Ascent Solar TechnologiesASTI -6.69%30 Piotroski F-Score is 6 as of Jun. 25, 2026, which is 50% above its 10-year median of 4.00. 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 989 Semiconductors companies, Ascent Solar Technologies ranks better than 80.18% on this metric.
The zones of discrimination were as such:
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Ascent Solar Technologies has an F-score of 6 indicating the company's financial situation is typical for a stable company.
The historical rank and industry rank for Ascent Solar Technologies's Piotroski F-Score or its related term are showing as below:
ASTI'
s Piotroski F-Score Range Over the Past 10 Years
Min: 1 Med: 4 Max: 6
Current: 6
During the past 13 years, the highest Piotroski F-Score of Ascent Solar Technologies was 6. The lowest was 1. And the median was 4.
Ascent Solar Technologies (NAS:ASTI) Piotroski F-Score Explanation
The developer of the system is Joseph D. Piotroski is relatively unknown accounting professor who shuns publicity and rarely gives interviews.
He graduated from the University of Illinois with a B.S. in accounting in 1989, received an M.B.A. from Indiana University in 1994. Five years later, in 1999, after earning a Ph.D. in accounting from the University of Michigan, he became an associate professor of accounting at the University of Chicago.
He wanted to see if he can develop a system (using a simple nine-point scoring system) that can increase the returns of a strategy of investing in low price to book (referred to in the paper as high book to market) value companies.
What he found was something that exceeded his most optimistic expectations.
Buying only those companies that scored highest (8 or 9) on his nine-point scale, or F-Score as he called it, over the 20 year period from 1976 to 1996 led to an average out-performance over the market of 13.4%.
Even more impressive were the results of a strategy of investing in the highest F-Score companies (8 or 9) and shorting companies with the lowest F-Score (0 or 1).
Over the same period from 1976 to 1996 (20 years) this strategy led to an average yearly return of 23%, substantially outperforming the average S&P 500 index return of 15.83% over the same period.
Ascent Solar Technologies Piotroski F-Score Related Terms
Ascent Solar Technologies Piotroski F-Score Historical 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.
ASTI vs PN, SPRU, FTCI: Piotroski F-Score Comparison
For the Solar subindustry, Ascent Solar Technologies's Piotroski F-Score, along with its competitors' market caps and Piotroski F-Score 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 Piotroski F-Score vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Ascent Solar Technologies's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where Ascent Solar Technologies's Piotroski F-Score falls into.
* 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.
*Note: If the latest quarterly/semi-annual/annual total assets data is 0, then we will use previous quarterly/semi-annual/annual data for all the items in the balance sheet.
Profitability
Question 1. Return on Assets (ROA)
Net income before extraordinary items for the year divided by Total Assets at the beginning of the year.
Score 1 if positive, 0 if negative.
Ascent Solar Technologies's current Net Income (TTM) was -8.34.
==> Negative ==> Score 0.
Question 2. Cash Flow Return on Assets (CFROA)
Net cash flow from operating activities (operating cash flow) divided by Total Assets at the beginning of the year.
Score 1 if positive, 0 if negative.
Ascent Solar Technologies's current Cash Flow from Operations (TTM) was -7.38.
==> Negative ==> Score 0.
Question 3. Change in Return on Assets
Compare this year's return on assets (1) to last year's return on assets.
Ascent Solar Technologies's return on assets of this year was -1.35023489. Ascent Solar Technologies's return on assets of last year was -1.65904074.
==> This year is higher. ==> Score 1.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
Ascent Solar Technologies's gearing of this year was 0.0669344. Ascent Solar Technologies's gearing of last year was 0.17911145.
==> This year is lower or equal to last year. ==> Score 1.
Question 6. Change in Working Capital (Liquidity)
Compare this year's current ratio (current assets divided by current liabilities) to last year's current ratio.
Score 1 if this year's current ratio is higher, 0 if it's lower
Ascent Solar Technologies's current ratio of this year was 6.98584513. Ascent Solar Technologies's current ratio of last year was 1.2478185.
==> This year's current ratio is higher. ==> Score 1.
Question 7. Change in Shares in Issue
Compare the number of shares in issue this year, to the number in issue last year.
Score 0 if there is larger number of shares in issue this year, 1 otherwise.
Ascent Solar Technologies's number of shares in issue this year was 7.969. Ascent Solar Technologies's number of shares in issue last year was 1.487.
