Jet Optoelectronics Co (ROCO:2255) Beneish M-Score: -2.74 (As of Jul. 07, 2026)


ROCO:2255 Jet Optoelectronics Co Ltd ROCO:2255
61 GF Score
Price NT$17.05
GF Value NT$30.22
Valuation Possible Value Trap
! 7 Warning Signs
View Full Analysis

What is Jet Optoelectronics Co Beneish M-Score?

Jet Optoelectronics Co ROCO:2255 -1.16% 61 Beneish M-Score is -2.74 as of Jul. 07, 2026. GuruFocus rates ROCO:2255 with a GF Score™ of 61/100 and a GF Value™ of NT$30.22 (Possible Value Trap). The stock has 7 warning signs investors should review. Among 1,278 Vehicles & Parts companies, Jet Optoelectronics Co ranks better than 69.56% on this metric.

The zones of discrimination for M-Score is as such:

An M-Score of equal or less than -1.78 suggests that the company is unlikely to be a manipulator.
An M-Score of greater than -1.78 signals that the company is likely to be a manipulator.

Good Sign:

Beneish M-Score -2.74 no higher than -1.78, which implies that the company is unlikely to be a manipulator.

The historical rank and industry rank for Jet Optoelectronics Co's Beneish M-Score or its related term are showing as below:

ROCO:2255' s Beneish M-Score Range Over the Past 10 Years
Min: -2.87   Med: -2.23   Max: -1.67
Current: -2.74

During the past 8 years, the highest Beneish M-Score of Jet Optoelectronics Co was -1.67. The lowest was -2.87. And the median was -2.23.


Jet Optoelectronics Co Beneish M-Score Historical Data

* Premium members only.

The historical data trend for Jet Optoelectronics Co's Beneish M-Score can be seen below:

* 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.

Jet Optoelectronics Co Beneish M-Score Chart

Jet Optoelectronics Co Annual Data
Trend Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Beneish M-Score
Get a 7-Day Free Trial -1.67 -2.87 -2.26 -2.19 -2.74

Jet Optoelectronics Co Semi-Annual Data
Dec18 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Beneish M-Score Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only -2.26 0.00 -2.19 0.00 -2.74

ROCO:2255 vs ORLY, AZO: Beneish M-Score Comparison

For the Auto Parts subindustry, Jet Optoelectronics Co's Beneish M-Score, along with its competitors' market caps and Beneish M-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.


Jet Optoelectronics Co Beneish M-Score vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, Jet Optoelectronics Co's Beneish M-Score distribution charts can be found below:

* The bar in red indicates where Jet Optoelectronics Co's Beneish M-Score falls into.


ROCO:2255
61GF Score
Jet Optoelectronics Co Ltd ROCO:2255
Beneish M-Score is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Jet Optoelectronics Co Beneish M-Score Calculation

The M-score was created by Professor Messod Beneish. Instead of measuring the bankruptcy risk (Altman Z-Score) or business trend (Piotroski F-Score), M-score can be used to detect the risk of earnings manipulation. This is the original research paper on M-score.

The M-Score Variables:

The M-score of Jet Optoelectronics Co for today is based on a combination of the following eight different indices:

M=-4.84+0.92 * DSRI+0.528 * GMI+0.404 * AQI+0.892 * SGI+0.115 * DEPI
=-4.84+0.92 * 0.6422+0.528 * 1.2947+0.404 * 1.6964+0.892 * 1.1433+0.115 * 0.8977
-0.172 * SGAI+4.679 * TATA-0.327 * LVGI
-0.172 * 0.9104+4.679 * -0.104264-0.327 * 1.0468
=-2.74

* 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.

