Formosa Petrochemical (TPE:6505) Effective Interest Rate on Debt %: 1.48% (As of Mar. 2026)

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TPE:6505 Formosa Petrochemical Corp TPE:6505
83 GF Score
Price NT$77.90
GF Value NT$54.58
Valuation Significantly Overvalued
! 5 Warning Signs
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What is Formosa Petrochemical Effective Interest Rate on Debt %?

Formosa Petrochemical TPE:6505 -9.21% 83 Effective Interest Rate on Debt % is 1.48% as of Mar. 2026. GuruFocus rates TPE:6505 with a GF Score™ of 83/100 and a GF Value™ of NT$54.58 (Significantly Overvalued). The stock has 5 warning signs investors should review.

Effective Interest Rate on Debt % is the usage rate that a borrower actually pays on a debt. It is calculated as the positive value of Interest Expense divided by its average total debt. Total debt equals to Long-Term Debt & Capital Lease Obligation plus Short-Term Debt & Capital Lease Obligation. Formosa Petrochemical's annualized positive value of Interest Expense for the quarter that ended in Mar. 2026 was NT$324 Mil. Formosa Petrochemical's average total debt for the quarter that ended in Mar. 2026 was NT$21,935 Mil. Therefore, Formosa Petrochemical's annualized Effective Interest Rate on Debt % for the quarter that ended in Mar. 2026 was 1.48%.


Formosa Petrochemical  (TPE:6505) Effective Interest Rate on Debt % Explanation

Effective Interest Rate on Debt % measures the usage rate that a borrower actually pays on a debt.


Formosa Petrochemical Effective Interest Rate on Debt % Related Terms


Formosa Petrochemical Effective Interest Rate on Debt % Historical Data

* Premium members only.

The historical data trend for Formosa Petrochemical's Effective Interest Rate on Debt % 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 Effective Interest Rate on Debt % Chart

Formosa Petrochemical Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Effective Interest Rate on Debt %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.06 1.21 1.21 1.52 1.63

Formosa Petrochemical Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Effective Interest Rate on Debt % 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 1.73 1.45 1.76 1.54 1.48

TPE:6505 vs MPC, VLO, PSX: Effective Interest Rate on Debt % Comparison

For the Oil & Gas Refining & Marketing subindustry, Formosa Petrochemical's Effective Interest Rate on Debt %, along with its competitors' market caps and Effective Interest Rate on Debt % 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 Effective Interest Rate on Debt % vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, Formosa Petrochemical's Effective Interest Rate on Debt % distribution charts can be found below:

* The bar in red indicates where Formosa Petrochemical's Effective Interest Rate on Debt % falls into.


TPE:6505
83GF Score
Formosa Petrochemical Corp TPE:6505
Effective Interest Rate on Debt % is just one metric. See GF Score™, valuation, warning signs, and more.
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Formosa Petrochemical Effective Interest Rate on Debt % Calculation

Formosa Petrochemical's annualized Effective Interest Rate on Debt % for the fiscal year that ended in Dec. 2025 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (A: Dec. 2024 )+Total Debt  (A: Dec. 2025 ))/ count )
=-1  *  -468.191/( (36343.946+21130.412)/ 2 )
=-1  *  -468.191/28737.179
=1.63 %

where

Total Debt  (A: Dec. 2024 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=18193.777 + 18150.169
=36343.946

Total Debt  (A: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=11236.495 + 9893.917
=21130.412

Formosa Petrochemical's annualized Effective Interest Rate on Debt % for the quarter that ended in Mar. 2026 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (Q: Dec. 2025 )+Total Debt  (Q: Mar. 2026 ))/ count )
=-1  *  -324.1/( (21130.412+22739.799)/ 2 )
=-1  *  -324.1/21935.1055
=1.48 %

where

Total Debt  (Q: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=11236.495 + 9893.917
=21130.412

Total Debt  (Q: Mar. 2026 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=12760.478 + 9979.321
=22739.799

* 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.

In the calculation of annual Effective Interest Rate on Debt %, the Interest Expense of the last fiscal year and the average total debt over the fiscal year are used. In calculating the quarterly data, the Interest Expense data used here is four times the quarterly (Mar. 2026) interest expense data. Effective Interest Rate on Debt % is displayed in the 30-year financial page.

What does a Effective Interest Rate on Debt % of 1.48% mean?
Formosa Petrochemical (TPE:6505) has a Effective Interest Rate on Debt % of 1.48% as of Mar. 2026. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Formosa Petrochemical and its competitors.
Is Formosa Petrochemical's Effective Interest Rate on Debt % too high?
Formosa Petrochemical's current Effective Interest Rate on Debt % is 1.48%. Overall, Formosa Petrochemical has a GF Score™ of 83/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Formosa Petrochemical's Effective Interest Rate on Debt % compare to MPC and VLO?
Formosa Petrochemical's Effective Interest Rate on Debt % of 1.48% can be compared against companies in the Oil & Gas industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Effective Interest Rate on Debt % for an Oil & Gas company?
A good Effective Interest Rate on Debt % depends on the Oil & Gas industry context. However, Effective Interest Rate on Debt % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Effective Interest Rate on Debt % mean?
A high Effective Interest Rate on Debt % can signal that a stock is expensive relative to its fundamentals. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Formosa Petrochemical and its competitors. Formosa Petrochemical's current Effective Interest Rate on Debt % is 1.48%. 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 Significantly Overvalued. The stock's GF Value™ is NT$54.58, compared to a current price of NT$77.90 — trading 42.7% above its estimated fair value. The current Effective Interest Rate on Debt % is 1.48%. Formosa Petrochemical's overall GF Score™ is 83/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Effective Interest Rate on Debt % calculated?
Effective Interest Rate on Debt % is calculated from a company's financial statements. For Formosa Petrochemical (TPE:6505), the current Effective Interest Rate on Debt % is 1.48% as of Mar. 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$77.90 is trading 42.7% above its estimated GF Value™ of NT$54.58. GuruFocus considers Formosa Petrochemical to be Significantly Overvalued.

Key valuation signals for TPE:6505:

  • Effective Interest Rate on Debt %: 1.48%
  • GF Value™: NT$54.58 vs. price of NT$77.90 (42.7% above fair value)
  • GF Score™: 83/100 with 5 warning signs

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.
83GF Score

Get the complete analysis for TPE:6505

Effective Interest Rate on Debt % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$77.90
Price
NT$54.58
GF Value