FCF Margin % is calculated as Free Cash Flow divided by its Revenue. iSTART-TEK's Free Cash Flow for the
six
months ended in Dec. 2025 was NT$-46.7 Mil. iSTART-TEK's Revenue for the
six
months ended in Dec. 2025 was NT$68.0 Mil. Therefore, iSTART-TEK's FCF Margin % for the quarter that ended in Dec. 2025 was -68.69%.
The historical rank and industry rank for iSTART-TEK's FCF Margin % or its related term are showing as below:
ROCO:6786'
s FCF Margin % Range Over the Past 10 Years
Min: -865.77 Med: -252.56 Max: -84.61
Current: -84.61
During the past 10 years, the highest FCF Margin % of iSTART-TEK was -84.61%. The lowest was -865.77%. And the median was -252.56%.
ROCO:6786's FCF Margin % is ranked worse than 94.23% of 1023
companies
in the Semiconductors industry
Industry Median: -0.76
vs ROCO:6786: -84.61
iSTART-TEK FCF Margin % Related Terms
iSTART-TEK FCF Margin % Historical Data
* Premium members only.
The historical data trend for iSTART-TEK'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:6786 vs NVDA, AVGO, MU: FCF Margin % Comparison
For the Semiconductors subindustry, iSTART-TEK'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.
iSTART-TEK FCF Margin % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, iSTART-TEK's FCF Margin % distribution charts can be found below:
* The bar in red indicates where iSTART-TEK'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.
iSTART-TEK (ROCO:6786) has a FCF Margin % of -68.69% as of Dec. 2025. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on iSTART-TEK and its competitors. According to the industry distribution chart, iSTART-TEK ranks #964 out of 1023 companies in the Semiconductors industry, placing it in the top 94.2%.
Is iSTART-TEK's FCF Margin % too high?
iSTART-TEK's current FCF Margin % is -68.69%. Based on the distribution chart, iSTART-TEK ranks #964 out of 1023 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, iSTART-TEK has a GF Score™ of 72/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does iSTART-TEK's FCF Margin % compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, iSTART-TEK ranks #964 out of 1023 companies for FCF Margin %. This places iSTART-TEK in the lower half of its industry. 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 iSTART-TEK and its competitors. iSTART-TEK's current FCF Margin % is -68.69%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is iSTART-TEK stock overvalued right now?
Based on GuruFocus' analysis, iSTART-TEK (ROCO:6786) is currently considered Possible Value Trap. The stock's GF Value™ is NT$148.26, compared to a current price of NT$70.00 — trading 52.8% below its estimated fair value. The current FCF Margin % is -68.69%. iSTART-TEK's overall GF Score™ is 72/100 with 3 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 iSTART-TEK (ROCO:6786), the current FCF Margin % is -68.69% 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 iSTART-TEK (ROCO:6786) Overvalued in 2026?
Based on GuruFocus' analysis, iSTART-TEK stock appears to be undervalued.
The current stock price of NT$70.00 is trading 52.8% below its estimated GF Value™ of NT$148.26.
GuruFocus considers iSTART-TEK to be Possible Value Trap.
Key valuation signals for ROCO:6786:
FCF Margin %: -68.69%
GF Value™: NT$148.26 vs. price of NT$70.00 (52.8% below fair value)
No single metric tells the full story. See the ROCO:6786 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
iSTART-TEK Inc provides testing and repairing technical of memory. The company offers configurable memory testing circuits and software and hardware technology development, licensing service and repairing solutions based on own memory testing and repairing patents. The product portfolio include EZ-BIST and Start V2 and Customized IP.
72GF Score
Get the complete analysis for ROCO:6786
FCF Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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