Zilltek TechnologyROCO:6679 +0.76%83 FCF Margin % is 57.81% as of Dec. 2025, which is 433% above its 10-year median of 10.85. GuruFocus rates ROCO:6679 with a GF Score™ of 83/100 and a GF Value™ of NT$317.77 (Modestly Undervalued). The stock has 4 warning signs investors should review. Among 1,023 Semiconductors companies, Zilltek Technology ranks better than 95.99% on this metric.
The historical rank and industry rank for Zilltek Technology's FCF Margin % or its related term are showing as below:
ROCO:6679'
s FCF Margin % Range Over the Past 10 Years
Min: -12.9 Med: 10.85 Max: 32.59
Current: 32.59
During the past 11 years, the highest FCF Margin % of Zilltek Technology was 32.59%. The lowest was -12.90%. And the median was 10.85%.
ROCO:6679's FCF Margin % is ranked better than 95.99% of 1023
companies
in the Semiconductors industry
Industry Median: -0.76
vs ROCO:6679: 32.59
Zilltek Technology FCF Margin % Related Terms
Zilltek Technology FCF Margin % Historical Data
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The historical data trend for Zilltek Technology's FCF 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:6679 vs NVDA, AVGO, MU: FCF Margin % Comparison
For the Semiconductors subindustry, Zilltek Technology's FCF Margin %, along with its competitors' market caps and FCF 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.
Zilltek Technology FCF Margin % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Zilltek Technology's FCF Margin % distribution charts can be found below:
* The bar in red indicates where Zilltek Technology's FCF 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.
Zilltek Technology (ROCO:6679) has a FCF Margin % of 57.81% as of Dec. 2025. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Zilltek Technology and its competitors. This is 433% above median its historical median of 10.85. According to the industry distribution chart, Zilltek Technology ranks #41 out of 1023 companies in the Semiconductors industry, placing it in the top 4%.
Is Zilltek Technology's FCF Margin % too high?
Zilltek Technology's current FCF Margin % of 57.81% is 433% above median its 10-year median of 10.85. Based on the distribution chart, Zilltek Technology ranks #41 out of 1023 companies in the Semiconductors industry, which is in the top quartile — a strong position relative to peers. Overall, Zilltek Technology has a GF Score™ of 83/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Zilltek Technology's FCF Margin % compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Zilltek Technology ranks #41 out of 1023 companies for FCF Margin %. This places Zilltek Technology in the top 4% of its industry — outperforming the majority of peers. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good FCF Margin % for a Semiconductors company?
A good FCF Margin % depends on the Semiconductors industry context. However, FCF 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 FCF Margin % mean?
A high FCF Margin % can signal that a stock is expensive relative to its fundamentals. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Zilltek Technology and its competitors. Zilltek Technology's current FCF Margin % is 57.81%, which is 433% above median its own 10-year median of 10.85. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Zilltek Technology stock overvalued right now?
Based on GuruFocus' analysis, Zilltek Technology (ROCO:6679) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$317.77, compared to a current price of NT$265.50 — trading 16.4% below its estimated fair value. The current FCF Margin % is 57.81%, which is 433% above median its 10-year median of 10.85. Zilltek Technology's overall GF Score™ is 83/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is FCF Margin % calculated?
FCF Margin % is calculated from a company's financial statements. For Zilltek Technology (ROCO:6679), the current FCF Margin % is 57.81% 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 Zilltek Technology (ROCO:6679) Overvalued in 2026?
Based on GuruFocus' analysis, Zilltek Technology stock appears to be undervalued.
The current stock price of NT$265.50 is trading 16.4% below its estimated GF Value™ of NT$317.77.
GuruFocus considers Zilltek Technology to be Modestly Undervalued.
Key valuation signals for ROCO:6679:
FCF Margin %: 57.81% (433% above median its 10-year median of 10.85)
GF Value™: NT$317.77 vs. price of NT$265.50 (16.4% below fair value)
No single metric tells the full story. See the ROCO:6679 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Zilltek Technology Corp engaged in the manufacturing of electronic components, buying/selling services, research and development, manufacturing, and sales of sensor and application chipsets. Company focuses on developing compact, energy-saving, and high-performance MEMS technologies to meet a variety of acoustic applications, including but not limited to laptops, TVs, tablets, smartphones, smart watches, smart speakers, drones, hearing aids, IoT devices, TWS headphones, sports equipment, and mobile infotainment systems. It operates in Taiwan, China and Other countries. Majority of revenue is from Taiwan.
83GF Score
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