Oriental System Technology (ROCO:6819) FCF Margin %: 33.62% (As of Dec. 2025)

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:6819 Oriental System Technology Inc ROCO:6819
65 GF Score
Price NT$39.20
GF Value NT$24.33
Valuation Significantly Overvalued
! 2 Warning Signs
View Full Analysis

What is Oriental System Technology FCF Margin %?

Oriental System Technology ROCO:6819 -2.61% 65 FCF Margin % is 33.62% as of Dec. 2025. GuruFocus rates ROCO:6819 with a GF Score™ of 65/100 and a GF Value™ of NT$24.33 (Significantly Overvalued). The stock has 2 warning signs investors should review. Among 1,022 Semiconductors companies, Oriental System Technology ranks better than 91.19% on this metric.

FCF Margin % is calculated as Free Cash Flow divided by its Revenue. Oriental System Technology's Free Cash Flow for the six months ended in Dec. 2025 was NT$36.4 Mil. Oriental System Technology's Revenue for the six months ended in Dec. 2025 was NT$108.3 Mil. Therefore, Oriental System Technology's FCF Margin % for the quarter that ended in Dec. 2025 was 33.62%.

As of today, Oriental System Technology's current FCF Yield % is 3.98%.

The historical rank and industry rank for Oriental System Technology's FCF Margin % or its related term are showing as below:

ROCO:6819' s FCF Margin % Range Over the Past 10 Years
Min: -42.81   Med: -2.97   Max: 27.5
Current: 23.79

During the past 9 years, the highest FCF Margin % of Oriental System Technology was 27.50%. The lowest was -42.81%. And the median was -2.97%.

ROCO:6819's FCF Margin % is ranked better than
91.19% of 1022 companies
in the Semiconductors industry
Industry Median: -0.875 vs ROCO:6819: 23.79

Oriental System Technology FCF Margin % Related Terms

Oriental System Technology FCF Margin % Historical Data

* Premium members only.

The historical data trend for Oriental System 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.

Oriental System Technology FCF Margin % Chart

Oriental System Technology Annual Data
Trend Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
FCF Margin %
Get a 7-Day Free Trial Premium Member Only -42.81 -2.97 20.79 27.50 22.16

Oriental System Technology Semi-Annual Data
Dec17 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
FCF 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 37.25 18.28 37.08 14.58 33.62

ROCO:6819 vs NVDA, AVGO, MU: FCF Margin % Comparison

For the Semiconductors subindustry, Oriental System 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.

Oriental System Technology FCF Margin % vs Semiconductors Industry

For the Semiconductors industry and Technology sector, Oriental System Technology's FCF Margin % distribution charts can be found below:

* The bar in red indicates where Oriental System Technology's FCF Margin % falls into.


ROCO:6819
65GF Score
Oriental System Technology Inc ROCO:6819
FCF Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Oriental System Technology FCF Margin % Calculation

FCF margin is the ratio of Free Cash Flow divided by net sales or Revenue, usually presented in percent.

Oriental System Technology's FCF Margin for the fiscal year that ended in Dec. 2025 is calculated as

FCF Margin=Free Cash Flow (A: Dec. 2025 )/Revenue (A: Dec. 2025 )
=49.623/223.911
=22.16 %

Oriental System Technology's FCF Margin for the quarter that ended in Dec. 2025 is calculated as

FCF Margin=Free Cash Flow (Q: Dec. 2025 )/Revenue (Q: Dec. 2025 )
=36.399/108.253
=33.62 %

* 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 FCF Margin % →
What does a FCF Margin % of 33.62% mean?
Oriental System Technology (ROCO:6819) has a FCF Margin % of 33.62% as of Dec. 2025. Free cash flow margin is the ratio of total free cash flow to net sales. View historical data on Oriental System Technology and its competitors. According to the industry distribution chart, Oriental System Technology ranks #90 out of 1022 companies in the Semiconductors industry, placing it in the top 8.8%.
Is Oriental System Technology's FCF Margin % too high?
Oriental System Technology's current FCF Margin % is 33.62%. Based on the distribution chart, Oriental System Technology ranks #90 out of 1022 companies in the Semiconductors industry, which is in the top quartile — a strong position relative to peers. Overall, Oriental System Technology has a GF Score™ of 65/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Oriental System Technology's FCF Margin % compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Oriental System Technology ranks #90 out of 1022 companies for FCF Margin %. This places Oriental System Technology in the top 9% 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 Oriental System Technology and its competitors. Oriental System Technology's current FCF Margin % is 33.62%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Oriental System Technology stock overvalued right now?
Based on GuruFocus' analysis, Oriental System Technology (ROCO:6819) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$24.33, compared to a current price of NT$39.20 — trading 61.1% above its estimated fair value. The current FCF Margin % is 33.62%. Oriental System Technology's overall GF Score™ is 65/100 with 2 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 Oriental System Technology (ROCO:6819), the current FCF Margin % is 33.62% 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 Oriental System Technology (ROCO:6819) Overvalued in 2026?

Based on GuruFocus' analysis, Oriental System Technology stock appears to be overvalued. The current stock price of NT$39.20 is trading 61.1% above its estimated GF Value™ of NT$24.33. GuruFocus considers Oriental System Technology to be Significantly Overvalued.

Key valuation signals for ROCO:6819:

  • FCF Margin %: 33.62%
  • GF Value™: NT$24.33 vs. price of NT$39.20 (61.1% above fair value)
  • GF Score™: 65/100 with 2 warning signs

No single metric tells the full story. See the ROCO:6819 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

Oriental System Technology Business Description

Address No. 25, Industry East 9th Road, 2nd Floor, Hsinchu Science Park, Hsinchu, TWN, 30075
Oriental System Technology Inc. is engaged in the manufacturing of sensors. The product portfolio includes thermopile sensors, NDIR gas sensors, and optoelectronic components.
65GF Score

Get the complete analysis for ROCO:6819

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

NT$39.20
Price
NT$24.33
GF Value