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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.
Taiwan Advanced NanotechROCO:6797 59 WACC % is 3.7% as of Jul. 14, 2026, which is 43% below its 10-year median of 6.49. GuruFocus rates ROCO:6797 with a GF Score™ of 59/100 and a GF Value™ of NT$13.40 (Fairly Valued). The stock has 4 warning signs investors should review. Among 866 Medical Devices & Instruments companies, Taiwan Advanced Nanotech ranks better than 86.84% on this metric.
As of today (2026-07-14), Taiwan Advanced Nanotech's weighted average cost of capital is 3.7%%. Taiwan Advanced Nanotech's ROIC % is -39.23% (calculated using TTM income statement data).
Taiwan Advanced Nanotech earns returns that do not match up to its cost of capital. It will destroy value as it grows.
For a comprehensive WACC calculation, please access the WACC Calculator.
Because it costs money to raise capital. A firm that generates higher ROIC % 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, Taiwan Advanced Nanotech's weighted average cost of capital is 3.7%%. Taiwan Advanced Nanotech's ROIC % is -39.23% (calculated using TTM income statement data).
Taiwan Advanced Nanotech earns returns that do not match up to its cost of capital. It will destroy value as it grows.
Be Aware
1. GuruFocus uses book value of debt (D) to do the calculation. It is simplified by adding latest one-year semi-annual average Short-Term Debt & Capital Lease Obligation and Long-Term Debt & Capital Lease Obligation together.
For companies that report quarterly, GuruFocus combines all of the most recent year's quarterly debt data from the beginning of the year to the year-end and calculates the average.
For companies that report semi-annually, GuruFocus combines all of the most recent year's semi-annual debt data from the start of the year to the year-end and calculates the average.
For companies that report annually, GuruFocus combines the beginning and ending annual debt data from the most recent year and then calculates the average.
2. The WACC formula discussed above does not include Preferred Stock. Please adjust if preferred stock is considered.
3. (Expected Return of the Market - Risk-Free Rate of Return) is also called market premium. GuruFocus requires market premium to be 6%.
4. GuruFocus uses the latest TTM Interest Expense divided by the latest one-year semi-annual average debt to get the simplified cost of debt.
* 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.
For the Medical Devices subindustry, Taiwan Advanced Nanotech's WACC %, along with its competitors' market caps and WACC % 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.
Taiwan Advanced Nanotech WACC % vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, Taiwan Advanced Nanotech's WACC % distribution charts can be found below:
* The bar in red indicates where Taiwan Advanced Nanotech's WACC % falls into.
The weighted average cost of capital (WACC) is the rate that a company is expected to pay on average to all its security holders to finance its assets. The WACC is commonly referred to as the firm's cost of capital. Generally speaking, a company's assets are financed by debt and equity. WACC is the average of the costs of these sources of financing, each of which is weighted by its respective use in the given situation. By taking a weighted average, we can see how much interest the company has to pay for every dollar it finances.
WACC
=
E
/
(E + D)
*
Cost of Equity
+
D
/
(E + D)
*
Cost of Debt
*
(1 - Tax Rate)
1. Weights:
Generally speaking, a company's assets are financed by debt and equity. We need to calculate the weight of equity and the weight of debt.
The market value of equity (E) is also called "Market Cap". As of today, Taiwan Advanced Nanotech's market capitalization (E) is NT$396.845 Mil.
The market value of debt is typically difficult to calculate, therefore, GuruFocus uses book value of debt (D) to do the calculation. It is simplified by adding the latest one-year semi-annual average Short-Term Debt & Capital Lease Obligation and Long-Term Debt & Capital Lease Obligation together. As of Dec. 2025, Taiwan Advanced Nanotech's latest one-year semi-annual average Book Value of Debt (D) is NT$359.306 Mil.
a) weight of equity = E / (E + D) = 396.845 / (396.845 + 359.306) = 0.5248
b) weight of debt = D / (E + D) = 359.306 / (396.845 + 359.306) = 0.4752
2. Cost of Equity:
GuruFocus uses Capital Asset Pricing Model (CAPM) to calculate the required rate of return. The formula is:
Cost of Equity = Risk-Free Rate of Return + Beta of Asset * (Expected Return of the Market - Risk-Free Rate of Return)
a) GuruFocus uses 10-Year Treasury Constant Maturity Rate as the risk-free rate. It is updated daily. The current risk-free rate is 4.587%. Please go to Economic Indicators page for more information. Please note that we use the 10-Year Treasury Constant Maturity Rate of the country/region where the company is headquartered. If the data for that country/region is not available, then we will use the 10-Year Treasury Constant Maturity Rate of the United States as default.
b) Beta is the sensitivity of the expected excess asset returns to the expected excess market returns. Taiwan Advanced Nanotech's beta is 0.1599.
c) (Expected Return of the Market - Risk-Free Rate of Return) is also called market premium. GuruFocus requires market premium to be 6%.
Cost of Equity = 4.587% + 0.1599 * 6% = 5.5464%
3. Cost of Debt:
GuruFocus uses latest TTM Interest Expense divided by the latest one-year semi-annual average debt to get the simplified cost of debt.
As of Dec. 2025, Taiwan Advanced Nanotech's interest expense (positive number) was NT$6.004 Mil. Its total Book Value of Debt (D) is NT$359.306 Mil.
