Acon Optics CommunicationsROCO:6820 +3.16%61 Piotroski F-Score is 4 as of Jun. 30, 2026, which is 33% below its 10-year median of 6.00. GuruFocus rates ROCO:6820 with a GF Score™ of 61/100 and a GF Value™ of NT$56.52 (Significantly Overvalued). The stock has 3 warning signs investors should review. Among 2,432 Hardware companies, Acon Optics Communications ranks worse than 62.13% 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
Acon Optics Communications 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 Acon Optics Communications's Piotroski F-Score or its related term are showing as below:
ROCO:6820'
s Piotroski F-Score Range Over the Past 10 Years
Min: 4 Med: 6 Max: 8
Current: 4
During the past 9 years, the highest Piotroski F-Score of Acon Optics Communications was 8. The lowest was 4. And the median was 6.
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.
Acon Optics Communications Piotroski F-Score Related Terms
Acon Optics Communications 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.
ROCO:6820 vs CSCO, CIEN, MSI: Piotroski F-Score Comparison
For the Communication Equipment subindustry, Acon Optics Communications'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.
Acon Optics Communications Piotroski F-Score vs Hardware Industry
For the Hardware industry and Technology sector, Acon Optics Communications's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where Acon Optics Communications'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.
Acon Optics Communications's current Net Income (TTM) was 6.5.
==> Positive ==> Score 1.
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.
Acon Optics Communications's current Cash Flow from Operations (TTM) was 67.7.
==> Positive ==> Score 1.
Question 3. Change in Return on Assets
Compare this year's return on assets (1) to last year's return on assets.
Acon Optics Communications's return on assets of this year was 0.0084712. Acon Optics Communications's return on assets of last year was 0.13281178.
==> Last year is higher ==> Score 0.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
Acon Optics Communications's gearing of this year was 0.02199924. Acon Optics Communications's gearing of last year was 0.02027097.
==> Last year is lower than this year ==> Score 0.
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
Acon Optics Communications's current ratio of this year was 1.40992669. Acon Optics Communications's current ratio of last year was 1.5834265.
==> 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.
Acon Optics Communications's number of shares in issue this year was 22.024. Acon Optics Communications's number of shares in issue last year was 22.089.
==> 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.
Acon Optics Communications's gross margin of this year was 0.27011123. Acon Optics Communications's gross margin of last year was 0.33440606.
==> Last year's gross margin is higher ==> Score 0.
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
Acon Optics Communications's asset turnover of this year was 1.0920801. Acon Optics Communications's asset turnover of last year was 1.23694011.
==> 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
=
1
+
1
+
0
+
1
+
0
+
0
+
1
+
0
+
0
=
4
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Acon Optics Communications has an F-score of 4 indicating the company's financial situation is typical for a stable company.
Acon Optics Communications (ROCO:6820) has a Piotroski F-Score of 4 as of Jun. 30, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Acon Optics Communications and its competitors. This is 33% below median its historical median of 6.00. Over the past decade, Acon Optics Communications' Piotroski F-Score has ranged from 4.00 to 8.00. According to the industry distribution chart, Acon Optics Communications ranks #1511 out of 2432 companies in the Hardware industry, placing it in the top 62.1%.
Is Acon Optics Communications' Piotroski F-Score too high?
Acon Optics Communications' current Piotroski F-Score of 4 is 33% below median its 10-year median of 6.00. Over the past 10 years, this metric has ranged from a low of 4.00 to a high of 8.00. The Hardware industry median Piotroski F-Score is 5.00. Acon Optics Communications' value of 4 is 20% below this industry median. Based on the distribution chart, Acon Optics Communications ranks #1511 out of 2432 companies in the Hardware industry, which is below the industry midpoint. Overall, Acon Optics Communications has a GF Score™ of 61/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Acon Optics Communications' Piotroski F-Score compare to CSCO and CIEN?
According to the Hardware industry distribution chart, Acon Optics Communications ranks #1511 out of 2432 companies for Piotroski F-Score. This places Acon Optics Communications in the lower half of its industry. The industry median Piotroski F-Score is 5.00. Acon Optics Communications' value of 4 is 20% below this benchmark. Historically, Acon Optics Communications' own Piotroski F-Score has ranged from 4.00 to 8.00 over the past decade. While the company's 10-year median is 6.00 vs. the industry median of 5.00, Acon Optics Communications 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 a Hardware company?
The median Piotroski F-Score among Hardware companies is 5.00, based on 2,432 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. Acon Optics Communications'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 Acon Optics Communications and its competitors. For the Hardware 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. Acon Optics Communications's current Piotroski F-Score is 4, which is 33% below median its own 10-year median of 6.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Acon Optics Communications stock overvalued right now?
Based on GuruFocus' analysis, Acon Optics Communications (ROCO:6820) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$56.52, compared to a current price of NT$261.00 — trading 361.8% above its estimated fair value. The current Piotroski F-Score is 4, which is 33% below median its 10-year median of 6.00 and 20% below the Hardware industry median of 5.00. Acon Optics Communications' overall GF Score™ is 61/100 with 3 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 Acon Optics Communications (ROCO:6820), the current Piotroski F-Score is 4 as of Jun. 30, 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 Acon Optics Communications (ROCO:6820) Overvalued in 2026?
Based on GuruFocus' analysis, Acon Optics Communications stock appears to be overvalued.
The current stock price of NT$261.00 is trading 361.8% above its estimated GF Value™ of NT$56.52.
GuruFocus considers Acon Optics Communications to be Significantly Overvalued.
Key valuation signals for ROCO:6820:
Piotroski F-Score: 4 (33% below median its 10-year median of 6.00)
GF Value™: NT$56.52 vs. price of NT$261.00 (361.8% above fair value)
Industry Position: 20% below the Hardware median (#1511 of 2432)
No single metric tells the full story. See the ROCO:6820 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
ROCO:6820 has been successfully added to your 
