Sunmax Biotechnology Co (ROCO:4728) Gross Margin %: 77.03% (As of Dec. 2025) — Near Median

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ROCO:4728 Sunmax Biotechnology Co Ltd ROCO:4728
91 GF Score
Price NT$381.00
GF Value NT$441.22
Valuation Modestly Undervalued
! 3 Warning Signs
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What is Sunmax Biotechnology Co Gross Margin %?

Sunmax Biotechnology Co ROCO:4728 +1.06% 91 Gross Margin % is 77.03% as of Dec. 2025, which is 4% below its 10-year median of 80.18. GuruFocus rates ROCO:4728 with a GF Score™ of 91/100 and a GF Value™ of NT$441.22 (Modestly Undervalued). The stock has 3 warning signs investors should review. Among 732 Biotechnology companies, Sunmax Biotechnology Co ranks better than 70.63% on this metric.

Gross Margin % is calculated as gross profit divided by its revenue. Sunmax Biotechnology Co's Gross Profit for the three months ended in Dec. 2025 was NT$392 Mil. Sunmax Biotechnology Co's Revenue for the three months ended in Dec. 2025 was NT$508 Mil. Therefore, Sunmax Biotechnology Co's Gross Margin % for the quarter that ended in Dec. 2025 was 77.03%.

Warning Sign:

Sunmax Biotechnology Co Ltd gross margin has been in long-term decline. The average rate of decline per year is -1.4%.


The historical rank and industry rank for Sunmax Biotechnology Co's Gross Margin % or its related term are showing as below:

ROCO:4728' s Gross Margin % Range Over the Past 10 Years
Min: 63.74   Med: 80.18   Max: 86.54
Current: 78.41


During the past 13 years, the highest Gross Margin % of Sunmax Biotechnology Co was 86.54%. The lowest was 63.74%. And the median was 80.18%.

ROCO:4728's Gross Margin % is ranked better than
70.63% of 732 companies
in the Biotechnology industry
Industry Median: 60.905 vs ROCO:4728: 78.41

Sunmax Biotechnology Co had a gross margin of 77.03% for the quarter that ended in Dec. 2025 => Durable competitive advantage

The 5-Year average Growth Rate of Gross Margin for Sunmax Biotechnology Co was -1.40% per year.


Sunmax Biotechnology Co  (ROCO:4728) Gross Margin % Explanation

Warren Buffett believes that firms with excellent long term economics tend to have consistently higher margins.

Durable competitive advantage creates a high Gross Margin % because of the freedom to price in excess of cost. Companies can be categorized by their Gross Margin %

1. Greater than 40% = Durable competitive advantage
2. Less than 40% = Competition eroding margins
3. Less than 20% = no sustainable competitive advantage
Consistency of Gross Margin is key

Sunmax Biotechnology Co had a gross margin of 77.03% for the quarter that ended in Dec. 2025 => Durable competitive advantage


Be Aware

If a company loses its competitive advantages, usually its gross margin declines well before its sales declines. Watching Gross Margin % and Operating Margin % closely helps avoid value trap situations.


Sunmax Biotechnology Co Gross Margin % Related Terms


Sunmax Biotechnology Co Gross Margin % Historical Data

* Premium members only.

The historical data trend for Sunmax Biotechnology Co's Gross Margin % 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.

Sunmax Biotechnology Co Gross Margin % Chart

Sunmax Biotechnology Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Gross Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 86.37 85.20 78.51 81.33 78.41

Sunmax Biotechnology Co Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
Gross Margin % 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 79.76 79.55 79.11 77.89 77.03

ROCO:4728 vs VRTX, REGN, ALNY: Gross Margin % Comparison

For the Biotechnology subindustry, Sunmax Biotechnology Co's Gross Margin %, along with its competitors' market caps and Gross Margin % 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.


Sunmax Biotechnology Co Gross Margin % vs Biotechnology Industry

For the Biotechnology industry and Healthcare sector, Sunmax Biotechnology Co's Gross Margin % distribution charts can be found below:

* The bar in red indicates where Sunmax Biotechnology Co's Gross Margin % falls into.


ROCO:4728
91GF Score
Sunmax Biotechnology Co Ltd ROCO:4728
Gross Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Sunmax Biotechnology Co Gross Margin % Calculation

Gross Margin is the percentage of Gross Profit out of sales or Revenue.

Sunmax Biotechnology Co's Gross Margin for the fiscal year that ended in Dec. 2025 is calculated as

Gross Margin % (A: Dec. 2025 )=Gross Profit (A: Dec. 2025 ) / Revenue (A: Dec. 2025 )
=1588.6 / 2026.164
=(Revenue - Cost of Goods Sold) / Revenue
=(2026.164 - 437.537) / 2026.164
=78.41 %

Sunmax Biotechnology Co's Gross Margin for the quarter that ended in Dec. 2025 is calculated as


Gross Margin % (Q: Dec. 2025 )=Gross Profit (Q: Dec. 2025 ) / Revenue (Q: Dec. 2025 )
=391.5 / 508.268
=(Revenue - Cost of Goods Sold) / Revenue
=(508.268 - 116.743) / 508.268
=77.03 %

* 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.