This Year (Dec25) TTM:Last Year (Dec24) TTM:
Total Receivables was NT$157 Mil.
Revenue was NT$2,236 Mil.
Gross Profit was NT$282 Mil.
Total Current Assets was NT$1,446 Mil.
Total Assets was NT$2,345 Mil.
Property, Plant and Equipment(Net PPE) was NT$831 Mil.
Depreciation, Depletion and Amortization(DDA) was NT$158 Mil.
Selling, General, & Admin. Expense(SGA) was NT$309 Mil.
Total Current Liabilities was NT$1,164 Mil.
Long-Term Debt & Capital Lease Obligation was NT$266 Mil.
Net Income was NT$-235 Mil.
Gross Profit was NT$0 Mil.
Cash Flow from Operations was NT$10 Mil.
Total Receivables was NT$214 Mil.
Revenue was NT$1,956 Mil.
Gross Profit was NT$319 Mil.
Total Current Assets was NT$1,941 Mil.
Total Assets was NT$2,898 Mil.
Property, Plant and Equipment(Net PPE) was NT$908 Mil.
Depreciation, Depletion and Amortization(DDA) was NT$152 Mil.
Selling, General, & Admin. Expense(SGA) was NT$297 Mil.
Total Current Liabilities was NT$1,374 Mil.
Long-Term Debt & Capital Lease Obligation was NT$315 Mil.




1. DSRI = Days Sales in Receivables Index

Measured as the ratio of Revenue in Total Receivables in year t to year t-1.

A large increase in DSR could be indicative of revenue inflation.

DSRI=(Receivables_t / Revenue_t) / (Receivables_t-1 / Revenue_t-1)
=(157.235 / 2235.752) / (214.157 / 1955.508)
=0.070328 / 0.109515
=0.6422

2. GMI = Gross Margin Index

Measured as the ratio of gross margin in year t-1 to gross margin in year t.

Gross margin has deteriorated when this index is above 1. A firm with poorer prospects is more likely to manipulate earnings.

GMI=GrossMargin_t-1 / GrossMargin_t
=(GrossProfit_t-1 / Revenue_t-1) / (GrossProfit_t / Revenue_t)
=(319.45 / 1955.508) / (282.104 / 2235.752)
=0.163359 / 0.126179
=1.2947

3. AQI = Asset Quality Index

AQI is the ratio of asset quality in year t to year t-1.

Asset quality is measured as the ratio of non-current assets other than Property, Plant and Equipment to Total Assets.

AQI=(1 - (CurrentAssets_t + PPE_t) / TotalAssets_t) / (1 - (CurrentAssets_t-1 + PPE_t-1) / TotalAssets_t-1)
=(1 - (1445.955 + 830.924) / 2344.973) / (1 - (1941.079 + 907.696) / 2898.386)
=0.029038 / 0.017117
=1.6964

4. SGI = Sales Growth Index

Ratio of Revenue in year t to sales in year t-1.

Sales growth is not itself a measure of manipulation. However, growth companies are likely to find themselves under pressure to manipulate in order to keep up appearances.

SGI=Sales_t / Sales_t-1
=Revenue_t / Revenue_t-1
=2235.752 / 1955.508
=1.1433

5. DEPI = Depreciation Index

Measured as the ratio of the rate of Depreciation, Depletion and Amortization in year t-1 to the corresponding rate in year t.

DEPI greater than 1 indicates that assets are being depreciated at a slower rate. This suggests that the firm might be revising useful asset life assumptions upwards, or adopting a new method that is income friendly.

DEPI=(Depreciation_t-1 / (Depreciaton_t-1 + PPE_t-1)) / (Depreciation_t / (Depreciaton_t + PPE_t))
=(152.003 / (152.003 + 907.696)) / (158.023 / (158.023 + 830.924))
=0.14344 / 0.159789
=0.8977

Note: If the Depreciation, Depletion and Amortization data is not available, we assume that the depreciation rate is constant and set the Depreciation Index to 1.

6. SGAI = Sales, General and Administrative expenses Index

The ratio of Selling, General, & Admin. Expense(SGA) to Sales in year t relative to year t-1.

SGA expenses index > 1 means that the company is becoming less efficient in generate sales.

SGAI=(SGA_t / Sales_t) / (SGA_t-1 /Sales_t-1)
=(309.39 / 2235.752) / (297.234 / 1955.508)
=0.138383 / 0.151998
=0.9104

7. LVGI = Leverage Index

The ratio of total debt to Total Assets in year t relative to yeat t-1.

An LVGI > 1 indicates an increase in leverage

LVGI=((LTD_t + CurrentLiabilities_t) / TotalAssets_t) / ((LTD_t-1 + CurrentLiabilities_t-1) / TotalAssets_t-1)
=((266.441 + 1164.41) / 2344.973) / ((315.227 + 1374.201) / 2898.386)
=0.610178 / 0.582886
=1.0468

8. TATA = Total Accruals to Total Assets

Total accruals calculated as the change in working capital accounts other than cash less depreciation.

