Mospec Semiconductor (TPE:2434) Operating Margin %: -176.51% (As of Dec. 2025)


TPE:2434 Mospec Semiconductor Corp TPE:2434
52 GF Score
Price NT$40.95
GF Value NT$22.42
Valuation Significantly Overvalued
! 9 Warning Signs
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What is Mospec Semiconductor Operating Margin %?

Mospec Semiconductor TPE:2434 -8.08% 52 Operating Margin % is -176.51% as of Dec. 2025. GuruFocus rates TPE:2434 with a GF Score™ of 52/100 and a GF Value™ of NT$22.42 (Significantly Overvalued). The stock has 9 warning signs investors should review. Among 1,023 Semiconductors companies, Mospec Semiconductor ranks worse than 96.58% on this metric.

Operating Margin % is calculated as Operating Income divided by its Revenue. Mospec Semiconductor's Operating Income for the three months ended in Dec. 2025 was NT$-19.46 Mil. Mospec Semiconductor's Revenue for the three months ended in Dec. 2025 was NT$11.02 Mil. Therefore, Mospec Semiconductor's Operating Margin % for the quarter that ended in Dec. 2025 was -176.51%.

Warning Sign:

Mospec Semiconductor Corp operating margin has been in a 5-year decline. The average rate of decline per year is -29.8%.

The historical rank and industry rank for Mospec Semiconductor's Operating Margin % or its related term are showing as below:

TPE:2434' s Operating Margin % Range Over the Past 10 Years
Min: -137.47   Med: -69.17   Max: -21.47
Current: -136.3


TPE:2434's Operating Margin % is ranked worse than
96.58% of 1023 companies
in the Semiconductors industry
Industry Median: 5.24 vs TPE:2434: -136.30

Mospec Semiconductor's 5-Year Average Operating Margin % Growth Rate was -29.80% per year.

Mospec Semiconductor's Operating Income for the three months ended in Dec. 2025 was NT$-19.46 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Dec. 2025 was NT$-62.09 Mil.

Warning Sign:

Mospec Semiconductor Corp has never been profitable in the past 3 years. It lost money every year.


Mospec Semiconductor  (TPE:2434) Operating Margin % Explanation

Just like Gross Margin %, it is important to see a company maintains its operating margin over time. Among the same industry, a company with higher operating margin is more efficient in its operation. It is also more stable during industry slowdown or recessions. Peter Lynch prefers those with higher margins than those with lower margins.


Be Aware

Operating Margin % can be manipulated by adjusting the rate of depreciation, depletion and amortization (DDA).

If a company is facing competition, its Operating Margin % may decline. Often the Operating Margin % declines well before the company's Revenue or even profit decline. Therefore, Operating Margin % is a very important indicator of whether the company is facing problems.

For instance, by 2012, Nokia (NOK)'s problems were well known and its stock had lost more than 90% of its market value since 2007. But Nokia’s Operating Margin % had already been in decline since 2002, although its Earnings per Share (Diluted) were still rising. Investors who paid attention to Operating Margin % would have avoided this huge loss. The same can be said for Research-in-Motion (RIMM).

Therefore, Operating Margin % is a very important screening filter for GuruFocus. GuruFocus's Buffett-Munger screener requires that the profit margin is either consistent or expanding. The Model Portfolio of the Buffett-Munger screener has outperformed the market every year since inception in 2009.


Mospec Semiconductor Operating Margin % Related Terms


Mospec Semiconductor Operating Margin % Historical Data

* Premium members only.

The historical data trend for Mospec Semiconductor's Operating 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.

Mospec Semiconductor Operating Margin % Chart

Mospec Semiconductor Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Operating Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -21.47 -79.17 -78.83 -93.44 -136.30

Mospec Semiconductor Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
Operating 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 -87.17 -126.60 -116.59 -127.85 -176.51

TPE:2434 vs NVDA, AVGO, MU: Operating Margin % Comparison

For the Semiconductors subindustry, Mospec Semiconductor's Operating Margin %, along with its competitors' market caps and Operating 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.


Mospec Semiconductor Operating Margin % vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Mospec Semiconductor's Operating Margin % distribution charts can be found below:

* The bar in red indicates where Mospec Semiconductor's Operating Margin % falls into.


