Truelight (ROCO:3234) OCF Yield %: -0.28 (As of Jul. 21, 2026)

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ROCO:3234 Truelight Corp ROCO:3234
36 GF Score
Price NT$98.70
GF Value NT$33.55
Valuation Significantly Overvalued
! 2 Warning Signs
View Full Analysis

What is Truelight OCF Yield %?

Truelight ROCO:3234 +2.49% 36 OCF Yield % is -0.28 as of Jul. 21, 2026. GuruFocus rates ROCO:3234 with a GF Score™ of 36/100 and a GF Value™ of NT$33.55 (Significantly Overvalued). The stock has 2 warning signs investors should review. Among 1,028 Semiconductors companies, Truelight ranks worse than 70.43% 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, Truelight's Trailing 12-Month Cash Flow from Operations is NT$-31.3 Mil, and Market Cap is NT$10,735.0 Mil. Therefore, Truelight's OCF Yield % for today is -0.28%.

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

ROCO:3234' s OCF Yield % Range Over the Past 10 Years
Min: -5.24   Med: 9.28   Max: 24.26
Current: -0.28


During the past 13 years, the highest OCF Yield % of Truelight was 24.26%. The lowest was -5.24%. And the median was 9.28%.

ROCO:3234's OCF Yield % is ranked worse than
70.43% of 1028 companies
in the Semiconductors industry
Industry Median: 1.62 vs ROCO:3234: -0.28

Truelight's OCF Margin % for the quarter that ended in Dec. 2025 was %.


Truelight 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.


Truelight OCF Yield % Related Terms


Truelight OCF Yield % Historical Data

* Premium members only.

The historical data trend for Truelight'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.

Truelight OCF Yield % Chart

Truelight 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 10.04 9.65 -4.95 -1.10 -0.59

Truelight Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 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 -0.72 -3.34 4.96 -2.76 -1.26

ROCO:3234 vs NVDA, AVGO, MU: OCF Yield % Comparison

For the Semiconductors subindustry, Truelight'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.


Truelight OCF Yield % vs Semiconductors Industry

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

* The bar in red indicates where Truelight's OCF Yield % falls into.


ROCO:3234
36GF Score
Truelight Corp ROCO:3234
OCF Yield % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Truelight 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.

Truelight's OCF Yield % for the fiscal year that ended in Dec. 2025 is calculated as

OCF Yield %=Cash Flow from Operations / Market Cap
=-31.332 / 5322.93125
=-0.59%

Truelight'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
=-16.747 * 4 / 5322.93125
=-1.26%

* 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 -0.28 mean?
Truelight (ROCO:3234) has a OCF Yield % of -0.28 as of Jul. 21, 2026. OCF Yield is calculated as Cash Flow from Operations divided by Market Capitalization. View historical data on Truelight and its competitors. According to the industry distribution chart, Truelight ranks #724 out of 1028 companies in the Semiconductors industry, placing it in the top 70.4%.
Is Truelight's OCF Yield % too high?
Truelight's current OCF Yield % is -0.28. Based on the distribution chart, Truelight ranks #724 out of 1028 companies in the Semiconductors industry, which is below the industry midpoint. Overall, Truelight has a GF Score™ of 36/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Truelight's OCF Yield % compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Truelight ranks #724 out of 1028 companies for OCF Yield %. This places Truelight in the lower half of its industry. The industry median OCF Yield % is 1.62. 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 1.62, 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 Truelight and its competitors. For the Semiconductors industry, the median OCF Yield % is 1.62 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Truelight's current OCF Yield % is -0.28. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Truelight stock overvalued right now?
Based on GuruFocus' analysis, Truelight (ROCO:3234) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$33.55, compared to a current price of NT$98.70 — trading 194.2% above its estimated fair value. The current OCF Yield % is -0.28. Truelight's overall GF Score™ is 36/100 with 2 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 Truelight (ROCO:3234), the current OCF Yield % is -0.28 as of Jul. 21, 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 Truelight (ROCO:3234) Overvalued in 2026?

Based on GuruFocus' analysis, Truelight stock appears to be overvalued. The current stock price of NT$98.70 is trading 194.2% above its estimated GF Value™ of NT$33.55. GuruFocus considers Truelight to be Significantly Overvalued.

Key valuation signals for ROCO:3234:

  • OCF Yield %: -0.28
  • GF Value™: NT$33.55 vs. price of NT$98.70 (194.2% above fair value)
  • GF Score™: 36/100 with 2 warning signs

No single metric tells the full story. See the ROCO:3234 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Truelight Business Description

Address No.21, Prosperity Road 1, Hsinchu Science Park, Hsinchu, TWN, 300091
Truelight Corp engages in the manufacturing and supply of components for the local area networks, storage area network, fiber to the home, and metro area network. The business items of the company are design, research and development, Production, and sales, which are applied to optical fiber communication, mobile communication base station interconnection, cloud data center, 3D Sensing/Near-Field Sensing/Flood Illumination Vertical Cavity Surface Emitting Laser, Edge laser, photodiode, including components, sub-modules, Light engine/AOC and other types of products. The products of the company include VCSEL chips, FP-LD chips, DFB-LD chips, and PIN chips.
36GF Score

Get the complete analysis for ROCO:3234

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

NT$98.70
Price
NT$33.55
GF Value