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St Shine Optical CoROCO:1565 -2.51%67 FCF Margin % is 39.21% as of Dec. 2025, which is 115% above its 10-year median of 18.26. GuruFocus rates ROCO:1565 with a GF Score™ of 67/100 and a GF Value™ of NT$171.33 (Possible Value Trap). The stock has 4 warning signs investors should review. Among 817 Medical Devices & Instruments companies, St Shine Optical Co ranks better than 78.95% on this metric.
The historical rank and industry rank for St Shine Optical Co's FCF Margin % or its related term are showing as below:
ROCO:1565'
s FCF Margin % Range Over the Past 10 Years
Min: 2.67 Med: 18.26 Max: 36.49
Current: 12.34
During the past 13 years, the highest FCF Margin % of St Shine Optical Co was 36.49%. The lowest was 2.67%. And the median was 18.26%.
ROCO:1565's FCF Margin % is ranked better than 78.95% of 817
companies
in the Medical Devices & Instruments industry
Industry Median: -0.54
vs ROCO:1565: 12.34
St Shine Optical Co FCF Margin % Related Terms
St Shine Optical Co FCF Margin % Historical Data
* Premium members only.
The historical data trend for St Shine Optical Co'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:1565 vs ISRG, BDX, MDLN: FCF Margin % Comparison
For the Medical Instruments & Supplies subindustry, St Shine Optical Co'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.
St Shine Optical Co FCF Margin % vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, St Shine Optical Co's FCF Margin % distribution charts can be found below:
* The bar in red indicates where St Shine Optical Co'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.
St Shine Optical Co (ROCO:1565) has a FCF Margin % of 39.21% as of Dec. 2025. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on St Shine Optical Co and its competitors. This is 115% above median its historical median of 18.26. Over the past decade, St Shine Optical Co's FCF Margin % has ranged from 2.67 to 36.49. According to the industry distribution chart, St Shine Optical Co ranks #172 out of 817 companies in the Medical Devices & Instruments industry, placing it in the top 21.1%.
Is St Shine Optical Co's FCF Margin % too high?
St Shine Optical Co's current FCF Margin % of 39.21% is 115% above median its 10-year median of 18.26. Over the past 10 years, this metric has ranged from a low of 2.67 to a high of 36.49. Based on the distribution chart, St Shine Optical Co ranks #172 out of 817 companies in the Medical Devices & Instruments industry, which is in the top quartile — a strong position relative to peers. Overall, St Shine Optical Co has a GF Score™ of 67/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does St Shine Optical Co's FCF Margin % compare to ISRG and BDX?
According to the Medical Devices & Instruments industry distribution chart, St Shine Optical Co ranks #172 out of 817 companies for FCF Margin %. This places St Shine Optical Co in the top 21% of its industry — outperforming the majority of peers. Historically, St Shine Optical Co's own FCF Margin % has ranged from 2.67 to 36.49 over the past decade. 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 Medical Devices & Instruments company?
A good FCF Margin % depends on the Medical Devices & Instruments 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 St Shine Optical Co and its competitors. St Shine Optical Co's current FCF Margin % is 39.21%, which is 115% above median its own 10-year median of 18.26. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is St Shine Optical Co stock overvalued right now?
Based on GuruFocus' analysis, St Shine Optical Co (ROCO:1565) is currently considered Possible Value Trap. The stock's GF Value™ is NT$171.33, compared to a current price of NT$93.40 — trading 45.5% below its estimated fair value. The current FCF Margin % is 39.21%, which is 115% above median its 10-year median of 18.26. St Shine Optical Co's overall GF Score™ is 67/100 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 St Shine Optical Co (ROCO:1565), the current FCF Margin % is 39.21% 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 St Shine Optical Co (ROCO:1565) Overvalued in 2026?
Based on GuruFocus' analysis, St Shine Optical Co stock appears to be undervalued.
The current stock price of NT$93.40 is trading 45.5% below its estimated GF Value™ of NT$171.33.
GuruFocus considers St Shine Optical Co to be Possible Value Trap.
Key valuation signals for ROCO:1565:
FCF Margin %: 39.21% (115% above median its 10-year median of 18.26)
GF Value™: NT$171.33 vs. price of NT$93.40 (45.5% below fair value)
No single metric tells the full story. See the ROCO:1565 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
St Shine Optical Co Ltd is engaged in the manufacturing and trading of contact lenses (soft and hard), optical lenses, and related products. Geographically, the company generates maximum of its revenue from Asia (excluding Taiwan), followed by Europe, Taiwan, and America.
67GF Score
Get the complete analysis for ROCO:1565
FCF Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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