St Shine Optical Co (ROCO:1565) OCF Margin %: 41.30% (As of Dec. 2025) — 84% Above Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

ROCO:1565 St Shine Optical Co Ltd ROCO:1565
67 GF Score
Price NT$95.80
GF Value NT$171.33
Valuation Possible Value Trap
! 4 Warning Signs
View Full Analysis

What is St Shine Optical Co OCF Margin %?

St Shine Optical Co ROCO:1565 -0.93% 67 OCF Margin % is 41.30% as of Dec. 2025, which is 84% above its 10-year median of 22.47. 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 68.18% on this metric.

OCF Margin % is calculated as Cash Flow from Operations divided by its Revenue. St Shine Optical Co's Cash Flow from Operations for the three months ended in Dec. 2025 was NT$389 Mil. St Shine Optical Co's Revenue for the three months ended in Dec. 2025 was NT$942 Mil. Therefore, St Shine Optical Co's OCF Margin % for the quarter that ended in Dec. 2025 was 41.30%.

As of today, St Shine Optical Co's current OCF Yield % is 12.11%.

The historical rank and industry rank for St Shine Optical Co's OCF Margin % or its related term are showing as below:

ROCO:1565' s OCF Margin % Range Over the Past 10 Years
Min: 14.38   Med: 22.47   Max: 37.12
Current: 14.38


During the past 13 years, the highest OCF Margin % of St Shine Optical Co was 37.12%. The lowest was 14.38%. And the median was 22.47%.

ROCO:1565's OCF Margin % is ranked better than
68.18% of 817 companies
in the Medical Devices & Instruments industry
Industry Median: 5.82 vs ROCO:1565: 14.38


St Shine Optical Co OCF Margin % Related Terms


St Shine Optical Co OCF Margin % Historical Data

* Premium members only.

The historical data trend for St Shine Optical Co's OCF 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.

St Shine Optical Co OCF Margin % Chart

St Shine Optical Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
OCF Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 22.95 25.75 21.98 21.00 14.38

St Shine Optical Co Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
OCF 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 37.52 10.28 2.93 5.74 41.30

ROCO:1565 vs ISRG, BDX, MDLN: OCF Margin % Comparison

For the Medical Instruments & Supplies subindustry, St Shine Optical Co's OCF Margin %, along with its competitors' market caps and OCF 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 OCF Margin % vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, St Shine Optical Co's OCF Margin % distribution charts can be found below:

* The bar in red indicates where St Shine Optical Co's OCF Margin % falls into.


ROCO:1565
67GF Score
St Shine Optical Co Ltd ROCO:1565
OCF Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

St Shine Optical Co OCF Margin % Calculation

OCF Margin % is the ratio of Cash Flow from Operations divided by net sales or Revenue, usually presented in percent.

St Shine Optical Co's OCF Margin for the fiscal year that ended in Dec. 2025 is calculated as

OCF Margin=Cash Flow from Operations (A: Dec. 2025 )/Revenue (A: Dec. 2025 )
=592.16/4116.858
=14.38 %

St Shine Optical Co's OCF Margin for the quarter that ended in Dec. 2025 is calculated as

OCF Margin=Cash Flow from Operations (Q: Dec. 2025 )/Revenue (Q: Dec. 2025 )
=389.205/942.474
=41.30 %

* 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 OCF Margin % →
What does a OCF Margin % of 41.30% mean?
St Shine Optical Co (ROCO:1565) has a OCF Margin % of 41.30% as of Dec. 2025. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on St Shine Optical Co and its competitors. This is 84% above median its historical median of 22.47. Over the past decade, St Shine Optical Co's OCF Margin % has ranged from 14.38 to 37.12. According to the industry distribution chart, St Shine Optical Co ranks #260 out of 817 companies in the Medical Devices & Instruments industry, placing it in the top 31.8%.
Is St Shine Optical Co's OCF Margin % too high?
St Shine Optical Co's current OCF Margin % of 41.30% is 84% above median its 10-year median of 22.47. Over the past 10 years, this metric has ranged from a low of 14.38 to a high of 37.12. The Medical Devices & Instruments industry median OCF Margin % is 5.82. St Shine Optical Co's value of 41.30% is 609.6% above this industry median. Based on the distribution chart, St Shine Optical Co ranks #260 out of 817 companies in the Medical Devices & Instruments industry, which is above the industry midpoint. 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 OCF Margin % compare to ISRG and BDX?
According to the Medical Devices & Instruments industry distribution chart, St Shine Optical Co ranks #260 out of 817 companies for OCF Margin %. This puts St Shine Optical Co in the upper half of its industry. The industry median OCF Margin % is 5.82. St Shine Optical Co's value of 41.30% is 609.6% above this benchmark. Historically, St Shine Optical Co's own OCF Margin % has ranged from 14.38 to 37.12 over the past decade. While the company's 10-year median is 22.47 vs. the industry median of 5.82, St Shine Optical Co has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good OCF Margin % for a Medical Devices & Instruments company?
The median OCF Margin % among Medical Devices & Instruments companies is 5.82, based on 817 companies in the industry. Companies in the top quartile (top 25%) have a OCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, OCF Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. St Shine Optical Co's current OCF Margin % of 41.30% is 609.6% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high OCF Margin % mean?
A high OCF Margin % can signal that a stock is expensive relative to its fundamentals. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on St Shine Optical Co and its competitors. For the Medical Devices & Instruments industry, the median OCF Margin % is 5.82 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. St Shine Optical Co's current OCF Margin % is 41.30%, which is 84% above median its own 10-year median of 22.47. 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$95.80 — trading 44.1% below its estimated fair value. The current OCF Margin % is 41.30%, which is 84% above median its 10-year median of 22.47 and 609.6% above the Medical Devices & Instruments industry median of 5.82. 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 OCF Margin % calculated?
OCF Margin % is calculated from a company's financial statements. For St Shine Optical Co (ROCO:1565), the current OCF Margin % is 41.30% 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$95.80 is trading 44.1% 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:

  • OCF Margin %: 41.30% (84% above median its 10-year median of 22.47)
  • GF Value™: NT$171.33 vs. price of NT$95.80 (44.1% below fair value)
  • GF Score™: 67/100 with 4 warning signs
  • Industry Position: 609.6% above the Medical Devices & Instruments median (#260 of 817)

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 Business Description

Address Datong Road, 5th Floor, No. 276, Section 1, Xizhi District, New Taipei City, TWN, 22146
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

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

NT$95.80
Price
NT$171.33
GF Value