Aeontek Co (ROCO:1599) ROC %: -11.48% (As of Dec. 2025)


ROCO:1599 Aeontek Co Ltd ROCO:1599
63 GF Score
Price NT$23.30
GF Value NT$24.80
Valuation Fairly Valued
! 7 Warning Signs
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What is Aeontek Co ROC %?

Aeontek Co ROCO:1599 63 ROC % is -11.48% as of Dec. 2025. GuruFocus rates ROCO:1599 with a GF Score™ of 63/100 and a GF Value™ of NT$24.80 (Fairly Valued). The stock has 7 warning signs investors should review.

ROC % measures how well a company generates cash flow relative to the capital it has invested in its business. It is also called ROIC %. Aeontek Co's annualized return on capital (ROC %) for the quarter that ended in Dec. 2025 was -11.48%.

As of today (2026-06-29), Aeontek Co's WACC % is 3.76%. Aeontek Co's ROC % is -6.67% (calculated using TTM income statement data). Aeontek Co earns returns that do not match up to its cost of capital. It will destroy value as it grows.


Aeontek Co  (ROCO:1599) ROC % Explanation

ROC % measures how well a company generates cash flow relative to the capital it has invested in its business. It is also called ROIC %. The reason book values of debt and equity are used is because the book values are the capital the company received when issuing the debt or receiving the equity investments.

There are four key components to this definition. The first is the use of operating income or EBIT rather than net income in the numerator. The second is the tax adjustment to this operating income or EBIT, computed as a hypothetical tax based on an effective or marginal tax rate. The third is the use of book values for invested capital, rather than market values. The final is the timing difference; the capital invested is from the end of the prior year whereas the operating income or EBIT is the current year's number.

Why is ROC % important?

Because it costs money to raise capital. A firm that generates higher returns on investment than it costs the company to raise the capital needed for that investment is earning excess returns. A firm that expects to continue generating positive excess returns on new investments in the future will see its value increase as growth increases, whereas a firm that earns returns that do not match up to its cost of capital will destroy value as it grows.

As of today, Aeontek Co's WACC % is 3.76%. Aeontek Co's ROC % is -6.67% (calculated using TTM income statement data). Aeontek Co earns returns that do not match up to its cost of capital. It will destroy value as it grows.


Be Aware

Like ROE % and ROA %, ROC % is calculated with only 12 months of data. Fluctuations in the company's earnings or business cycles can affect the ratio drastically. It is important to look at the ratio from a long term perspective.


Aeontek Co ROC % Related Terms


Aeontek Co ROC % Historical Data

* Premium members only.

The historical data trend for Aeontek Co's ROC % 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.

Aeontek Co ROC % Chart

Aeontek Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
ROC %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 24.96 14.75 -5.49 -1.01 -6.76

Aeontek Co Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
ROC % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only -12.04 -3.01 -3.73 -6.22 -11.48
ROCO:1599
63GF Score
Aeontek Co Ltd ROCO:1599
ROC % is just one metric. See GF Score™, valuation, warning signs, and more.
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Aeontek Co ROC % Calculation

Aeontek Co's annualized Return on Capital (ROC %) for the fiscal year that ended in Dec. 2025 is calculated as:

ROC % (A: Dec. 2025 )
=NOPAT/Average Invested Capital
=Operating Income * ( 1 - Tax Rate % )/( (Invested Capital (A: Dec. 2024 ) + Invested Capital (A: Dec. 2025 ))/ count )
=-166.74 * ( 1 - 24.3% )/( (1860.331 + 1875.457)/ 2 )
=-126.22218/1867.894
=-6.76 %

where

Invested Capital(A: Dec. 2024 )
=Total Assets - Accounts Payable & Accrued Expense - Excess Cash
=Total Assets - Accounts Payable & Accrued Expense - ( Cash, Cash Equivalents, Marketable Securities - max(0, Total Current Liabilities - Total Current Assets+Cash, Cash Equivalents, Marketable Securities))
=2772.728 - 310.088 - ( 602.309 - max(0, 634.272 - 1281.392+602.309))
=1860.331

Invested Capital(A: Dec. 2025 )
=Total Assets - Accounts Payable & Accrued Expense - Excess Cash
=Total Assets - Accounts Payable & Accrued Expense - ( Cash, Cash Equivalents, Marketable Securities - max(0, Total Current Liabilities - Total Current Assets+Cash, Cash Equivalents, Marketable Securities))
=2627.998 - 267.218 - ( 485.323 - max(0, 450.884 - 1156.938+485.323))
=1875.457

