Win SemiconductorsROCO:3105 +2.43%65 Pretax Margin % is 11.59% as of Mar. 2026, which is 50% below its 10-year median of 23.01. GuruFocus rates ROCO:3105 with a GF Score™ of 65/100 and a GF Value™ of NT$170.67 (Significantly Overvalued). The stock has 2 warning signs investors should review. Among 1,020 Semiconductors companies, Win Semiconductors ranks better than 64.61% on this metric.
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.
Win Semiconductors Pretax Margin % Related Terms
Win Semiconductors Pretax Margin % Historical Data
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The historical data trend for Win Semiconductors'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.
ROCO:3105 vs NVDA, AVGO, MU: Pretax Margin % Comparison
For the Semiconductors subindustry, Win Semiconductors'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.
Win Semiconductors Pretax Margin % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Win Semiconductors's Pretax Margin % distribution charts can be found below:
* The bar in red indicates where Win Semiconductors's Pretax Margin % 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.
Win Semiconductors (ROCO:3105) has a Pretax Margin % of 11.59% as of Mar. 2026. Pre-Tax margin is the ratio of total pre-tax income to net sales. View historical data on Win Semiconductors and its competitors. This is 50% below median its historical median of 23.01. According to the industry distribution chart, Win Semiconductors ranks #361 out of 1020 companies in the Semiconductors industry, placing it in the top 35.4%.
Is Win Semiconductors' Pretax Margin % too high?
Win Semiconductors' current Pretax Margin % of 11.59% is 50% below median its 10-year median of 23.01. The Semiconductors industry median Pretax Margin % is 5.11. Win Semiconductors' value of 11.59% is 126.8% above this industry median. Based on the distribution chart, Win Semiconductors ranks #361 out of 1020 companies in the Semiconductors industry, which is above the industry midpoint. Overall, Win Semiconductors has a GF Score™ of 65/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Win Semiconductors' Pretax Margin % compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Win Semiconductors ranks #361 out of 1020 companies for Pretax Margin %. This puts Win Semiconductors in the upper half of its industry. The industry median Pretax Margin % is 5.11. Win Semiconductors' value of 11.59% is 126.8% above this benchmark. While the company's 10-year median is 23.01 vs. the industry median of 5.11, Win Semiconductors 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 Pretax Margin % for a Semiconductors company?
The median Pretax Margin % among Semiconductors companies is 5.11, based on 1,020 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. Win Semiconductors's current Pretax Margin % of 11.59% is 126.8% 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 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 Win Semiconductors and its competitors. For the Semiconductors industry, the median Pretax Margin % is 5.11 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Win Semiconductors's current Pretax Margin % is 11.59%, which is 50% below median its own 10-year median of 23.01. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Win Semiconductors stock overvalued right now?
Based on GuruFocus' analysis, Win Semiconductors (ROCO:3105) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$170.67, compared to a current price of NT$421.00 — trading 146.7% above its estimated fair value. The current Pretax Margin % is 11.59%, which is 50% below median its 10-year median of 23.01 and 126.8% above the Semiconductors industry median of 5.11. Win Semiconductors' overall GF Score™ is 65/100 with 2 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 Win Semiconductors (ROCO:3105), the current Pretax Margin % is 11.59% 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 Win Semiconductors (ROCO:3105) Overvalued in 2026?
Based on GuruFocus' analysis, Win Semiconductors stock appears to be overvalued.
The current stock price of NT$421.00 is trading 146.7% above its estimated GF Value™ of NT$170.67.
GuruFocus considers Win Semiconductors to be Significantly Overvalued.
Key valuation signals for ROCO:3105:
Pretax Margin %: 11.59% (50% below median its 10-year median of 23.01)
GF Value™: NT$170.67 vs. price of NT$421.00 (146.7% above fair value)
Industry Position: 126.8% above the Semiconductors median (#361 of 1020)
No single metric tells the full story. See the ROCO:3105 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Founded in 1999, Win Semiconductors is the largest foundry for nonsilicon-based semiconductor components, most notably gallium arsenide, or GaAs; gallium nitride, or GaN; and silicon carbide, or SiC. Win Semi wielded over 50% share in the GaAs foundry market in 2025, followed by Advanced Wireless Semiconductor and GCS Holdings. The company's headquarters, four factories, and most of its 3,500 employees are based in Taoyuan City, Taiwan. Its products are applied in mobile, Wi-Fi networks, cellular infrastructure (such as base stations), satellite communication, optical communication, and 3D sensing. The company also provides automated testing and inspection services.
65GF Score
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