Cost of Debt = 6.004 / 359.306 = 1.671%.
4. Multiply by one minus TTM Tax Rate:
GuruFocus uses the most recent TTM Tax Expense divided by the most recent TTM Pre-Tax Income to calculate the tax rate. The calculated TTM tax rate is limited to between 0% and 100%. If the calculated tax rate is higher than 100%, it is set to 100%. If the calculated tax rate is less than 0%, it is set to 0%.
The latest calculated TTM Tax Rate = 0 / -226.608 = 0%.
* 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.
Taiwan Advanced Nanotech (ROCO:6797) has a WACC % of 3.7% as of Jul. 14, 2026. The weighted average cost of capital (WACC) is the average rate a company pays to finance assets. View historical data on Taiwan Advanced Nanotech and its competitors. This is 43% below median its historical median of 6.49. Over the past decade, Taiwan Advanced Nanotech's WACC % has ranged from 0.68 to 7.90. According to the industry distribution chart, Taiwan Advanced Nanotech ranks #114 out of 866 companies in the Medical Devices & Instruments industry, placing it in the top 13.2%.
Is Taiwan Advanced Nanotech's WACC % too high?
Taiwan Advanced Nanotech's current WACC % of 3.7% is 43% below median its 10-year median of 6.49. Over the past 10 years, this metric has ranged from a low of 0.68 to a high of 7.90. The Medical Devices & Instruments industry median WACC % is 9.14. Taiwan Advanced Nanotech's value of 3.7% is 59.5% below this industry median. Based on the distribution chart, Taiwan Advanced Nanotech ranks #114 out of 866 companies in the Medical Devices & Instruments industry, which is in the top quartile — a strong position relative to peers. Overall, Taiwan Advanced Nanotech has a GF Score™ of 59/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Taiwan Advanced Nanotech's WACC % compare to ABT and SYK?
According to the Medical Devices & Instruments industry distribution chart, Taiwan Advanced Nanotech ranks #114 out of 866 companies for WACC %. This places Taiwan Advanced Nanotech in the top 13% of its industry — outperforming the majority of peers. The industry median WACC % is 9.14. Taiwan Advanced Nanotech's value of 3.7% is 59.5% below this benchmark. Historically, Taiwan Advanced Nanotech's own WACC % has ranged from 0.68 to 7.90 over the past decade. While the company's 10-year median is 6.49 vs. the industry median of 9.14, Taiwan Advanced Nanotech 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 WACC % for a Medical Devices & Instruments company?
The median WACC % among Medical Devices & Instruments companies is 9.14, based on 866 companies in the industry. Companies in the top quartile (top 25%) have a WACC % significantly above this median, while those in the bottom quartile fall well below. However, WACC % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Taiwan Advanced Nanotech's current WACC % of 3.7% is 59.5% 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 WACC % mean?
A high WACC % can signal that a stock is expensive relative to its fundamentals. The weighted average cost of capital (WACC) is the average rate a company pays to finance assets. View historical data on Taiwan Advanced Nanotech and its competitors. For the Medical Devices & Instruments industry, the median WACC % is 9.14 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Taiwan Advanced Nanotech's current WACC % is 3.7%, which is 43% below median its own 10-year median of 6.49. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Taiwan Advanced Nanotech stock overvalued right now?
Based on GuruFocus' analysis, Taiwan Advanced Nanotech (ROCO:6797) is currently considered Fairly Valued. The stock's GF Value™ is NT$13.40, compared to a current price of NT$13.20 — trading 1.5% below its estimated fair value. The current WACC % is 3.7%, which is 43% below median its 10-year median of 6.49 and 59.5% below the Medical Devices & Instruments industry median of 9.14. Taiwan Advanced Nanotech's overall GF Score™ is 59/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is WACC % calculated?
WACC % is calculated from a company's financial statements. For Taiwan Advanced Nanotech (ROCO:6797), the current WACC % is 3.7% as of Jul. 14, 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 Taiwan Advanced Nanotech (ROCO:6797) Overvalued in 2026?
Based on GuruFocus' analysis, Taiwan Advanced Nanotech stock appears to be undervalued.
The current stock price of NT$13.20 is trading 1.5% below its estimated GF Value™ of NT$13.40.
GuruFocus considers Taiwan Advanced Nanotech to be Fairly Valued.
Key valuation signals for ROCO:6797:
WACC %: 3.7% (43% below median its 10-year median of 6.49)
GF Value™: NT$13.40 vs. price of NT$13.20 (1.5% below fair value)
Industry Position: 59.5% below the Medical Devices & Instruments median (#114 of 866)
No single metric tells the full story. See the ROCO:6797 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Taiwan Advanced Nanotech Inc is engaged in development and manufacturing of various functional nanoparticles and automated nucleic acid extraction machines and trading related businesses. With expertise in automation, buffer optimization and modification of magnetic beads, it focuses on offering customer convenient and practical solutions to advance research, life science and molecular diagnostics. It offers various products to meet the requirements of customers. The company's products include Automated Extraction Instruments; Reagent Kit; Mag Nanoparticles; and Consumables.
59GF Score
Get the complete analysis for ROCO:6797
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