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.
Chang Wah Technology CoROCO:6548 +3.03%74 Earnings Yield (Joel Greenblatt) % is 3.69% as of Jun. 2026, which is 48% below its 10-year median of 7.15. GuruFocus rates ROCO:6548 with a GF Score™ of 74/100 and a GF Value™ of NT$45.62 (Significantly Overvalued). The stock has 2 warning signs investors should review. Among 1,035 Semiconductors companies, Chang Wah Technology Co ranks better than 70.43% on this metric.
Chang Wah Technology Co's Enterprise Value for the quarter that ended in Jun. 2026 was NT$76,985 Mil.
Chang Wah Technology Co's EBIT for the trailing twelve months (TTM) ended in Jun. 2026 was NT$2,838 Mil. Chang Wah Technology Co's Earnings Yield (Joel Greenblatt) for the quarter that ended in Jun. 2026 was 3.69%.
The historical rank and industry rank for Chang Wah Technology Co's Earnings Yield (Joel Greenblatt) % or its related term are showing as below:
ROCO:6548'
s Earnings Yield (Joel Greenblatt) % Range Over the Past 10 Years
Min: 1.04 Med: 7.15 Max: 15.18
Current: 4.14
During the past 13 years, the highest Earnings Yield (Joel Greenblatt) of Chang Wah Technology Co was 15.18%. The lowest was 1.04%. And the median was 7.15%.
ROCO:6548's Earnings Yield (Joel Greenblatt) % is ranked better than 70.43% of 1035
companies
in the Semiconductors industry
Industry Median: 1.75
vs ROCO:6548: 4.14
Joel Greenblatt's definition of earnings yield has the same problems the regular earnings yield does. It does not consider the growth of the company. It only looks at one-year's business operation. For cyclical companies, the earnings yield is usually highest at the peak of the business cycle. But these earnings are rarely sustainable.
A better indicator of the attractiveness of an investment which takes growth into account is the Forward Rate of Return (Yacktman) %. Chang Wah Technology Co's Forward Rate of Return (Yacktman) % for the quarter that ended in Jun. 2026 was 0.33%. The Forward Rate of Return uses the normalized Free Cash Flow of the past five years, and considers growth. The forward rate of return can be thought of as the return that investors buying the stock today can expect from it in the future.
Joel Greenblatt defines the earnings yield using the above equation because it more accurately reflects the company's profitability relative to its stock price. Items like interest payment and tax etc. are not directly related to the company's operational profitability.
Enterprise Value instead of market cap (share price) is used in the calculation because it is the real price stock and bond investors together pay for the company.
Be Aware
Joel Greenblatt's definition of earnings yield has the same problems the regular earnings yield does. It does not consider the growth of the company. It only looks at one-year's business operation. For cyclical companies, the earnings yield is usually highest at the peak of the business cycle. But these earnings are rarely sustainable.
Chang Wah Technology Co Earnings Yield (Joel Greenblatt) % Related Terms
Chang Wah Technology Co Earnings Yield (Joel Greenblatt) % Historical Data
* Premium members only.
The historical data trend for Chang Wah Technology Co's Earnings Yield (Joel Greenblatt) % 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.
Chang Wah Technology Co Earnings Yield (Joel Greenblatt) % Chart
For the Semiconductors subindustry, Chang Wah Technology Co's Earnings Yield (Joel Greenblatt) %, along with its competitors' market caps and Earnings Yield (Joel Greenblatt) % 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.
Chang Wah Technology Co Earnings Yield (Joel Greenblatt) % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Chang Wah Technology Co's Earnings Yield (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Chang Wah Technology Co's Earnings Yield (Joel Greenblatt) % falls into.
Chang Wah Technology Co Earnings Yield (Joel Greenblatt) % Calculation
In his book, The Little That Beat the Market, hedge fund manager Joel Greenblatt defines Earnings Yield as operating income divided by enterprise value.
Chang Wah Technology Cos Earnings Yield (Joel Greenblatt) for the fiscal year that ended in Dec. 2025 is calculated as
Chang Wah Technology Co's EBIT for the trailing twelve months (TTM) ended in Jun. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was NT$2,838 Mil.
What does a Earnings Yield (Joel Greenblatt) % of 3.69% mean?
Chang Wah Technology Co (ROCO:6548) has a Earnings Yield (Joel Greenblatt) % of 3.69% as of Jun. 2026. Joel Greenblatt's earnings yield equals the ratio of earnings before interest and taxes to enterprise value. View historical data on Chang Wah Technology Co and its competitors. This is 48% below median its historical median of 7.15. Over the past decade, Chang Wah Technology Co's Earnings Yield (Joel Greenblatt) % has ranged from 1.04 to 15.18. According to the industry distribution chart, Chang Wah Technology Co ranks #306 out of 1035 companies in the Semiconductors industry, placing it in the top 29.6%.
