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.
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. Zhejiang Rongtai Electric Material Co's annualized ROC (Joel Greenblatt) % for the quarter that ended in Jun. 2026 was 33.10%.
SHSE:603119'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: 20.65 Med: 34.37 Max: 47.01
Current: 36.83
During the past 7 years, Zhejiang Rongtai Electric Material Co's highest ROC (Joel Greenblatt) % was 47.01%. The lowest was 20.65%. And the median was 34.37%.
SHSE:603119's ROC (Joel Greenblatt) % is ranked better than 80.01% of 2491
companies
in the Hardware industry
Industry Median: 11.61
vs SHSE:603119: 36.83
Zhejiang Rongtai Electric Material Co (SHSE:603119) 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.
* 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.
Zhejiang Rongtai Electric Material Co ROC (Joel Greenblatt) % Chart
SHSE:603119 vs APH, GLW, TEL: ROC (Joel Greenblatt) % Comparison
For the Electronic Components subindustry, Zhejiang Rongtai Electric Material Co'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.
Zhejiang Rongtai Electric Material Co ROC (Joel Greenblatt) % vs Hardware Industry
For the Hardware industry and Technology sector, Zhejiang Rongtai Electric Material Co's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Zhejiang Rongtai Electric Material Co's ROC (Joel Greenblatt) % falls into.
Zhejiang Rongtai Electric Material Co ROC (Joel Greenblatt) % Calculation
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 (Jun. 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 33.10% mean?
Zhejiang Rongtai Electric Material Co (SHSE:603119) has a ROC (Joel Greenblatt) % of 33.10% as of Jun. 2026. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Zhejiang Rongtai Electric Material Co and its competitors. This is near median its historical median of 34.37. Over the past decade, Zhejiang Rongtai Electric Material Co's ROC (Joel Greenblatt) % has ranged from 20.65 to 47.01. According to the industry distribution chart, Zhejiang Rongtai Electric Material Co ranks #498 out of 2491 companies in the Hardware industry, placing it in the top 20%.
Is Zhejiang Rongtai Electric Material Co's ROC (Joel Greenblatt) % too high?
Zhejiang Rongtai Electric Material Co's current ROC (Joel Greenblatt) % of 33.10% is near median its 10-year median of 34.37. Over the past 10 years, this metric has ranged from a low of 20.65 to a high of 47.01. The Hardware industry median ROC (Joel Greenblatt) % is 11.61. Zhejiang Rongtai Electric Material Co's value of 33.10% is 185.1% above this industry median. Based on the distribution chart, Zhejiang Rongtai Electric Material Co ranks #498 out of 2491 companies in the Hardware industry, which is in the top quartile — a strong position relative to peers. Overall, Zhejiang Rongtai Electric Material Co has a GF Score™ of 87/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Zhejiang Rongtai Electric Material Co's ROC (Joel Greenblatt) % compare to APH and GLW?
According to the Hardware industry distribution chart, Zhejiang Rongtai Electric Material Co ranks #498 out of 2491 companies for ROC (Joel Greenblatt) %. This places Zhejiang Rongtai Electric Material Co in the top 20% of its industry — outperforming the majority of peers. The industry median ROC (Joel Greenblatt) % is 11.61. Zhejiang Rongtai Electric Material Co's value of 33.10% is 185.1% above this benchmark. Historically, Zhejiang Rongtai Electric Material Co's own ROC (Joel Greenblatt) % has ranged from 20.65 to 47.01 over the past decade. While the company's 10-year median is 34.37 vs. the industry median of 11.61, Zhejiang Rongtai Electric Material 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 ROC (Joel Greenblatt) % for a Hardware company?
The median ROC (Joel Greenblatt) % among Hardware companies is 11.61, based on 2,491 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. Zhejiang Rongtai Electric Material Co's current ROC (Joel Greenblatt) % of 33.10% is 185.1% 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 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 Zhejiang Rongtai Electric Material Co and its competitors. For the Hardware industry, the median ROC (Joel Greenblatt) % is 11.61 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Zhejiang Rongtai Electric Material Co's current ROC (Joel Greenblatt) % is 33.10%, which is near median its own 10-year median of 34.37. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Zhejiang Rongtai Electric Material Co stock overvalued right now?
Based on GuruFocus' analysis, Zhejiang Rongtai Electric Material Co (SHSE:603119) is currently considered Significantly Overvalued. The stock's GF Value™ is ¥38.46, compared to a current price of ¥53.05 — trading 37.9% above its estimated fair value. The current ROC (Joel Greenblatt) % is 33.10%, which is near median its 10-year median of 34.37 and 185.1% above the Hardware industry median of 11.61. Zhejiang Rongtai Electric Material Co's overall GF Score™ is 87/100 with 2 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 Zhejiang Rongtai Electric Material Co (SHSE:603119), the current ROC (Joel Greenblatt) % is 33.10% 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 Zhejiang Rongtai Electric Material Co (SHSE:603119) Overvalued in 2026?
Based on GuruFocus' analysis, Zhejiang Rongtai Electric Material Co stock appears to be overvalued.
The current stock price of ¥53.05 is trading 37.9% above its estimated GF Value™ of ¥38.46.
GuruFocus considers Zhejiang Rongtai Electric Material Co to be Significantly Overvalued.
Key valuation signals for SHSE:603119:
ROC (Joel Greenblatt) %: 33.10% (near median its 10-year median of 34.37)
GF Value™: ¥38.46 vs. price of ¥53.05 (37.9% above fair value)
Industry Position: 185.1% above the Hardware median (#498 of 2491)
No single metric tells the full story. See the SHSE:603119 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Zhejiang Rongtai Electric Material Co Ltd is a high-tech enterprise specializing in the research, development, production, and sales of new composite materials of high temperature resistant insulating mica with multiple plants in Zhejiang and Hunan, and is one of the global market leaders in mica products. Its main products include mica rigid materials, flexible materials, heat generating components, thermal management mica safety components and various mica derivative products. its mica products are widely used in new energy vehicles, rail transportation, aerospace and military ships, special wires and cables, intelligent household appliances and other related industrial fields, and provide customers with professional one-stop system solutions for electrical and thermal insulation.
87GF Score
Get the complete analysis for SHSE:603119
ROC (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
SHSE:603119 has been successfully added to your 