==> There is larger number of shares in issue this year. ==> Score 0.
Efficiency
Question 8. Change in Gross Margin
Compare this year's gross margin (Gross Profit divided by sales) to last year's.
Score 1 if this year's gross margin is higher, 0 if it's lower.
Ascent Solar Technologies's gross margin of this year was -1.14035088. Ascent Solar Technologies's gross margin of last year was -2.09433962.
==> This year's gross margin is higher. ==> Score 1.
Question 9. Change in asset turnover
Compare this year's asset turnover (total sales for the year divided by total assets at the beginning of the year) to last year's asset turnover ratio.
Score 1 if this year's asset turnover ratio is higher, 0 if it's lower
Ascent Solar Technologies's asset turnover of this year was 0.01846752. Ascent Solar Technologies's asset turnover of last year was 0.01063616.
==> This year's asset turnover is higher. ==> Score 1.
Evaluation
Piotroski F-Score
=
Que. 1
+
Que. 2
+
Que. 3
+
Que. 4
+
Que. 5
+
Que. 6
+
Que. 7
+
Que. 8
+
Que. 9
=
0
+
0
+
1
+
1
+
1
+
1
+
0
+
1
+
1
=
6
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Ascent Solar Technologies has an F-score of 6 indicating the company's financial situation is typical for a stable company.
Ascent Solar Technologies (ASTI) has a Piotroski F-Score of 6 as of Jun. 25, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Ascent Solar Technologies and its competitors. This is 50% above median its historical median of 4.00. Over the past decade, Ascent Solar Technologies' Piotroski F-Score has ranged from 1.00 to 6.00. According to the industry distribution chart, Ascent Solar Technologies ranks #196 out of 989 companies in the Semiconductors industry, placing it in the top 19.8%.
Is Ascent Solar Technologies' Piotroski F-Score too high?
Ascent Solar Technologies' current Piotroski F-Score of 6 is 50% above median its 10-year median of 4.00. Over the past 10 years, this metric has ranged from a low of 1.00 to a high of 6.00. The Semiconductors industry median Piotroski F-Score is 5.00. Ascent Solar Technologies' value of 6 is 20% above this industry median. Based on the distribution chart, Ascent Solar Technologies ranks #196 out of 989 companies in the Semiconductors industry, which is in the top quartile — a strong position 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' Piotroski F-Score compare to PN and SPRU?
According to the Semiconductors industry distribution chart, Ascent Solar Technologies ranks #196 out of 989 companies for Piotroski F-Score. This places Ascent Solar Technologies in the top 20% of its industry — outperforming the majority of peers. The industry median Piotroski F-Score is 5.00. Ascent Solar Technologies' value of 6 is 20% above this benchmark. Historically, Ascent Solar Technologies' own Piotroski F-Score has ranged from 1.00 to 6.00 over the past decade. While the company's 10-year median is 4.00 vs. the industry median of 5.00, 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 Piotroski F-Score for a Semiconductors company?
The median Piotroski F-Score among Semiconductors companies is 5.00, based on 989 companies in the industry. Companies in the top quartile (top 25%) have a Piotroski F-Score significantly above this median, while those in the bottom quartile fall well below. However, Piotroski F-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Ascent Solar Technologies's current Piotroski F-Score of 6 is 20% 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 Piotroski F-Score mean?
A high Piotroski F-Score can signal that a stock is expensive relative to its fundamentals. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Ascent Solar Technologies and its competitors. For the Semiconductors industry, the median Piotroski F-Score is 5.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Ascent Solar Technologies's current Piotroski F-Score is 6, which is 50% above median its own 10-year median of 4.00. 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 Piotroski F-Score is 6, which is 50% above median its 10-year median of 4.00 and 20% above the Semiconductors industry median of 5.00. 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 Piotroski F-Score calculated?
Piotroski F-Score is calculated from a company's financial statements. For Ascent Solar Technologies (ASTI), the current Piotroski F-Score is 6 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:
Piotroski F-Score: 6 (50% above median its 10-year median of 4.00)
GF Value™: $0.25 vs. price of $5.03 (1912% above fair value)
Industry Position: 20% above the Semiconductors median (#196 of 989)
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.
30GF Score
Get the complete analysis for ASTI
Piotroski F-Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
ASTI has been successfully added to your 
