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Wafer WorksROCO:6182 +9.57%52 ROC (Joel Greenblatt) % is 0.96% as of Mar. 2026, which is 88% below its 10-year median of 8.03. GuruFocus rates ROCO:6182 with a GF Score™ of 52/100 and a GF Value™ of NT$33.43 (Significantly Overvalued). The stock has 8 warning signs investors should review. Among 1,029 Semiconductors companies, Wafer Works ranks worse than 62.78% on this metric.
Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits). He defines ROC (Joel Greenblatt) % as EBIT divided by the total of Property, Plant and Equipment and net working capital. Wafer Works's annualized ROC (Joel Greenblatt) % for the quarter that ended in Mar. 2026 was 0.96%.
The historical rank and industry rank for Wafer Works's ROC (Joel Greenblatt) % or its related term are showing as below:
ROCO:6182'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: -13.53 Med: 8.03 Max: 25.64
Current: 2.44
During the past 13 years, Wafer Works's highest ROC (Joel Greenblatt) % was 25.64%. The lowest was -13.53%. And the median was 8.03%.
ROCO:6182's ROC (Joel Greenblatt) % is ranked worse than 62.78% of 1029
companies
in the Semiconductors industry
Industry Median: 8.65
vs ROCO:6182: 2.44
Wafer Works's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was -25.00% per year.
Wafer Works (ROCO:6182) ROC (Joel Greenblatt) % Explanation
The way Joel Greenblatt defines Return on Capital is a more accurate measure of how efficiently the company generates returns onthe capital actually invested in the business. EBIT is used instead of net income because the tax and interest payment may be affected by factors other than the core business operation. Intangible assets are not included in the calculation because they don't need to be replaced.
Wafer Works ROC (Joel Greenblatt) % Historical Data
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The historical data trend for Wafer Works's ROC (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.
ROCO:6182 vs AMAT, LRCX, KLAC: ROC (Joel Greenblatt) % Comparison
For the Semiconductor Equipment & Materials subindustry, Wafer Works's ROC (Joel Greenblatt) %, along with its competitors' market caps and ROC (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.
Wafer Works ROC (Joel Greenblatt) % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Wafer Works's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Wafer Works's ROC (Joel Greenblatt) % falls into.
Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits) . He defines Return on Capital as follows:
EBIT stands for Earnings Before Interest and Taxes.
Fixed Assets are also known as non-current assets. They include the Property, Plant and Equipment that the firm needs in its operation.
GuruFocus calculates net working capital as: (Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Deferred Revenue + Other Current Liabilities). We're trying to account for OPERATING assets and liabilities (part of daily business) when calculating working capital. Cash and marketable securities are considered NON-OPERATING assets and are not included in calculation. We will also back out all interest bearing debt, short term debt and the portion of long term debt that is due in the current period from the current liabilities. This debt will be considered when computing cost of capital and it would be inappropriate to count it twice.
Note:
The EBIT data used here is four times the quarterly (Mar. 2026) EBIT data.
* 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.
What does a ROC (Joel Greenblatt) % of 0.96% mean?
Wafer Works (ROCO:6182) has a ROC (Joel Greenblatt) % of 0.96% as of Mar. 2026. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Wafer Works and its competitors. This is 88% below median its historical median of 8.03. According to the industry distribution chart, Wafer Works ranks #646 out of 1029 companies in the Semiconductors industry, placing it in the top 62.8%.
Is Wafer Works' ROC (Joel Greenblatt) % too high?
Wafer Works' current ROC (Joel Greenblatt) % of 0.96% is 88% below median its 10-year median of 8.03. The Semiconductors industry median ROC (Joel Greenblatt) % is 8.65. Wafer Works' value of 0.96% is 88.9% below this industry median. Based on the distribution chart, Wafer Works ranks #646 out of 1029 companies in the Semiconductors industry, which is below the industry midpoint. Overall, Wafer Works has a GF Score™ of 52/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Wafer Works' ROC (Joel Greenblatt) % compare to AMAT and LRCX?
According to the Semiconductors industry distribution chart, Wafer Works ranks #646 out of 1029 companies for ROC (Joel Greenblatt) %. This places Wafer Works in the lower half of its industry. The industry median ROC (Joel Greenblatt) % is 8.65. Wafer Works' value of 0.96% is 88.9% below this benchmark. While the company's 10-year median is 8.03 vs. the industry median of 8.65, Wafer Works has consistently been below 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 ROC (Joel Greenblatt) % for a Semiconductors company?
The median ROC (Joel Greenblatt) % among Semiconductors companies is 8.65, based on 1,029 companies in the industry. Companies in the top quartile (top 25%) have a ROC (Joel Greenblatt) % significantly above this median, while those in the bottom quartile fall well below. However, ROC (Joel Greenblatt) % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Wafer Works's current ROC (Joel Greenblatt) % of 0.96% is 88.9% below 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 ROC (Joel Greenblatt) % mean?
A high ROC (Joel Greenblatt) % can signal that a stock is expensive relative to its fundamentals. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Wafer Works and its competitors. For the Semiconductors industry, the median ROC (Joel Greenblatt) % is 8.65 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Wafer Works's current ROC (Joel Greenblatt) % is 0.96%, which is 88% below median its own 10-year median of 8.03. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Wafer Works stock overvalued right now?
Based on GuruFocus' analysis, Wafer Works (ROCO:6182) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$33.43, compared to a current price of NT$103.00 — trading 208.1% above its estimated fair value. The current ROC (Joel Greenblatt) % is 0.96%, which is 88% below median its 10-year median of 8.03 and 88.9% below the Semiconductors industry median of 8.65. Wafer Works' overall GF Score™ is 52/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROC (Joel Greenblatt) % calculated?
ROC (Joel Greenblatt) % is calculated from a company's financial statements. For Wafer Works (ROCO:6182), the current ROC (Joel Greenblatt) % is 0.96% as of Mar. 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 Wafer Works (ROCO:6182) Overvalued in 2026?
Based on GuruFocus' analysis, Wafer Works stock appears to be overvalued.
The current stock price of NT$103.00 is trading 208.1% above its estimated GF Value™ of NT$33.43.
GuruFocus considers Wafer Works to be Significantly Overvalued.
Key valuation signals for ROCO:6182:
ROC (Joel Greenblatt) %: 0.96% (88% below median its 10-year median of 8.03)
GF Value™: NT$33.43 vs. price of NT$103.00 (208.1% above fair value)
Industry Position: 88.9% below the Semiconductors median (#646 of 1029)
No single metric tells the full story. See the ROCO:6182 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Wafer Works Corp is a Taiwan-based company principally engaged in the R&D, design, manufacturing, and sales of semiconductor materials; the technique consulting business, service business, and trading for the above items. Its customized silicon wafer services are Polished wafers, Leijingjingyuan, SOI wafers, Gallium nitride epitaxial wafers, and Custom wafers. Its geographical segments include Taiwan, China (including Hong Kong), the United States, and Other countries. It generates the majority of its revenue from Taiwan. The Group's revenue is derived from the manufacture and sale of semiconductor wafers.
52GF Score
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