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Thai Optical Group PCLBKK:TOG 89 Debt-to-EBITDA is 18.30 as of Jun. 2026, which is 1207% above its 10-year median of 1.40. GuruFocus rates BKK:TOG with a GF Score™ of 89/100 and a GF Value™ of ฿9.76 (Modestly Undervalued). The stock has 5 warning signs investors should review. Among 473 Medical Devices & Instruments companies, Thai Optical Group PCL ranks worse than 67.02% on this metric.
Debt-to-EBITDA measures a company's ability to pay off its debt.
A high Debt-to-EBITDA ratio generally means that a company may spend more time to paying off its debt. According to Joel Tillinghast's BIG MONEY THINKS SMALL: Biases, Blind Spots, and Smarter Investing, a ratio of Debt-to-EBITDA exceeding four is usually considered scary unless tangible assets cover the debt.
The historical rank and industry rank for Thai Optical Group PCL's Debt-to-EBITDA or its related term are showing as below:
BKK:TOG'
s Debt-to-EBITDA Range Over the Past 10 Years
Min: 0.59 Med: 1.4 Max: 2.74
Current: 2.74
During the past 13 years, the highest Debt-to-EBITDA Ratio of Thai Optical Group PCL was 2.74. The lowest was 0.59. And the median was 1.40.
BKK:TOG's Debt-to-EBITDA is ranked worse than 67.02% of 473
companies
in the Medical Devices & Instruments industry
Industry Median: 1.64
vs BKK:TOG: 2.74
A high Debt-to-EBITDA ratio generally means that a company may spend more time to paying off its debt.
According to Joel Tillinghast's BIG MONEY THINKS SMALL: Biases, Blind Spots, and Smarter Investing, a ratio of Debt-to-EBITDA exceeding four is usually considered scary unless tangible assets cover the debt.
Thai Optical Group PCL Debt-to-EBITDA Related Terms
Thai Optical Group PCL Debt-to-EBITDA Historical Data
* Premium members only.
The historical data trend for Thai Optical Group PCL's Debt-to-EBITDA 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.
BKK:TOG vs ISRG, BDX, MDLN: Debt-to-EBITDA Comparison
For the Medical Instruments & Supplies subindustry, Thai Optical Group PCL's Debt-to-EBITDA, along with its competitors' market caps and Debt-to-EBITDA 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.
Thai Optical Group PCL Debt-to-EBITDA vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, Thai Optical Group PCL's Debt-to-EBITDA distribution charts can be found below:
* The bar in red indicates where Thai Optical Group PCL's Debt-to-EBITDA falls into.
* 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 Debt-to-EBITDA, the EBITDA of the last fiscal year is used. In calculating the annualized quarterly data,
the EBITDA data used here is four times the quarterly (Jun. 2026) EBITDA data.
Thai Optical Group PCL (BKK:TOG) has a Debt-to-EBITDA of 18.30 as of Jun. 2026. Debt-to-EBITDA ratio represents the ratio of total debt to total earnings before interest, taxes, depreciation and amortization. View historical data on Thai Optical Group PCL. This is 1207% above median its historical median of 1.40. Over the past decade, Thai Optical Group PCL's Debt-to-EBITDA has ranged from 0.59 to 2.74. According to the industry distribution chart, Thai Optical Group PCL ranks #317 out of 473 companies in the Medical Devices & Instruments industry, placing it in the top 67%.
Is Thai Optical Group PCL's Debt-to-EBITDA too high?
Thai Optical Group PCL's current Debt-to-EBITDA of 18.30 is 1207% above median its 10-year median of 1.40. Over the past 10 years, this metric has ranged from a low of 0.59 to a high of 2.74. The Medical Devices & Instruments industry median Debt-to-EBITDA is 1.64. Thai Optical Group PCL's value of 18.30 is 1015.9% above this industry median. Based on the distribution chart, Thai Optical Group PCL ranks #317 out of 473 companies in the Medical Devices & Instruments industry, which is below the industry midpoint. Overall, Thai Optical Group PCL has a GF Score™ of 89/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Thai Optical Group PCL's Debt-to-EBITDA compare to ISRG and BDX?
According to the Medical Devices & Instruments industry distribution chart, Thai Optical Group PCL ranks #317 out of 473 companies for Debt-to-EBITDA. This places Thai Optical Group PCL in the lower half of its industry. The industry median Debt-to-EBITDA is 1.64. Thai Optical Group PCL's value of 18.30 is 1015.9% above this benchmark. Historically, Thai Optical Group PCL's own Debt-to-EBITDA has ranged from 0.59 to 2.74 over the past decade. While the company's 10-year median is 1.40 vs. the industry median of 1.64, Thai Optical Group PCL 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 Debt-to-EBITDA for a Medical Devices & Instruments company?
The median Debt-to-EBITDA among Medical Devices & Instruments companies is 1.64, based on 473 companies in the industry. Companies in the top quartile (top 25%) have a Debt-to-EBITDA significantly above this median, while those in the bottom quartile fall well below. However, Debt-to-EBITDA should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Thai Optical Group PCL's current Debt-to-EBITDA of 18.30 is 1015.9% 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 Debt-to-EBITDA mean?
A high Debt-to-EBITDA can signal that a stock is expensive relative to its fundamentals. Debt-to-EBITDA ratio represents the ratio of total debt to total earnings before interest, taxes, depreciation and amortization. View historical data on Thai Optical Group PCL. For the Medical Devices & Instruments industry, the median Debt-to-EBITDA is 1.64 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Thai Optical Group PCL's current Debt-to-EBITDA is 18.30, which is 1207% above median its own 10-year median of 1.40. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Thai Optical Group PCL stock overvalued right now?
Based on GuruFocus' analysis, Thai Optical Group PCL (BKK:TOG) is currently considered Modestly Undervalued. The stock's GF Value™ is ฿9.76, compared to a current price of ฿7.30 — trading 25.2% below its estimated fair value. The current Debt-to-EBITDA is 18.30, which is 1207% above median its 10-year median of 1.40 and 1015.9% above the Medical Devices & Instruments industry median of 1.64. Thai Optical Group PCL's overall GF Score™ is 89/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Debt-to-EBITDA calculated?
Debt-to-EBITDA is calculated from a company's financial statements. For Thai Optical Group PCL (BKK:TOG), the current Debt-to-EBITDA is 18.30 as of Jun. 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 Thai Optical Group PCL (BKK:TOG) Overvalued in 2026?
Based on GuruFocus' analysis, Thai Optical Group PCL stock appears to be undervalued.
The current stock price of ฿7.30 is trading 25.2% below its estimated GF Value™ of ฿9.76.
GuruFocus considers Thai Optical Group PCL to be Modestly Undervalued.
Key valuation signals for BKK:TOG:
Debt-to-EBITDA: 18.30 (1207% above median its 10-year median of 1.40)
GF Value™: ฿9.76 vs. price of ฿7.30 (25.2% below fair value)
Industry Position: 1015.9% above the Medical Devices & Instruments median (#317 of 473)
No single metric tells the full story. See the BKK:TOG stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Thai Optical Group PCL is engaged in the manufacturing and distribution of plastic lenses and related products. The company's products include Organic lenses, Mineral lenses, and Prescription Lenses. It has two reporting segments: Plastic and glass lens, which produce and sell optical lenses; Other products and services which are the sale of the glass mold, trading goods purchased for resale, glasses assembly services, and surface treatments. The majority of the revenue is generated from the plastic and glass lens segment. The company also operates in Europe, Australia, Asia and Pacific, America, Africa, and the Middle East. The majority of revenue is from America.
89GF Score
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