Erayak Power Solution GroupRAYA -6.77%51 Piotroski F-Score is 4 as of Jun. 25, 2026, which is 20% below its 10-year median of 5.00. GuruFocus rates RAYA with a GF Score™ of 51/100 and a GF Value™ of $2,190.03 (Possible Value Trap). The stock has 8 warning signs investors should review. Among 2,979 Industrial Products companies, Erayak Power Solution Group ranks worse than 65.12% 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
Erayak Power Solution Group has an F-score of 4 indicating the company's financial situation is typical for a stable company.
The historical rank and industry rank for Erayak Power Solution Group's Piotroski F-Score or its related term are showing as below:
RAYA'
s Piotroski F-Score Range Over the Past 10 Years
Min: 2 Med: 5 Max: 6
Current: 4
During the past 7 years, the highest Piotroski F-Score of Erayak Power Solution Group was 6. The lowest was 2. And the median was 5.
Erayak Power Solution Group (NAS:RAYA) 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.
Erayak Power Solution Group Piotroski F-Score Related Terms
Erayak Power Solution Group 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.
Erayak Power Solution Group Piotroski F-Score Chart
RAYA vs TOGI, LNKS, PWDY: Piotroski F-Score Comparison
For the Electrical Equipment & Parts subindustry, Erayak Power Solution Group'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.
Erayak Power Solution Group Piotroski F-Score vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Erayak Power Solution Group's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where Erayak Power Solution Group'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.
Erayak Power Solution Group's current Net Income (TTM) was -1.39.
==> 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.
Erayak Power Solution Group's current Cash Flow from Operations (TTM) was -3.17.
==> 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.
Erayak Power Solution Group's return on assets of this year was -0.03019573. Erayak Power Solution Group's return on assets of last year was -0.03162817.
==> This year is higher. ==> Score 1.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
Erayak Power Solution Group's gearing of this year was 0.06463723. Erayak Power Solution Group's gearing of last year was 0.09623945.
==> 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
Erayak Power Solution Group's current ratio of this year was 2.08751745. Erayak Power Solution Group's current ratio of last year was 2.13016609.
==> Last year's current ratio is higher ==> Score 0.
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.
Erayak Power Solution Group's number of shares in issue this year was 0.005. Erayak Power Solution Group's number of shares in issue last year was 0.011.
==> There is smaller number of shares in issue this year, or the same. ==> Score 1.
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.
Erayak Power Solution Group's gross margin of this year was 0.21316998. Erayak Power Solution Group's gross margin of last year was 0.13174917.
==> 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
Erayak Power Solution Group's asset turnover of this year was 0.49649165. Erayak Power Solution Group's asset turnover of last year was 0.85872184.
==> Last year's asset turnover is higher ==> Score 0.
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
+
0
+
1
+
0
+
1
+
1
+
0
=
4
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Erayak Power Solution Group has an F-score of 4 indicating the company's financial situation is typical for a stable company.
Erayak Power Solution Group (RAYA) has a Piotroski F-Score of 4 as of Jun. 25, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Erayak Power Solution Group and its competitors. This is 20% below median its historical median of 5.00. Over the past decade, Erayak Power Solution Group's Piotroski F-Score has ranged from 2.00 to 6.00. According to the industry distribution chart, Erayak Power Solution Group ranks #1940 out of 2979 companies in the Industrial Products industry, placing it in the top 65.1%.
Is Erayak Power Solution Group's Piotroski F-Score too high?
Erayak Power Solution Group's current Piotroski F-Score of 4 is 20% below median its 10-year median of 5.00. Over the past 10 years, this metric has ranged from a low of 2.00 to a high of 6.00. The Industrial Products industry median Piotroski F-Score is 5.00. Erayak Power Solution Group's value of 4 is 20% below this industry median. Based on the distribution chart, Erayak Power Solution Group ranks #1940 out of 2979 companies in the Industrial Products industry, which is below the industry midpoint. Overall, Erayak Power Solution Group has a GF Score™ of 51/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Erayak Power Solution Group's Piotroski F-Score compare to TOGI and LNKS?
According to the Industrial Products industry distribution chart, Erayak Power Solution Group ranks #1940 out of 2979 companies for Piotroski F-Score. This places Erayak Power Solution Group in the lower half of its industry. The industry median Piotroski F-Score is 5.00. Erayak Power Solution Group's value of 4 is 20% below this benchmark. Historically, Erayak Power Solution Group's own Piotroski F-Score has ranged from 2.00 to 6.00 over the past decade. While the company's 10-year median is 5.00 vs. the industry median of 5.00, Erayak Power Solution Group 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 Piotroski F-Score for an Industrial Products company?
The median Piotroski F-Score among Industrial Products companies is 5.00, based on 2,979 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. Erayak Power Solution Group's current Piotroski F-Score of 4 is 20% 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 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 Erayak Power Solution Group and its competitors. For the Industrial Products 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. Erayak Power Solution Group's current Piotroski F-Score is 4, which is 20% below median its own 10-year median of 5.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Erayak Power Solution Group stock overvalued right now?
Based on GuruFocus' analysis, Erayak Power Solution Group (RAYA) is currently considered Possible Value Trap. The stock's GF Value™ is $2,190.03, compared to a current price of $2.56 — trading 99.9% below its estimated fair value. The current Piotroski F-Score is 4, which is 20% below median its 10-year median of 5.00 and 20% below the Industrial Products industry median of 5.00. Erayak Power Solution Group's overall GF Score™ is 51/100 with 8 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 Erayak Power Solution Group (RAYA), the current Piotroski F-Score is 4 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 Erayak Power Solution Group (RAYA) Overvalued in 2026?
Based on GuruFocus' analysis, Erayak Power Solution Group stock appears to be undervalued.
The current stock price of $2.56 is trading 99.9% below its estimated GF Value™ of $2,190.03.
GuruFocus considers Erayak Power Solution Group to be Possible Value Trap.
Key valuation signals for RAYA:
Piotroski F-Score: 4 (20% below median its 10-year median of 5.00)
GF Value™: $2,190.03 vs. price of $2.56 (99.9% below fair value)
Industry Position: 20% below the Industrial Products median (#1940 of 2979)
No single metric tells the full story. See the RAYA stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Erayak Power Solution Group Inc is engaged in the manufacturing, research and development (R&D), and wholesale and retail of power solution products. The group focuses on manufacturing new energy storage and inverter devices. Its product portfolio includes sine wave and off-grid inverters, inverters and gasoline generators, battery and smart chargers, and custom-designed products. The products are used principally in agricultural and industrial vehicles, recreational vehicles (RVs), electrical appliances, and outdoor living products. The company generates the majority of its revenue from Inverters. The company generates revenue from five main markets, which are China, Poland, Mexico, the U.K., and Portugal. It derives maximum revenue from China.
51GF Score
Get the complete analysis for RAYA
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
RAYA has been successfully added to your 
