Ascent Solar TechnologiesASTI -6.69%30 WACC % is 21.97% as of Jun. 25, 2026, which is 1% above its 10-year median of 21.68. GuruFocus rates ASTI with a GF Score™ of 30/100 and a GF Value™ of $0.25 (Significantly Overvalued). The stock has 6 warning signs investors should review. Among 1,032 Semiconductors companies, Ascent Solar Technologies ranks worse than 97.48% on this metric.
As of today (2026-06-25), Ascent Solar Technologies's weighted average cost of capital is 21.97%%. Ascent Solar Technologies's ROIC % is -223.26% (calculated using TTM income statement data).
Ascent Solar Technologies 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.
Ascent Solar Technologies (NAS:ASTI) WACC % Explanation
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, Ascent Solar Technologies's weighted average cost of capital is 21.97%%. Ascent Solar Technologies's ROIC % is -223.26% (calculated using TTM income statement data).
Ascent Solar Technologies 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 quarterly 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 quarterly 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 Solar subindustry, Ascent Solar Technologies'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.
Ascent Solar Technologies WACC % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Ascent Solar Technologies's WACC % distribution charts can be found below:
* The bar in red indicates where Ascent Solar Technologies'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, Ascent Solar Technologies's market capitalization (E) is $47.593 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 quarterly average Short-Term Debt & Capital Lease Obligation and Long-Term Debt & Capital Lease Obligation together. As of Mar. 2026, Ascent Solar Technologies's latest one-year quarterly average Book Value of Debt (D) is $1.6104 Mil.
a) weight of equity = E / (E + D) = 47.593 / (47.593 + 1.6104) = 0.9673
b) weight of debt = D / (E + D) = 1.6104 / (47.593 + 1.6104) = 0.0327
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 4.41%. 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. Ascent Solar Technologies's beta is 3.0331.
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 = 4.41% + 3.0331 * 6% = 22.6086%
3. Cost of Debt:
GuruFocus uses latest TTM Interest Expense divided by the latest one-year quarterly average debt to get the simplified cost of debt.
As of Mar. 2026, Ascent Solar Technologies's interest expense (positive number) was $0.048 Mil. Its total Book Value of Debt (D) is $1.6104 Mil.
Cost of Debt = 0.048 / 1.6104 = 2.9806%.
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 / -8.335 = 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.
Ascent Solar Technologies (ASTI) has a WACC % of 21.97% as of Jun. 25, 2026. The weighted average cost of capital (WACC) is the average rate a company pays to finance assets. View historical data on Ascent Solar Technologies and its competitors. This is near median its historical median of 21.68. Over the past decade, Ascent Solar Technologies' WACC % has ranged from 6.25 to 109.88. According to the industry distribution chart, Ascent Solar Technologies ranks #1006 out of 1032 companies in the Semiconductors industry, placing it in the top 97.5%.
Is Ascent Solar Technologies' WACC % too high?
Ascent Solar Technologies' current WACC % of 21.97% is near median its 10-year median of 21.68. Over the past 10 years, this metric has ranged from a low of 6.25 to a high of 109.88. The Semiconductors industry median WACC % is 9.49. Ascent Solar Technologies' value of 21.97% is 131.6% above this industry median. Based on the distribution chart, Ascent Solar Technologies ranks #1006 out of 1032 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, Ascent Solar Technologies has a GF Score™ of 30/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Ascent Solar Technologies' WACC % compare to PN and SPRU?
According to the Semiconductors industry distribution chart, Ascent Solar Technologies ranks #1006 out of 1032 companies for WACC %. This places Ascent Solar Technologies in the lower half of its industry. The industry median WACC % is 9.49. Ascent Solar Technologies' value of 21.97% is 131.6% above this benchmark. Historically, Ascent Solar Technologies' own WACC % has ranged from 6.25 to 109.88 over the past decade. While the company's 10-year median is 21.68 vs. the industry median of 9.49, Ascent Solar Technologies 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 WACC % for a Semiconductors company?
The median WACC % among Semiconductors companies is 9.49, based on 1,032 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. Ascent Solar Technologies's current WACC % of 21.97% is 131.6% 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 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 Ascent Solar Technologies and its competitors. For the Semiconductors industry, the median WACC % is 9.49 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Ascent Solar Technologies's current WACC % is 21.97%, which is near median its own 10-year median of 21.68. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ascent Solar Technologies stock overvalued right now?
Based on GuruFocus' analysis, Ascent Solar Technologies (ASTI) is currently considered Significantly Overvalued. The stock's GF Value™ is $0.25, compared to a current price of $5.03 — trading 1912% above its estimated fair value. The current WACC % is 21.97%, which is near median its 10-year median of 21.68 and 131.6% above the Semiconductors industry median of 9.49. Ascent Solar Technologies' overall GF Score™ is 30/100 with 6 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 Ascent Solar Technologies (ASTI), the current WACC % is 21.97% as of Jun. 25, 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 Ascent Solar Technologies (ASTI) Overvalued in 2026?
Based on GuruFocus' analysis, Ascent Solar Technologies stock appears to be overvalued.
The current stock price of $5.03 is trading 1912% above its estimated GF Value™ of $0.25.
GuruFocus considers Ascent Solar Technologies to be Significantly Overvalued.
Key valuation signals for ASTI:
WACC %: 21.97% (near median its 10-year median of 21.68)
GF Value™: $0.25 vs. price of $5.03 (1912% above fair value)
Industry Position: 131.6% above the Semiconductors median (#1006 of 1032)
No single metric tells the full story. See the ASTI stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Ascent Solar Technologies Inc is a solar technology company that manufactures and sells photovoltaic (PV) solar modules that are flexible, durable, and possess attractive power to weight and power to area performance. Its technology provides renewable power solutions to high-value production and specialty solar markets where traditional rigid solar panels are not suitable, including space power beaming, aerospace, satellites, near earth orbiting vehicles, fixed wing unmanned aerial vehicles (UAV), aquatic, terrestrial, and other weight-sensitive markets with transformational high quality, value added product applications. It operates in single PV segment that sells PV products and engineering services and currently, is selling it in North America.
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