in the top quartile (top 25%) have a PE Ratio (TTM) significantly above this median, while those in the bottom quartile fall well below. However, PE Ratio (TTM) should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Formosa Petrochemical's current PE Ratio (TTM) of 56.70 is 294.3% 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 PE Ratio (TTM) mean?
A high PE Ratio (TTM) can signal that a stock is expensive relative to its fundamentals. Trailing 12-month P/E ratio is the ratio of share price to a company's trailing 12-month earnings per share. View historical data on Formosa Petrochemical and its competitors. For the Oil & Gas industry, the median PE Ratio (TTM) is 14.38 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Formosa Petrochemical's current PE Ratio (TTM) is 56.70, which is 135% above median its own 10-year median of 24.09. 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$57.77, compared to a current price of NT$58.80 — trading 1.8% above its estimated fair value. The current PE Ratio (TTM) is 56.70, which is 135% above median its 10-year median of 24.09 and 294.3% above the Oil & Gas industry median of 14.38. Formosa Petrochemical's overall GF Score™ is 88/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PE Ratio (TTM) calculated?
PE Ratio (TTM) is calculated from a company's financial statements. For Formosa Petrochemical (TPE:6505), the current PE Ratio (TTM) is 56.70 as of Jul. 11, 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 overvalued.
The current stock price of NT$58.80 is trading 1.8% above its estimated GF Value™ of NT$57.77.
GuruFocus considers Formosa Petrochemical to be Fairly Valued.
Key valuation signals for TPE:6505:
PE Ratio (TTM): 56.70 (135% above median its 10-year median of 24.09)
GF Value™: NT$57.77 vs. price of NT$58.80 (1.8% above fair value)
Industry Position: 294.3% above the Oil & Gas median (#560 of 617)
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 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.
88GF Score
Get the complete analysis for TPE:6505
PE Ratio (TTM) is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
TPE:6505 has been successfully added to your 
