Joy Industrial Co (ROCO:4559) Beneish M-Score: -2.93 (As of Jul. 15, 2026)

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ROCO:4559 Joy Industrial Co Ltd ROCO:4559
59 GF Score
Price NT$9.14
GF Value NT$8.15
Valuation Modestly Overvalued
! 8 Warning Signs
View Full Analysis

What is Joy Industrial Co Beneish M-Score?

Joy Industrial Co ROCO:4559 +4.46% 59 Beneish M-Score is -2.93 as of Jul. 15, 2026. GuruFocus rates ROCO:4559 with a GF Score™ of 59/100 and a GF Value™ of NT$8.15 (Modestly Overvalued). The stock has 8 warning signs investors should review. Among 1,274 Vehicles & Parts companies, Joy Industrial Co ranks better than 82.73% 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 -2.93 no higher than -1.78, which implies that the company is unlikely to be a manipulator.

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

ROCO:4559' s Beneish M-Score Range Over the Past 10 Years
Min: -3.19   Med: -2.77   Max: -2.08
Current: -2.93

During the past 13 years, the highest Beneish M-Score of Joy Industrial Co was -2.08. The lowest was -3.19. And the median was -2.77.


Joy Industrial Co Beneish M-Score Historical Data

* Premium members only.

The historical data trend for Joy Industrial 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.

Joy Industrial Co Beneish M-Score Chart

Joy Industrial Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Beneish M-Score
Get a 7-Day Free Trial Premium Member Only Premium Member Only -2.22 -2.73 -2.32 -2.87 -2.93

Joy Industrial Co Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 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 Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only -2.32 0.00 -2.87 0.00 -2.93

ROCO:4559 vs ORLY, AZO: Beneish M-Score Comparison

For the Auto Parts subindustry, Joy Industrial 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.


Joy Industrial Co Beneish M-Score vs Vehicles & Parts Industry

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

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


ROCO:4559
59GF Score
Joy Industrial Co Ltd ROCO:4559
Beneish M-Score is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Joy Industrial 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 Joy Industrial 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 * 1.2204+0.528 * 0.8337+0.404 * 0.8281+0.892 * 0.8044+0.115 * 0.9476
-0.172 * SGAI+4.679 * TATA-0.327 * LVGI
-0.172 * 1.1201+4.679 * -0.062662-0.327 * 1.0075
=-2.93

* 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$243 Mil.
Revenue was NT$1,008 Mil.
Gross Profit was NT$236 Mil.
Total Current Assets was NT$879 Mil.
Total Assets was NT$1,959 Mil.
Property, Plant and Equipment(Net PPE) was NT$1,015 Mil.
Depreciation, Depletion and Amortization(DDA) was NT$69 Mil.
Selling, General, & Admin. Expense(SGA) was NT$170 Mil.
Total Current Liabilities was NT$926 Mil.
Long-Term Debt & Capital Lease Obligation was NT$312 Mil.
Net Income was NT$10 Mil.
Gross Profit was NT$0 Mil.
Cash Flow from Operations was NT$133 Mil.
Total Receivables was NT$248 Mil.
Revenue was NT$1,253 Mil.
Gross Profit was NT$244 Mil.
Total Current Assets was NT$774 Mil.
Total Assets was NT$1,903 Mil.
Property, Plant and Equipment(Net PPE) was NT$1,053 Mil.
Depreciation, Depletion and Amortization(DDA) was NT$67 Mil.
Selling, General, & Admin. Expense(SGA) was NT$189 Mil.
Total Current Liabilities was NT$834 Mil.
Long-Term Debt & Capital Lease Obligation was NT$360 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)
=(243.053 / 1008.175) / (247.566 / 1253.26)
=0.241082 / 0.197538
=1.2204

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)
=(244.168 / 1253.26) / (235.597 / 1008.175)
=0.194826 / 0.233687
=0.8337

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 - (878.758 + 1014.528) / 1958.549) / (1 - (773.634 + 1052.898) / 1903.114)
=0.033322 / 0.04024
=0.8281

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
=1008.175 / 1253.26
=0.8044

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))
=(67.364 / (67.364 + 1052.898)) / (68.744 / (68.744 + 1014.528))
=0.060132 / 0.06346
=0.9476

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)
=(170.254 / 1008.175) / (188.941 / 1253.26)
=0.168873 / 0.15076
=1.1201

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)
=((312.158 + 925.855) / 1958.549) / ((359.886 + 834.132) / 1903.114)
=0.632107 / 0.627402
=1.0075

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
=(10.472 - 0 - 133.199) / 1958.549
=-0.062662

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.

Joy Industrial Co has a M-score of -2.93 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 -2.93 mean?
Joy Industrial Co (ROCO:4559) has a Beneish M-Score of -2.93 as of Jul. 15, 2026. The Beneish M-score measures the likelihood of earnings manipulation. View historical data on Joy Industrial Co and its competitors. According to the industry distribution chart, Joy Industrial Co ranks #220 out of 1274 companies in the Vehicles & Parts industry, placing it in the top 17.3%.
Is Joy Industrial Co's Beneish M-Score too high?
Joy Industrial Co's current Beneish M-Score is -2.93. Based on the distribution chart, Joy Industrial Co ranks #220 out of 1274 companies in the Vehicles & Parts industry, which is in the top quartile — a strong position relative to peers. Overall, Joy Industrial Co has a GF Score™ of 59/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Joy Industrial Co's Beneish M-Score compare to ORLY and AZO?
According to the Vehicles & Parts industry distribution chart, Joy Industrial Co ranks #220 out of 1274 companies for Beneish M-Score. This places Joy Industrial Co in the top 17% of its industry — outperforming the majority of peers. 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 Joy Industrial Co and its competitors. Joy Industrial Co's current Beneish M-Score is -2.93. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Joy Industrial Co stock overvalued right now?
Based on GuruFocus' analysis, Joy Industrial Co (ROCO:4559) is currently considered Modestly Overvalued. The stock's GF Value™ is NT$8.15, compared to a current price of NT$9.14 — trading 12.1% above its estimated fair value. The current Beneish M-Score is -2.93. Joy Industrial Co's overall GF Score™ is 59/100 with 8 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 Joy Industrial Co (ROCO:4559), the current Beneish M-Score is -2.93 as of Jul. 15, 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 Joy Industrial Co (ROCO:4559) Overvalued in 2026?

Based on GuruFocus' analysis, Joy Industrial Co stock appears to be overvalued. The current stock price of NT$9.14 is trading 12.1% above its estimated GF Value™ of NT$8.15. GuruFocus considers Joy Industrial Co to be Modestly Overvalued.

Key valuation signals for ROCO:4559:

  • Beneish M-Score: -2.93
  • GF Value™: NT$8.15 vs. price of NT$9.14 (12.1% above fair value)
  • GF Score™: 59/100 with 8 warning signs

No single metric tells the full story. See the ROCO:4559 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Joy Industrial Co Business Description

Address Chang-Ping Road, No. 9, Lane 462, Sector 4, Daya, Taichung, TWN, 42850
Joy Industrial Co Ltd is engaged in manufacturing, developing, and selling related products for bicycles, and motorcycle parts, as well as operating related businesses. The company's products include hubs and wheelset series. It generates the majority of its revenue in China followed by Taiwan, Europe, and others.
59GF Score

Get the complete analysis for ROCO:4559

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

NT$9.14
Price
NT$8.15
GF Value