A positive Gross Profit is only the first step for a company to make a net profit. The gross profit needs to be big enough to also cover related labor, equipment, rental, marketing/advertising, research and development and a lot of other costs in selling the products.

Frequently Asked Questions Learn more about Gross Margin % →
What does a Gross Margin % of 77.03% mean?
Sunmax Biotechnology Co (ROCO:4728) has a Gross Margin % of 77.03% as of Dec. 2025. Gross margin is the ratio of total gross profit to net sales. View historical data on Sunmax Biotechnology Co and its competitors. This is near median its historical median of 80.18. Over the past decade, Sunmax Biotechnology Co's Gross Margin % has ranged from 63.74 to 86.54. According to the industry distribution chart, Sunmax Biotechnology Co ranks #215 out of 732 companies in the Biotechnology industry, placing it in the top 29.4%.
Is Sunmax Biotechnology Co's Gross Margin % too high?
Sunmax Biotechnology Co's current Gross Margin % of 77.03% is near median its 10-year median of 80.18. Over the past 10 years, this metric has ranged from a low of 63.74 to a high of 86.54. The Biotechnology industry median Gross Margin % is 60.91. Sunmax Biotechnology Co's value of 77.03% is 26.5% above this industry median. Based on the distribution chart, Sunmax Biotechnology Co ranks #215 out of 732 companies in the Biotechnology industry, which is above the industry midpoint. Overall, Sunmax Biotechnology Co has a GF Score™ of 91/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Sunmax Biotechnology Co's Gross Margin % compare to VRTX and REGN?
According to the Biotechnology industry distribution chart, Sunmax Biotechnology Co ranks #215 out of 732 companies for Gross Margin %. This puts Sunmax Biotechnology Co in the upper half of its industry. The industry median Gross Margin % is 60.91. Sunmax Biotechnology Co's value of 77.03% is 26.5% above this benchmark. Historically, Sunmax Biotechnology Co's own Gross Margin % has ranged from 63.74 to 86.54 over the past decade. While the company's 10-year median is 80.18 vs. the industry median of 60.91, Sunmax Biotechnology Co 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 Gross Margin % for a Biotechnology company?
The median Gross Margin % among Biotechnology companies is 60.91, based on 732 companies in the industry. Companies in the top quartile (top 25%) have a Gross Margin % significantly above this median, while those in the bottom quartile fall well below. However, Gross Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Sunmax Biotechnology Co's current Gross Margin % of 77.03% is 26.5% 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 Gross Margin % mean?
A high Gross Margin % can signal that a stock is expensive relative to its fundamentals. Gross margin is the ratio of total gross profit to net sales. View historical data on Sunmax Biotechnology Co and its competitors. For the Biotechnology industry, the median Gross Margin % is 60.91 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sunmax Biotechnology Co's current Gross Margin % is 77.03%, which is near median its own 10-year median of 80.18. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sunmax Biotechnology Co stock overvalued right now?
Based on GuruFocus' analysis, Sunmax Biotechnology Co (ROCO:4728) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$441.22, compared to a current price of NT$381.00 — trading 13.6% below its estimated fair value. The current Gross Margin % is 77.03%, which is near median its 10-year median of 80.18 and 26.5% above the Biotechnology industry median of 60.91. Sunmax Biotechnology Co's overall GF Score™ is 91/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Gross Margin % calculated?
Gross Margin % is calculated from a company's financial statements. For Sunmax Biotechnology Co (ROCO:4728), the current Gross Margin % is 77.03% as of Dec. 2025. 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 Sunmax Biotechnology Co (ROCO:4728) Overvalued in 2026?

Based on GuruFocus' analysis, Sunmax Biotechnology Co stock appears to be undervalued. The current stock price of NT$381.00 is trading 13.6% below its estimated GF Value™ of NT$441.22. GuruFocus considers Sunmax Biotechnology Co to be Modestly Undervalued.

Key valuation signals for ROCO:4728:

  • Gross Margin %: 77.03% (near median its 10-year median of 80.18)
  • GF Value™: NT$441.22 vs. price of NT$381.00 (13.6% below fair value)
  • GF Score™: 91/100 with 3 warning signs
  • Industry Position: 26.5% above the Biotechnology median (#215 of 732)

No single metric tells the full story. See the ROCO:4728 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Sunmax Biotechnology Co Business Description

Address Huandong Road, New Urban District, 1st Floor, No. 10, Lane 31, Section 1, Tainan Science Industrial Park, Tainan, TWN
Sunmax Biotechnology Co Ltd is a biomedical company in Taiwan. It is engaged in the development, manufacturing, and commercialization of Sunmax medical devices and bio-surgical products. Additionally, it also researches, develops, manufactures and sales biomedical material grade collagen and related products. The company's products include medical products, biomedical materials, and porcine collagen skin care products.
91GF Score

Get the complete analysis for ROCO:4728

Gross Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$381.00
Price
NT$441.22
GF Value