Aeontek Co's annualized Return on Capital (ROC %) for the quarter that ended in Dec. 2025 is calculated as:

ROC % (Q: Dec. 2025 )
=NOPAT/Average Invested Capital
=Operating Income * ( 1 - Tax Rate % )/( (Invested Capital (Q: Sep. 2025 ) + Invested Capital (Q: Dec. 2025 ))/ count )
=-346.944 * ( 1 - 35.57% )/( (2017.715 + 1875.457)/ 2 )
=-223.5360192/1946.586
=-11.48 %

where

Invested Capital(Q: Sep. 2025 )
=Total Assets - Accounts Payable & Accrued Expense - Excess Cash
=Total Assets - Accounts Payable & Accrued Expense - ( Cash, Cash Equivalents, Marketable Securities - max(0, Total Current Liabilities - Total Current Assets+Cash, Cash Equivalents, Marketable Securities))
=2802.268 - 359.453 - ( 425.1 - max(0, 717.026 - 1318.823+425.1))
=2017.715

Invested Capital(Q: Dec. 2025 )
=Total Assets - Accounts Payable & Accrued Expense - Excess Cash
=Total Assets - Accounts Payable & Accrued Expense - ( Cash, Cash Equivalents, Marketable Securities - max(0, Total Current Liabilities - Total Current Assets+Cash, Cash Equivalents, Marketable Securities))
=2627.998 - 267.218 - ( 485.323 - max(0, 450.884 - 1156.938+485.323))
=1875.457

Note: The Operating Income data used here is four times the quarterly (Dec. 2025) data. The tax rate is limited to between 0% and 100%.

* 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.

Frequently Asked Questions Learn more about ROC % →
What does a ROC % of -11.48% mean?
Aeontek Co (ROCO:1599) has a ROC % of -11.48% as of Dec. 2025. Return on capital is the ratio of current-period net income to average two-period capital. View historical data on Aeontek Co and its competitors.
Is Aeontek Co's ROC % too high?
Aeontek Co's current ROC % is -11.48%. Overall, Aeontek Co has a GF Score™ of 63/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Aeontek Co's ROC % compare to TSLA and GM?
Aeontek Co's ROC % of -11.48% can be compared against companies in the Vehicles & Parts industry. The industry median ROC % is 5.09. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good ROC % for a Vehicles & Parts company?
The median ROC % among Vehicles & Parts companies is 5.09, based on 1,315 companies in the industry. Companies in the top quartile (top 25%) have a ROC % significantly above this median, while those in the bottom quartile fall well below. However, ROC % 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 ROC % mean?
A high ROC % can signal that a stock is expensive relative to its fundamentals. Return on capital is the ratio of current-period net income to average two-period capital. View historical data on Aeontek Co and its competitors. For the Vehicles & Parts industry, the median ROC % is 5.09 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Aeontek Co's current ROC % is -11.48%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Aeontek Co stock overvalued right now?
Based on GuruFocus' analysis, Aeontek Co (ROCO:1599) is currently considered Fairly Valued. The stock's GF Value™ is NT$24.80, compared to a current price of NT$23.30 — trading 6% below its estimated fair value. The current ROC % is -11.48%. Aeontek Co's overall GF Score™ is 63/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROC % calculated?
ROC % is calculated from a company's financial statements. For Aeontek Co (ROCO:1599), the current ROC % is -11.48% 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 Aeontek Co (ROCO:1599) Overvalued in 2026?

Based on GuruFocus' analysis, Aeontek Co stock appears to be undervalued. The current stock price of NT$23.30 is trading 6% below its estimated GF Value™ of NT$24.80. GuruFocus considers Aeontek Co to be Fairly Valued.

Key valuation signals for ROCO:1599:

  • ROC %: -11.48%
  • GF Value™: NT$24.80 vs. price of NT$23.30 (6% below fair value)
  • GF Score™: 63/100 with 7 warning signs

No single metric tells the full story. See the ROCO:1599 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Aeontek Co Business Description

Address No. 41, Nanchou, Shanshang District, Tainan City, TWN, 74342
Aeontek Co Ltd is mainly engaged in motorcycle and parts manufacturing, export manufacturing, motorcycle equipment manufacturing, motorcycle wholesale, and vehicles and parts wholesale of other transportation (all-terrain vehicles). The company generates revenue from ATVs, motorcycles, electric vehicles, parts, and others. It operates through two segments: the Vehicle Segment and Investment Segment, with the Vehicle Segment generating maximum revenue. The company generates maximum revenue from Taiwan.
63GF Score

Get the complete analysis for ROCO:1599

ROC % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$23.30
Price
NT$24.80
GF Value