Is Chang Wah Technology Co's Earnings Yield (Joel Greenblatt) % too high?
Chang Wah Technology Co's current Earnings Yield (Joel Greenblatt) % of 3.69% is 48% below median its 10-year median of 7.15. Over the past 10 years, this metric has ranged from a low of 1.04 to a high of 15.18. The Semiconductors industry median Earnings Yield (Joel Greenblatt) % is 1.75. Chang Wah Technology Co's value of 3.69% is 110.9% above this industry median. Based on the distribution chart, Chang Wah Technology Co ranks #306 out of 1035 companies in the Semiconductors industry, which is above the industry midpoint. Overall, Chang Wah Technology Co has a GF Score™ of 74/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Chang Wah Technology Co's Earnings Yield (Joel Greenblatt) % compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, Chang Wah Technology Co ranks #306 out of 1035 companies for Earnings Yield (Joel Greenblatt) %. This puts Chang Wah Technology Co in the upper half of its industry. The industry median Earnings Yield (Joel Greenblatt) % is 1.75. Chang Wah Technology Co's value of 3.69% is 110.9% above this benchmark. Historically, Chang Wah Technology Co's own Earnings Yield (Joel Greenblatt) % has ranged from 1.04 to 15.18 over the past decade. While the company's 10-year median is 7.15 vs. the industry median of 1.75, Chang Wah Technology 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 Earnings Yield (Joel Greenblatt) % for a Semiconductors company?
The median Earnings Yield (Joel Greenblatt) % among Semiconductors companies is 1.75, based on 1,035 companies in the industry. Companies in the top quartile (top 25%) have a Earnings Yield (Joel Greenblatt) % significantly above this median, while those in the bottom quartile fall well below. However, Earnings Yield (Joel Greenblatt) % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Chang Wah Technology Co's current Earnings Yield (Joel Greenblatt) % of 3.69% is 110.9% 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 Earnings Yield (Joel Greenblatt) % mean?
A high Earnings Yield (Joel Greenblatt) % can signal that a stock is expensive relative to its fundamentals. Joel Greenblatt's earnings yield equals the ratio of earnings before interest and taxes to enterprise value. View historical data on Chang Wah Technology Co and its competitors. For the Semiconductors industry, the median Earnings Yield (Joel Greenblatt) % is 1.75 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Chang Wah Technology Co's current Earnings Yield (Joel Greenblatt) % is 3.69%, which is 48% below median its own 10-year median of 7.15. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Chang Wah Technology Co stock overvalued right now?
Based on GuruFocus' analysis, Chang Wah Technology Co (ROCO:6548) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$45.62, compared to a current price of NT$73.60 — trading 61.3% above its estimated fair value. The current Earnings Yield (Joel Greenblatt) % is 3.69%, which is 48% below median its 10-year median of 7.15 and 110.9% above the Semiconductors industry median of 1.75. Chang Wah Technology Co's overall GF Score™ is 74/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Earnings Yield (Joel Greenblatt) % calculated?
Earnings Yield (Joel Greenblatt) % is calculated from a company's financial statements. For Chang Wah Technology Co (ROCO:6548), the current Earnings Yield (Joel Greenblatt) % is 3.69% as of Jun. 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 Chang Wah Technology Co (ROCO:6548) Overvalued in 2026?
Based on GuruFocus' analysis, Chang Wah Technology Co stock appears to be overvalued.
The current stock price of NT$73.60 is trading 61.3% above its estimated GF Value™ of NT$45.62.
GuruFocus considers Chang Wah Technology Co to be Significantly Overvalued.
Key valuation signals for ROCO:6548:
Earnings Yield (Joel Greenblatt) %: 3.69% (48% below median its 10-year median of 7.15)
GF Value™: NT$45.62 vs. price of NT$73.60 (61.3% above fair value)
Industry Position: 110.9% above the Semiconductors median (#306 of 1035)
No single metric tells the full story. See the ROCO:6548 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Chang Wah Technology Co Ltd mainly manufactures industrial plastic products and electronics components, and sells electronics components and machinery, and tools. The company focuses on manufacturing semiconductor frames, offering different products such as IC-Pin lead Frame, IC-Leadless lead Frame, IC-Special surface treatment, EMC lead frame, and PreMold lead frame. Along with its subsidiaries, the company operates in the following reportable segments: CWTC, CWTS, SHAP, Shing Zheng Investment, SHEC, SHPC, SHS, MSHE, WSP, and CWES. Maximum revenue is generated from its CWTC segment. Geographically, the group operates in Taiwan, Asia, and other regions.
74GF Score
Get the complete analysis for ROCO:6548
Earnings Yield (Joel Greenblatt) % 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:6548 has been successfully added to your 
