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Tianneng Power InternationalTIANF 70 ROC (Joel Greenblatt) % is 13.50% as of Dec. 2025, which is 57% below its 10-year median of 31.40. GuruFocus rates TIANF with a GF Score™ of 70/100 and a GF Value™ of $0.63 (Fairly Valued). The stock has 6 warning signs investors should review. Among 1,332 Vehicles & Parts companies, Tianneng Power International ranks better than 56.01% 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. Tianneng Power International's annualized ROC (Joel Greenblatt) % for the quarter that ended in Dec. 2025 was 13.50%.
The historical rank and industry rank for Tianneng Power International's ROC (Joel Greenblatt) % or its related term are showing as below:
TIANF'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: 14.34 Med: 31.4 Max: 53.61
Current: 14.34
During the past 13 years, Tianneng Power International's highest ROC (Joel Greenblatt) % was 53.61%. The lowest was 14.34%. And the median was 31.40%.
TIANF's ROC (Joel Greenblatt) % is ranked better than 56.01% of 1332
companies
in the Vehicles & Parts industry
Industry Median: 12.02
vs TIANF: 14.34
Tianneng Power International (OTCPK:TIANF) 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.
Tianneng Power International ROC (Joel Greenblatt) % Chart
TIANF vs ORLY, AZO: ROC (Joel Greenblatt) % Comparison
For the Auto Parts subindustry, Tianneng Power International'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.
Tianneng Power International ROC (Joel Greenblatt) % vs Vehicles & Parts Industry
For the Vehicles & Parts industry and Consumer Cyclical sector, Tianneng Power International's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Tianneng Power International's ROC (Joel Greenblatt) % falls into.
Tianneng Power International 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 two times the semi-annual (Dec. 2025) 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 13.50% mean?
Tianneng Power International (TIANF) has a ROC (Joel Greenblatt) % of 13.50% as of Dec. 2025. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Tianneng Power International and its competitors. This is 57% below median its historical median of 31.40. Over the past decade, Tianneng Power International's ROC (Joel Greenblatt) % has ranged from 14.34 to 53.61. According to the industry distribution chart, Tianneng Power International ranks #586 out of 1332 companies in the Vehicles & Parts industry, placing it in the top 44%.
Is Tianneng Power International's ROC (Joel Greenblatt) % too high?
Tianneng Power International's current ROC (Joel Greenblatt) % of 13.50% is 57% below median its 10-year median of 31.40. Over the past 10 years, this metric has ranged from a low of 14.34 to a high of 53.61. The Vehicles & Parts industry median ROC (Joel Greenblatt) % is 12.02. Tianneng Power International's value of 13.50% is 12.3% above this industry median. Based on the distribution chart, Tianneng Power International ranks #586 out of 1332 companies in the Vehicles & Parts industry, which is above the industry midpoint. Overall, Tianneng Power International has a GF Score™ of 70/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Tianneng Power International's ROC (Joel Greenblatt) % compare to ORLY and AZO?
According to the Vehicles & Parts industry distribution chart, Tianneng Power International ranks #586 out of 1332 companies for ROC (Joel Greenblatt) %. This puts Tianneng Power International in the upper half of its industry. The industry median ROC (Joel Greenblatt) % is 12.02. Tianneng Power International's value of 13.50% is 12.3% above this benchmark. Historically, Tianneng Power International's own ROC (Joel Greenblatt) % has ranged from 14.34 to 53.61 over the past decade. While the company's 10-year median is 31.40 vs. the industry median of 12.02, Tianneng Power International 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 Vehicles & Parts company?
The median ROC (Joel Greenblatt) % among Vehicles & Parts companies is 12.02, based on 1,332 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. Tianneng Power International's current ROC (Joel Greenblatt) % of 13.50% is 12.3% 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 Tianneng Power International and its competitors. For the Vehicles & Parts industry, the median ROC (Joel Greenblatt) % is 12.02 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Tianneng Power International's current ROC (Joel Greenblatt) % is 13.50%, which is 57% below median its own 10-year median of 31.40. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tianneng Power International stock overvalued right now?
Based on GuruFocus' analysis, Tianneng Power International (TIANF) is currently considered Fairly Valued. The stock's GF Value™ is $0.63, compared to a current price of $0.60 — trading 5.3% below its estimated fair value. The current ROC (Joel Greenblatt) % is 13.50%, which is 57% below median its 10-year median of 31.40 and 12.3% above the Vehicles & Parts industry median of 12.02. Tianneng Power International's overall GF Score™ is 70/100 with 6 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 Tianneng Power International (TIANF), the current ROC (Joel Greenblatt) % is 13.50% as of Dec. 2025. 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 Tianneng Power International (TIANF) Overvalued in 2026?
Based on GuruFocus' analysis, Tianneng Power International stock appears to be undervalued.
The current stock price of $0.60 is trading 5.3% below its estimated GF Value™ of $0.63.
GuruFocus considers Tianneng Power International to be Fairly Valued.
Key valuation signals for TIANF:
ROC (Joel Greenblatt) %: 13.50% (57% below median its 10-year median of 31.40)
GF Value™: $0.63 vs. price of $0.60 (5.3% below fair value)
Industry Position: 12.3% above the Vehicles & Parts median (#586 of 1332)
No single metric tells the full story. See the TIANF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Tianneng Power International Ltd is engaged in the manufacturing and sale of lead-acid battery products, lithium-ion battery products and recycled materials and trading of materials. It manufactures High-tech eco friendly battery, new energy batteries, and green and renewable materials. The company operates in two segments: Manufacturing business and Trading. The Manufacturing business segment generates the majority of the revenue. Geographically it operates in the PRC.
70GF Score
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