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.
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.
TruelightROCO:3234 +9.94%38 5-Year Yield-on-Cost % is 0.00 as of Aug. 26, 2026. GuruFocus rates ROCO:3234 with a GF Score™ of 38/100 and a GF Value™ of NT$38.35 (Significantly Overvalued). The stock has 6 warning signs investors should review. Among 534 Semiconductors companies, Truelight ranks worse than 187265.73% on this metric.
Truelight's yield on cost for the quarter that ended in Jun. 2026 was 0.00.
The historical rank and industry rank for Truelight's 5-Year Yield-on-Cost % or its related term are showing as below:
During the past 13 years, Truelight's highest Yield on Cost was 12.87. The lowest was 2.27. And the median was 3.92.
ROCO:3234's 5-Year Yield-on-Cost % is not ranked *
in the Semiconductors industry.
Industry Median: 1.085 * Ranked among companies with meaningful 5-Year Yield-on-Cost % only.
Of course the risk here is that the company may not raise its dividends as it did before. The key is to select the companies that can consistently raise its dividends. Usually companies with long history of raising dividends tend to do so.
Truelight 5-Year Yield-on-Cost % Related Terms
ROCO:3234 vs NVDA, AVGO, MU: 5-Year Yield-on-Cost % Comparison
For the Semiconductors subindustry, Truelight's 5-Year Yield-on-Cost %, along with its competitors' market caps and 5-Year Yield-on-Cost % 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 5-Year Yield-on-Cost % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Truelight's 5-Year Yield-on-Cost % distribution charts can be found below:
* The bar in red indicates where Truelight's 5-Year Yield-on-Cost % falls into.
Dividend Yield % and dividend growth of a stock is an important factor for income investors. But if company A raises its dividend constantly faster than company B, company A's future dividend yield might be much higher than Company B's even if their yields are the same now and their stock prices do not change.
Yield on Cost assumes that you buy and the stock today, and hold it for 5 years. If the company raises it dividends at the same rate as it did over the past 5 years, the dividends investors receive annually in 5 years relative to the stock price today.
Therefore, Yield-on-Cost of Truelight is calculated as
Truelight (ROCO:3234) has a 5-Year Yield-on-Cost % of 0.00 as of Aug. 26, 2026. 5-Year Yield on Cost measures the expected yield based on a company's current yield and 5-year dividend growth. View historical data on Truelight and its competitors. Over the past decade, Truelight's 5-Year Yield-on-Cost % has ranged from 2.27 to 12.87. According to the industry distribution chart, Truelight ranks #999999 out of 534 companies in the Semiconductors industry.
Is Truelight's 5-Year Yield-on-Cost % too high?
Truelight's current 5-Year Yield-on-Cost % is 0.00. Over the past 10 years, this metric has ranged from a low of 2.27 to a high of 12.87. Based on the distribution chart, Truelight ranks #999999 out of 534 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, Truelight has a GF Score™ of 38/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Truelight's 5-Year Yield-on-Cost % compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Truelight ranks #999999 out of 534 companies for 5-Year Yield-on-Cost %. This places Truelight in the lower half of its industry. The industry median 5-Year Yield-on-Cost % is 1.09. Historically, Truelight's own 5-Year Yield-on-Cost % has ranged from 2.27 to 12.87 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 5-Year Yield-on-Cost % for a Semiconductors company?
The median 5-Year Yield-on-Cost % among Semiconductors companies is 1.09, based on 534 companies in the industry. Companies in the top quartile (top 25%) have a 5-Year Yield-on-Cost % significantly above this median, while those in the bottom quartile fall well below. However, 5-Year Yield-on-Cost % 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 5-Year Yield-on-Cost % mean?
A high 5-Year Yield-on-Cost % can signal that a stock is expensive relative to its fundamentals. 5-Year Yield on Cost measures the expected yield based on a company's current yield and 5-year dividend growth. View historical data on Truelight and its competitors. For the Semiconductors industry, the median 5-Year Yield-on-Cost % is 1.09 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Truelight's current 5-Year Yield-on-Cost % is 0.00. 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$38.35, compared to a current price of NT$175.45 — trading 357.5% above its estimated fair value. The current 5-Year Yield-on-Cost % is 0.00. Truelight's overall GF Score™ is 38/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 5-Year Yield-on-Cost % calculated?
5-Year Yield-on-Cost % is calculated from a company's financial statements. For Truelight (ROCO:3234), the current 5-Year Yield-on-Cost % is 0.00 as of Aug. 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 Truelight (ROCO:3234) Overvalued in 2026?
Based on GuruFocus' analysis, Truelight stock appears to be overvalued.
The current stock price of NT$175.45 is trading 357.5% above its estimated GF Value™ of NT$38.35.
GuruFocus considers Truelight to be Significantly Overvalued.
Key valuation signals for ROCO:3234:
5-Year Yield-on-Cost %: 0.00
GF Value™: NT$38.35 vs. price of NT$175.45 (357.5% above fair value)
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 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.
38GF Score
Get the complete analysis for ROCO:3234
5-Year Yield-on-Cost % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
ROCO:3234 has been successfully added to your 
