3S Silicon Tech (ROCO:5297) OCF Yield %: -0.57 (As of Jul. 26, 2026)

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:5297 3S Silicon Tech Inc ROCO:5297
68 GF Score
Price NT$69.50
GF Value NT$26.91
Valuation Significantly Overvalued
! 5 Warning Signs
View Full Analysis

What is 3S Silicon Tech OCF Yield %?

3S Silicon Tech ROCO:5297 -0.71% 68 OCF Yield % is -0.57 as of Jul. 26, 2026. GuruFocus rates ROCO:5297 with a GF Score™ of 68/100 and a GF Value™ of NT$26.91 (Significantly Overvalued). The stock has 5 warning signs investors should review. Among 1,028 Semiconductors companies, 3S Silicon Tech ranks worse than 71.6% on this metric.

OCF Yield % is calculated as Cash Flow from Operations divided by Market Capitalization. It is a financial solvency ratio that compares the operating cash flow a company is expected to earn against its market value.

As of today, 3S Silicon Tech's Trailing 12-Month Cash Flow from Operations is NT$-14.8 Mil, and Market Cap is NT$2,616.8 Mil. Therefore, 3S Silicon Tech's OCF Yield % for today is -0.57%.

The historical rank and industry rank for 3S Silicon Tech's OCF Yield % or its related term are showing as below:

ROCO:5297' s OCF Yield % Range Over the Past 10 Years
Min: -11.8   Med: 6.76   Max: 21.5
Current: -0.57


During the past 13 years, the highest OCF Yield % of 3S Silicon Tech was 21.50%. The lowest was -11.80%. And the median was 6.76%.

ROCO:5297's OCF Yield % is ranked worse than
71.6% of 1028 companies
in the Semiconductors industry
Industry Median: 1.595 vs ROCO:5297: -0.57

3S Silicon Tech's OCF Margin % for the quarter that ended in Dec. 2025 was %.


3S Silicon Tech OCF Yield % Explanation

Similar to Earnings Yield %, OCF Yield % is financial solvency ratio. A lower ratio suggests a less attractive investment, indicating that investors might not receive substantial returns in proportion to their investment. Conversely, a high operating cash flow yield signals that a company generates sufficient cash to comfortably meet its debts, obligations, and dividend payments, making it a promising investment choice.


3S Silicon Tech OCF Yield % Related Terms


3S Silicon Tech OCF Yield % Historical Data

* Premium members only.

The historical data trend for 3S Silicon Tech's OCF Yield % 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.

3S Silicon Tech OCF Yield % Chart

3S Silicon Tech Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
OCF Yield %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 18.52 -10.23 5.40 8.48 -1.36

3S Silicon Tech Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
OCF Yield % 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 28.58 1.48 15.11 -8.72 8.75

ROCO:5297 vs NVDA, AVGO, MU: OCF Yield % Comparison

For the Semiconductors subindustry, 3S Silicon Tech's OCF Yield %, along with its competitors' market caps and OCF Yield % 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.


3S Silicon Tech OCF Yield % vs Semiconductors Industry

For the Semiconductors industry and Technology sector, 3S Silicon Tech's OCF Yield % distribution charts can be found below:

* The bar in red indicates where 3S Silicon Tech's OCF Yield % falls into.


ROCO:5297
68GF Score
3S Silicon Tech Inc ROCO:5297
OCF Yield % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

3S Silicon Tech OCF Yield % Calculation

OCF Yield % is a financial solvency ratio that compares the operating cash flow a company is expected to earn against its market value.

3S Silicon Tech's OCF Yield % for the fiscal year that ended in Dec. 2025 is calculated as

OCF Yield %=Cash Flow from Operations / Market Cap
=-14.789 / 1084.8384
=-1.36%

3S Silicon Tech's annualized OCF Yield % for the quarter that ended in Dec. 2025 is calculated as

OCF Yield %=Cash Flow from Operations * Annualized Factor / Market Cap
=47.469 * 2 / 1084.8384
=8.75%

* 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 Yield % →
What does a OCF Yield % of -0.57 mean?
3S Silicon Tech (ROCO:5297) has a OCF Yield % of -0.57 as of Jul. 26, 2026. OCF Yield is calculated as Cash Flow from Operations divided by Market Capitalization. View historical data on 3S Silicon Tech and its competitors. According to the industry distribution chart, 3S Silicon Tech ranks #736 out of 1028 companies in the Semiconductors industry, placing it in the top 71.6%.
Is 3S Silicon Tech's OCF Yield % too high?
3S Silicon Tech's current OCF Yield % is -0.57. Based on the distribution chart, 3S Silicon Tech ranks #736 out of 1028 companies in the Semiconductors industry, which is below the industry midpoint. Overall, 3S Silicon Tech has a GF Score™ of 68/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does 3S Silicon Tech's OCF Yield % compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, 3S Silicon Tech ranks #736 out of 1028 companies for OCF Yield %. This places 3S Silicon Tech in the lower half of its industry. The industry median OCF Yield % is 1.60. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good OCF Yield % for a Semiconductors company?
The median OCF Yield % among Semiconductors companies is 1.60, based on 1,028 companies in the industry. Companies in the top quartile (top 25%) have a OCF Yield % significantly above this median, while those in the bottom quartile fall well below. However, OCF Yield % 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 OCF Yield % mean?
A high OCF Yield % can signal that a stock is expensive relative to its fundamentals. OCF Yield is calculated as Cash Flow from Operations divided by Market Capitalization. View historical data on 3S Silicon Tech and its competitors. For the Semiconductors industry, the median OCF Yield % is 1.60 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. 3S Silicon Tech's current OCF Yield % is -0.57. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is 3S Silicon Tech stock overvalued right now?
Based on GuruFocus' analysis, 3S Silicon Tech (ROCO:5297) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$26.91, compared to a current price of NT$69.50 — trading 158.3% above its estimated fair value. The current OCF Yield % is -0.57. 3S Silicon Tech's overall GF Score™ is 68/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is OCF Yield % calculated?
OCF Yield % is calculated from a company's financial statements. For 3S Silicon Tech (ROCO:5297), the current OCF Yield % is -0.57 as of Jul. 26, 2026. 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 3S Silicon Tech (ROCO:5297) Overvalued in 2026?

Based on GuruFocus' analysis, 3S Silicon Tech stock appears to be overvalued. The current stock price of NT$69.50 is trading 158.3% above its estimated GF Value™ of NT$26.91. GuruFocus considers 3S Silicon Tech to be Significantly Overvalued.

Key valuation signals for ROCO:5297:

  • OCF Yield %: -0.57
  • GF Value™: NT$26.91 vs. price of NT$69.50 (158.3% above fair value)
  • GF Score™: 68/100 with 5 warning signs

No single metric tells the full story. See the ROCO:5297 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


3S Silicon Tech Business Description

Address No. 169-2, Section 1, Kangle Road, 3rd Floor, Xinfeng Township, Hsinchu, TWN, 304
3S Silicon Tech Inc. is a Taiwan-based company that offers die bonding for discrete power devices. Its products include clip-die bonders for power devices, snap ovens, customized equipment, and an open lab platform. 3S also provides intelligent automatic assembly machine systems, focusing on the packaging technology of discrete power semiconductors, supported by solutions and services. The company's systems include die-attach machines, stencil printers, copper strip die bonders, vacuum reflow ovens, and formic acid vacuum reflow ovens.
68GF Score

Get the complete analysis for ROCO:5297

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

NT$69.50
Price
NT$26.91
GF Value