TPE:2434
52GF Score
Mospec Semiconductor Corp TPE:2434
Operating Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
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Mospec Semiconductor Operating Margin % Calculation

Operating Margin % - also known as operating income margin, operating profit margin and return on sales (ROS) - is the ratio of Operating Income divided by net sales or Revenue, usually presented in percent.

Mospec Semiconductor's Operating Margin % for the fiscal year that ended in Dec. 2025 is calculated as

Operating Margin %=Operating Income (A: Dec. 2025 ) / Revenue (A: Dec. 2025 )
=-62.086 / 45.551
=-136.30 %

Mospec Semiconductor's Operating Margin % for the quarter that ended in Dec. 2025 is calculated as

Operating Margin %=Operating Income (Q: Dec. 2025 ) / Revenue (Q: Dec. 2025 )
=-19.459 / 11.024
=-176.51 %

* 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 Operating Margin % →
What does a Operating Margin % of -176.51% mean?
Mospec Semiconductor (TPE:2434) has a Operating Margin % of -176.51% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on Mospec Semiconductor and its competitors. According to the industry distribution chart, Mospec Semiconductor ranks #988 out of 1023 companies in the Semiconductors industry, placing it in the top 96.6%.
Is Mospec Semiconductor's Operating Margin % too high?
Mospec Semiconductor's current Operating Margin % is -176.51%. Based on the distribution chart, Mospec Semiconductor ranks #988 out of 1023 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, Mospec Semiconductor has a GF Score™ of 52/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Mospec Semiconductor's Operating Margin % compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Mospec Semiconductor ranks #988 out of 1023 companies for Operating Margin %. This places Mospec Semiconductor in the lower half of its industry. The industry median Operating Margin % is 5.24. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Operating Margin % for a Semiconductors company?
The median Operating Margin % among Semiconductors companies is 5.24, based on 1,023 companies in the industry. Companies in the top quartile (top 25%) have a Operating Margin % significantly above this median, while those in the bottom quartile fall well below. However, Operating 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 Operating Margin % mean?
A high Operating Margin % can signal that a stock is expensive relative to its fundamentals. Operating margin is the ratio of total operating income to net sales. View historical data on Mospec Semiconductor and its competitors. For the Semiconductors industry, the median Operating Margin % is 5.24 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Mospec Semiconductor's current Operating Margin % is -176.51%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Mospec Semiconductor stock overvalued right now?
Based on GuruFocus' analysis, Mospec Semiconductor (TPE:2434) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$22.42, compared to a current price of NT$40.95 — trading 82.6% above its estimated fair value. The current Operating Margin % is -176.51%. Mospec Semiconductor's overall GF Score™ is 52/100 with 9 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Operating Margin % calculated?
Operating Margin % is calculated from a company's financial statements. For Mospec Semiconductor (TPE:2434), the current Operating Margin % is -176.51% 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 Mospec Semiconductor (TPE:2434) Overvalued in 2026?

Based on GuruFocus' analysis, Mospec Semiconductor stock appears to be overvalued. The current stock price of NT$40.95 is trading 82.6% above its estimated GF Value™ of NT$22.42. GuruFocus considers Mospec Semiconductor to be Significantly Overvalued.

Key valuation signals for TPE:2434:

  • Operating Margin %: -176.51%
  • GF Value™: NT$22.42 vs. price of NT$40.95 (82.6% above fair value)
  • GF Score™: 52/100 with 9 warning signs

No single metric tells the full story. See the TPE:2434 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Mospec Semiconductor Business Description

Address No. 76, Zhongshan Road, Xinshi District, Gangqian Village, Tainan, TWN, 74442
Mospec Semiconductor Corp engages in the manufacturing, processing, and sales of power transistors, diodes, and solar cell wafers. Its products include Rectifier, Bridge, Transistor, TVS, IGBT, SiC Schottky Diode, Power Transistor, Zener Diode, and LDO. It operates in single segment. Geographically its operations are spread across China, Korea, Hong Kong, India, Taiwan, and Others with majority of revenue deriving from China.
52GF Score

Get the complete analysis for TPE:2434

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

NT$40.95
Price
NT$22.42
GF Value