ProbeLeader Co (ROCO:5246) Operating Margin %: -7.59% (As of Dec. 2025)


ROCO:5246 ProbeLeader Co Ltd ROCO:5246
46 GF Score
Price NT$170.50
GF Value NT$17.94
Valuation Significantly Overvalued
! 5 Warning Signs
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What is ProbeLeader Co Operating Margin %?

ProbeLeader Co ROCO:5246 -6.32% 46 Operating Margin % is -7.59% as of Dec. 2025. GuruFocus rates ROCO:5246 with a GF Score™ of 46/100 and a GF Value™ of NT$17.94 (Significantly Overvalued). The stock has 5 warning signs investors should review. Among 1,023 Semiconductors companies, ProbeLeader Co ranks worse than 72.53% on this metric.

Operating Margin % is calculated as Operating Income divided by its Revenue. ProbeLeader Co's Operating Income for the six months ended in Dec. 2025 was NT$-36 Mil. ProbeLeader Co's Revenue for the six months ended in Dec. 2025 was NT$478 Mil. Therefore, ProbeLeader Co's Operating Margin % for the quarter that ended in Dec. 2025 was -7.59%.

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

ROCO:5246' s Operating Margin % Range Over the Past 10 Years
Min: -8.65   Med: 1.62   Max: 8.39
Current: -5.26


ROCO:5246's Operating Margin % is ranked worse than
72.53% of 1023 companies
in the Semiconductors industry
Industry Median: 5.24 vs ROCO:5246: -5.26

ProbeLeader Co's 5-Year Average Operating Margin % Growth Rate was 0.00% per year.

ProbeLeader Co's Operating Income for the six months ended in Dec. 2025 was NT$-36 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Dec. 2025 was NT$-54 Mil.

Warning Sign:

ProbeLeader Co Ltd had lost money in 67% of the time over the past 3quarters.


ProbeLeader Co  (ROCO:5246) 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.


ProbeLeader Co Operating Margin % Related Terms


ProbeLeader Co Operating Margin % Historical Data

* Premium members only.

The historical data trend for ProbeLeader Co'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.

ProbeLeader Co Operating Margin % Chart

ProbeLeader Co Annual Data
Trend Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Operating Margin %
Get a 7-Day Free Trial 7.36 8.39 3.77 -8.65 -5.26

ProbeLeader Co Semi-Annual Data
Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 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 -2.11 -10.43 -7.15 -3.24 -7.59

ROCO:5246 vs LRCX, AMAT, KLAC: Operating Margin % Comparison

For the Semiconductor Equipment & Materials subindustry, ProbeLeader Co'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.


ProbeLeader Co Operating Margin % vs Semiconductors Industry

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

* The bar in red indicates where ProbeLeader Co's Operating Margin % falls into.


ROCO:5246
46GF Score
ProbeLeader Co Ltd ROCO:5246
Operating Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

ProbeLeader Co 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.

ProbeLeader Co'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 )
=-54.012 / 1026.526
=-5.26 %

ProbeLeader Co'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 )
=-36.265 / 477.944
=-7.59 %

* 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 -7.59% mean?
ProbeLeader Co (ROCO:5246) has a Operating Margin % of -7.59% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on ProbeLeader Co and its competitors. According to the industry distribution chart, ProbeLeader Co ranks #742 out of 1023 companies in the Semiconductors industry, placing it in the top 72.5%.
Is ProbeLeader Co's Operating Margin % too high?
ProbeLeader Co's current Operating Margin % is -7.59%. Based on the distribution chart, ProbeLeader Co ranks #742 out of 1023 companies in the Semiconductors industry, which is below the industry midpoint. Overall, ProbeLeader Co has a GF Score™ of 46/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does ProbeLeader Co's Operating Margin % compare to LRCX and AMAT?
According to the Semiconductors industry distribution chart, ProbeLeader Co ranks #742 out of 1023 companies for Operating Margin %. This places ProbeLeader Co 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 ProbeLeader Co 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. ProbeLeader Co's current Operating Margin % is -7.59%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is ProbeLeader Co stock overvalued right now?
Based on GuruFocus' analysis, ProbeLeader Co (ROCO:5246) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$17.94, compared to a current price of NT$170.50 — trading 850.4% above its estimated fair value. The current Operating Margin % is -7.59%. ProbeLeader Co's overall GF Score™ is 46/100 with 5 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 ProbeLeader Co (ROCO:5246), the current Operating Margin % is -7.59% 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 ProbeLeader Co (ROCO:5246) Overvalued in 2026?

Based on GuruFocus' analysis, ProbeLeader Co stock appears to be overvalued. The current stock price of NT$170.50 is trading 850.4% above its estimated GF Value™ of NT$17.94. GuruFocus considers ProbeLeader Co to be Significantly Overvalued.

Key valuation signals for ROCO:5246:

  • Operating Margin %: -7.59%
  • GF Value™: NT$17.94 vs. price of NT$170.50 (850.4% above fair value)
  • GF Score™: 46/100 with 5 warning signs

No single metric tells the full story. See the ROCO:5246 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


ProbeLeader Co Business Description

Address No.16, Jinshui Street, Xiangshan District, Hsinchu, TWN, 30090
ProbeLeader Co Ltd is engaged in designing and manufacturing of testing solutions for semiconductor and LCD panel industries. Its products include probe cards, Load-Boards, IC sockets for logic & DRAM ICs. Other than providing testing solutions for semiconductor and LCD panel industries, the company has also extended its business to testing solutions for optoelectronics and passive components. It does not only design, manufactures customized testing tools but also deal with sales, relocation, refurbishment and after-services of used-equipments.
46GF Score

Get the complete analysis for ROCO:5246

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

NT$170.50
Price
NT$17.94
GF Value