eMemory Technology (ROCO:3529) Pretax Margin %: 64.91% (As of Dec. 2025) — 24% Above Median


ROCO:3529 eMemory Technology Inc ROCO:3529
96 GF Score
Price NT$2,805.00
GF Value NT$3,048.11
Valuation Fairly Valued
! 2 Warning Signs
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What is eMemory Technology Pretax Margin %?

eMemory Technology ROCO:3529 +1.26% 96 Pretax Margin % is 64.91% as of Dec. 2025, which is 24% above its 10-year median of 52.16. GuruFocus rates ROCO:3529 with a GF Score™ of 96/100 and a GF Value™ of NT$3,048.11 (Fairly Valued). The stock has 2 warning signs investors should review. Among 1,020 Semiconductors companies, eMemory Technology ranks better than 98.43% on this metric.

Pre-Tax margin is calculated as Pre-Tax Income divided by its Revenue. eMemory Technology's Pre-Tax Income for the three months ended in Dec. 2025 was NT$680 Mil. eMemory Technology's Revenue for the three months ended in Dec. 2025 was NT$1,048 Mil. Therefore, eMemory Technology's pretax margin for the quarter that ended in Dec. 2025 was 64.91%.

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

ROCO:3529' s Pretax Margin % Range Over the Past 10 Years
Min: 44.9   Med: 52.16   Max: 59.75
Current: 59.35


ROCO:3529's Pretax Margin % is ranked better than
98.43% of 1020 companies
in the Semiconductors industry
Industry Median: 5.11 vs ROCO:3529: 59.35

eMemory Technology  (ROCO:3529) 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.


eMemory Technology Pretax Margin % Related Terms


eMemory Technology Pretax Margin % Historical Data

* Premium members only.

The historical data trend for eMemory Technology'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.

eMemory Technology Pretax Margin % Chart

eMemory Technology Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Pretax Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 54.28 59.34 57.40 59.75 59.35

eMemory Technology Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
Pretax 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 61.13 60.32 50.43 61.09 64.91

ROCO:3529 vs NVDA, AVGO, MU: Pretax Margin % Comparison

For the Semiconductors subindustry, eMemory Technology'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.


eMemory Technology Pretax Margin % vs Semiconductors Industry

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

* The bar in red indicates where eMemory Technology's Pretax Margin % falls into.


ROCO:3529
96GF Score
eMemory Technology Inc ROCO:3529
Pretax Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

eMemory Technology 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.

eMemory Technology'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 )
=2284.53/3849.053
=59.35 %

eMemory Technology'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 )
=680.495/1048.362
=64.91 %

* 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 64.91% mean?
eMemory Technology (ROCO:3529) has a Pretax Margin % of 64.91% as of Dec. 2025. Pre-Tax margin is the ratio of total pre-tax income to net sales. View historical data on eMemory Technology and its competitors. This is 24% above median its historical median of 52.16. Over the past decade, eMemory Technology's Pretax Margin % has ranged from 44.90 to 59.75. According to the industry distribution chart, eMemory Technology ranks #16 out of 1020 companies in the Semiconductors industry, placing it in the top 1.6%.
Is eMemory Technology's Pretax Margin % too high?
eMemory Technology's current Pretax Margin % of 64.91% is 24% above median its 10-year median of 52.16. Over the past 10 years, this metric has ranged from a low of 44.90 to a high of 59.75. The Semiconductors industry median Pretax Margin % is 5.11. eMemory Technology's value of 64.91% is 1170.3% above this industry median. Based on the distribution chart, eMemory Technology ranks #16 out of 1020 companies in the Semiconductors industry, which is in the top quartile — a strong position relative to peers. Overall, eMemory Technology has a GF Score™ of 96/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does eMemory Technology's Pretax Margin % compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, eMemory Technology ranks #16 out of 1020 companies for Pretax Margin %. This places eMemory Technology in the top 2% of its industry — outperforming the majority of peers. The industry median Pretax Margin % is 5.11. eMemory Technology's value of 64.91% is 1170.3% above this benchmark. Historically, eMemory Technology's own Pretax Margin % has ranged from 44.90 to 59.75 over the past decade. While the company's 10-year median is 52.16 vs. the industry median of 5.11, eMemory Technology 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. eMemory Technology's current Pretax Margin % of 64.91% is 1170.3% 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 eMemory Technology 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. eMemory Technology's current Pretax Margin % is 64.91%, which is 24% above median its own 10-year median of 52.16. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is eMemory Technology stock overvalued right now?
Based on GuruFocus' analysis, eMemory Technology (ROCO:3529) is currently considered Fairly Valued. The stock's GF Value™ is NT$3,048.11, compared to a current price of NT$2,805.00 — trading 8% below its estimated fair value. The current Pretax Margin % is 64.91%, which is 24% above median its 10-year median of 52.16 and 1170.3% above the Semiconductors industry median of 5.11. eMemory Technology's overall GF Score™ is 96/100 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 eMemory Technology (ROCO:3529), the current Pretax Margin % is 64.91% 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 eMemory Technology (ROCO:3529) Overvalued in 2026?

Based on GuruFocus' analysis, eMemory Technology stock appears to be undervalued. The current stock price of NT$2,805.00 is trading 8% below its estimated GF Value™ of NT$3,048.11. GuruFocus considers eMemory Technology to be Fairly Valued.

Key valuation signals for ROCO:3529:

  • Pretax Margin %: 64.91% (24% above median its 10-year median of 52.16)
  • GF Value™: NT$3,048.11 vs. price of NT$2,805.00 (8% below fair value)
  • GF Score™: 96/100 with 2 warning signs
  • Industry Position: 1170.3% above the Semiconductors median (#16 of 1020)

No single metric tells the full story. See the ROCO:3529 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


eMemory Technology Business Description

Address Tai-Yuan 1st Street, No. 5, 8th Floor, Hsinchu County, Jhubei, TWN, 302082
eMemory Technology Inc is engaged in researching, developing, manufacturing, and selling embedded flash memory products. It licenses its intellectual property (IP) to semiconductor foundries, integrated device manufacturers, and design houses. The company offers comprehensive platforms of Logic NVM silicon IP, including NeoBit, NeoFuse, NeoEE, NeoMTP, EcoBit, NeoFlash, RRAM, MRAM, and NeoPUF; as well as a range of cost-effective and customized logic NVM solutions. It earns revenue in the form of royalties and income generated from the provision of technical services, out of which the majority comes from royalties. Geographically, the company generates maximum revenue from its domestic market, followed by Asia and other regions.
96GF Score

Get the complete analysis for ROCO:3529

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

NT$2,805.00
Price
NT$3,048.11
GF Value