TATA=(IncomefromContinuingOperations_t - CashFlowsfromOperations_t) / TotalAssets_t
=(NetIncome_t - NonOperatingIncome_t - CashFlowsfromOperations_t) / TotalAssets_t
=(-234.664 - 0 - 9.833) / 2344.973
=-0.104264

An M-Score of equal or less than -1.78 suggests that the company is unlikely to be a manipulator. An M-Score of greater than -1.78 signals that the company is likely to be a manipulator.

Jet Optoelectronics Co has a M-score of -2.74 suggests that the company is unlikely to be a manipulator.

Frequently Asked Questions Learn more about Beneish M-Score →
What does a Beneish M-Score of -2.74 mean?
Jet Optoelectronics Co (ROCO:2255) has a Beneish M-Score of -2.74 as of Jul. 07, 2026. The Beneish M-score measures the likelihood of earnings manipulation. View historical data on Jet Optoelectronics Co and its competitors. According to the industry distribution chart, Jet Optoelectronics Co ranks #389 out of 1278 companies in the Vehicles & Parts industry, placing it in the top 30.4%.
Is Jet Optoelectronics Co's Beneish M-Score too high?
Jet Optoelectronics Co's current Beneish M-Score is -2.74. Based on the distribution chart, Jet Optoelectronics Co ranks #389 out of 1278 companies in the Vehicles & Parts industry, which is above the industry midpoint. Overall, Jet Optoelectronics Co has a GF Score™ of 61/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Jet Optoelectronics Co's Beneish M-Score compare to ORLY and AZO?
According to the Vehicles & Parts industry distribution chart, Jet Optoelectronics Co ranks #389 out of 1278 companies for Beneish M-Score. This puts Jet Optoelectronics Co in the upper half of its industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Beneish M-Score for a Vehicles & Parts company?
A good Beneish M-Score depends on the Vehicles & Parts industry context. However, Beneish M-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Beneish M-Score mean?
A high Beneish M-Score can signal that a stock is expensive relative to its fundamentals. The Beneish M-score measures the likelihood of earnings manipulation. View historical data on Jet Optoelectronics Co and its competitors. Jet Optoelectronics Co's current Beneish M-Score is -2.74. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Jet Optoelectronics Co stock overvalued right now?
Based on GuruFocus' analysis, Jet Optoelectronics Co (ROCO:2255) is currently considered Possible Value Trap. The stock's GF Value™ is NT$30.22, compared to a current price of NT$17.05 — trading 43.6% below its estimated fair value. The current Beneish M-Score is -2.74. Jet Optoelectronics Co's overall GF Score™ is 61/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Beneish M-Score calculated?
Beneish M-Score is calculated from a company's financial statements. For Jet Optoelectronics Co (ROCO:2255), the current Beneish M-Score is -2.74 as of Jul. 07, 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 Jet Optoelectronics Co (ROCO:2255) Overvalued in 2026?

Based on GuruFocus' analysis, Jet Optoelectronics Co stock appears to be undervalued. The current stock price of NT$17.05 is trading 43.6% below its estimated GF Value™ of NT$30.22. GuruFocus considers Jet Optoelectronics Co to be Possible Value Trap.

Key valuation signals for ROCO:2255:

  • Beneish M-Score: -2.74
  • GF Value™: NT$30.22 vs. price of NT$17.05 (43.6% below fair value)
  • GF Score™: 61/100 with 7 warning signs

No single metric tells the full story. See the ROCO:2255 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Jet Optoelectronics Co Business Description

Address No. 300, Yangguang Street, 7th Floor-2, Neihu District, Taipei, TWN, 11491
Jet Optoelectronics Co Ltd is engaged in the design, manufacture, and sales of high-value-added automotive multimedia audio-visual and human-machine interface systems, as well as the wholesale of automobile and motorcycle parts and equipment.
61GF Score

Get the complete analysis for ROCO:2255

Beneish M-Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$17.05
Price
NT$30.22
GF Value