Igiant Optics Co (ROCO:6915) Pretax Margin %: -5.38% (As of Dec. 2025)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

ROCO:6915 Igiant Optics Co Ltd ROCO:6915
44 GF Score
Price NT$44.00
GF Value NT$15.56
Valuation Significantly Overvalued
! 3 Warning Signs
View Full Analysis

What is Igiant Optics Co Pretax Margin %?

Igiant Optics Co ROCO:6915 -12.00% 44 Pretax Margin % is -5.38% as of Dec. 2025. GuruFocus rates ROCO:6915 with a GF Score™ of 44/100 and a GF Value™ of NT$15.56 (Significantly Overvalued). The stock has 3 warning signs investors should review. Among 1,023 Semiconductors companies, Igiant Optics Co ranks worse than 72.92% on this metric.

Pre-Tax margin is calculated as Pre-Tax Income divided by its Revenue. Igiant Optics Co's Pre-Tax Income for the six months ended in Dec. 2025 was NT$-6.0 Mil. Igiant Optics Co's Revenue for the six months ended in Dec. 2025 was NT$111.2 Mil. Therefore, Igiant Optics Co's pretax margin for the quarter that ended in Dec. 2025 was -5.38%.

The historical rank and industry rank for Igiant Optics Co's Pretax Margin % or its related term are showing as below:

ROCO:6915' s Pretax Margin % Range Over the Past 10 Years
Min: -29.88   Med: 10.72   Max: 50.07
Current: -7.37


ROCO:6915's Pretax Margin % is ranked worse than
72.92% of 1023 companies
in the Semiconductors industry
Industry Median: 5.07 vs ROCO:6915: -7.37

Igiant Optics Co  (ROCO:6915) Pretax Margin % Explanation

The pretax margin, as know as pretax profit margin, is widely used to measure the operating efficiency of a company before deducting taxes.

The pretax margin is sometimes preferred over the net margin as tax expenditures can make profitability comparisons between companies misleading.

It is a useful tool to compare companies operating in the same sector and less effective when comparing companies from other sectors as each industry generally has different operating expenses and sales patterns.

The long term trend of the pretax margin is a good indicator of the competitiveness and health of the business.


Igiant Optics Co Pretax Margin % Related Terms


Igiant Optics Co Pretax Margin % Historical Data

* Premium members only.

The historical data trend for Igiant Optics Co's Pretax 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.

Igiant Optics Co Pretax Margin % Chart

Igiant Optics Co Annual Data
Trend Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Pretax Margin %
Get a 7-Day Free Trial 32.02 10.72 -29.88 9.29 -7.37

Igiant Optics Co Semi-Annual Data
Dec18 Dec19 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Pretax Margin % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only -24.87 13.75 3.72 -8.89 -5.38

ROCO:6915 vs NVDA, AVGO, MU: Pretax Margin % Comparison

For the Semiconductors subindustry, Igiant Optics Co's Pretax Margin %, along with its competitors' market caps and Pretax 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.


Igiant Optics Co Pretax Margin % vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Igiant Optics Co's Pretax Margin % distribution charts can be found below:

* The bar in red indicates where Igiant Optics Co's Pretax Margin % falls into.


ROCO:6915
44GF Score
Igiant Optics Co Ltd ROCO:6915
Pretax Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Igiant Optics Co Pretax Margin % Calculation

Pretax margin - also known as pretax profit margin is the ratio of Pretax Income divided by net sales or Revenue, usually presented in percent.

Igiant Optics Co's Pretax Margin for the fiscal year that ended in Dec. 2025 is calculated as

Pretax Margin=Pre-Tax Income (A: Dec. 2025 )/Revenue (A: Dec. 2025 )
=-18.985/257.496
=-7.37 %

Igiant Optics Co's Pretax Margin for the quarter that ended in Dec. 2025 is calculated as

Pretax Margin=Pre-Tax Income (Q: Dec. 2025 )/Revenue (Q: Dec. 2025 )
=-5.983/111.173
=-5.38 %

* 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.

Frequently Asked Questions Learn more about Pretax Margin % →
What does a Pretax Margin % of -5.38% mean?
Igiant Optics Co (ROCO:6915) has a Pretax Margin % of -5.38% as of Dec. 2025. Pre-Tax margin is the ratio of total pre-tax income to net sales. View historical data on Igiant Optics Co and its competitors. According to the industry distribution chart, Igiant Optics Co ranks #746 out of 1023 companies in the Semiconductors industry, placing it in the top 72.9%.
Is Igiant Optics Co's Pretax Margin % too high?
Igiant Optics Co's current Pretax Margin % is -5.38%. Based on the distribution chart, Igiant Optics Co ranks #746 out of 1023 companies in the Semiconductors industry, which is below the industry midpoint. Overall, Igiant Optics Co has a GF Score™ of 44/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Igiant Optics Co's Pretax Margin % compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Igiant Optics Co ranks #746 out of 1023 companies for Pretax Margin %. This places Igiant Optics Co in the lower half of its industry. The industry median Pretax Margin % is 5.07. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Pretax Margin % for a Semiconductors company?
The median Pretax Margin % among Semiconductors companies is 5.07, based on 1,023 companies in the industry. Companies in the top quartile (top 25%) have a Pretax Margin % significantly above this median, while those in the bottom quartile fall well below. However, Pretax Margin % 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 Pretax Margin % mean?
A high Pretax Margin % can signal that a stock is expensive relative to its fundamentals. Pre-Tax margin is the ratio of total pre-tax income to net sales. View historical data on Igiant Optics Co and its competitors. For the Semiconductors industry, the median Pretax Margin % is 5.07 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Igiant Optics Co's current Pretax Margin % is -5.38%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Igiant Optics Co stock overvalued right now?
Based on GuruFocus' analysis, Igiant Optics Co (ROCO:6915) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$15.56, compared to a current price of NT$44.00 — trading 182.8% above its estimated fair value. The current Pretax Margin % is -5.38%. Igiant Optics Co's overall GF Score™ is 44/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Pretax Margin % calculated?
Pretax Margin % is calculated from a company's financial statements. For Igiant Optics Co (ROCO:6915), the current Pretax Margin % is -5.38% 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 Igiant Optics Co (ROCO:6915) Overvalued in 2026?

Based on GuruFocus' analysis, Igiant Optics Co stock appears to be overvalued. The current stock price of NT$44.00 is trading 182.8% above its estimated GF Value™ of NT$15.56. GuruFocus considers Igiant Optics Co to be Significantly Overvalued.

Key valuation signals for ROCO:6915:

  • Pretax Margin %: -5.38%
  • GF Value™: NT$15.56 vs. price of NT$44.00 (182.8% above fair value)
  • GF Score™: 44/100 with 3 warning signs

No single metric tells the full story. See the ROCO:6915 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Igiant Optics Co Business Description

Address No. 13-1, Zhonghua Road, Hukou Township, Hsinchu, TWN, 303
Igiant Optics Co Ltd is an optical design and manufacturing company. It offers precision micro molding on parts, Dual shot molding & insert molding, Micro molding on composites, LDS (Laser Direct Structuring), LF, LSR (Liquid Silicone Rubber), and Optical solution. Its service offerings comprise optical design, tool fabrication, precision injection, automation to full-scale inspection.
44GF Score

Get the complete analysis for ROCO:6915

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

NT$44.00
Price
NT$15.56
GF Value