Tainet Communication System (ROCO:4905) Beneish M-Score: -2.31 (As of Jun. 29, 2026)


ROCO:4905 Tainet Communication System Corp ROCO:4905
55 GF Score
Price NT$68.40
GF Value NT$276.83
Valuation Possible Value Trap
! 7 Warning Signs
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What is Tainet Communication System Beneish M-Score?

Tainet Communication System ROCO:4905 -0.58% 55 Beneish M-Score is -2.31 as of Jun. 29, 2026. GuruFocus rates ROCO:4905 with a GF Score™ of 55/100 and a GF Value™ of NT$276.83 (Possible Value Trap). The stock has 7 warning signs investors should review. Among 2,408 Hardware companies, Tainet Communication System ranks worse than 62.54% 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 -2.31 no higher than -1.78, which implies that the company is unlikely to be a manipulator.

The historical rank and industry rank for Tainet Communication System's Beneish M-Score or its related term are showing as below:

ROCO:4905' s Beneish M-Score Range Over the Past 10 Years
Min: -5.44   Med: -2.15   Max: 0.98
Current: -2.31

During the past 13 years, the highest Beneish M-Score of Tainet Communication System was 0.98. The lowest was -5.44. And the median was -2.15.


Tainet Communication System Beneish M-Score Historical Data

* Premium members only.

The historical data trend for Tainet Communication System'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.

Tainet Communication System Beneish M-Score Chart

Tainet Communication System 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 -2.12 -1.99 -5.44 0.98 -2.31

Tainet Communication System Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 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 0.98 -1.61 -1.94 -2.06 -2.31

ROCO:4905 vs CSCO, CIEN, MSI: Beneish M-Score Comparison

For the Communication Equipment subindustry, Tainet Communication System'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.


Tainet Communication System Beneish M-Score vs Hardware Industry

For the Hardware industry and Technology sector, Tainet Communication System's Beneish M-Score distribution charts can be found below:

* The bar in red indicates where Tainet Communication System's Beneish M-Score falls into.


ROCO:4905
55GF Score
Tainet Communication System Corp ROCO:4905
Beneish M-Score is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tainet Communication System 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 Tainet Communication System 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 * 0.8716+0.528 * 0.9097+0.404 * 1.065+0.892 * 1.2256+0.115 * 1.5016
-0.172 * SGAI+4.679 * TATA-0.327 * LVGI
-0.172 * 0.9299+4.679 * 0.00573-0.327 * 0.9536
=-2.31

* 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$125.6 Mil.
Revenue was 205.874 + 186.042 + 183.997 + 150.842 = NT$726.8 Mil.
Gross Profit was 52.485 + 45.451 + 39.032 + 50.214 = NT$187.2 Mil.
Total Current Assets was NT$1,672.2 Mil.
Total Assets was NT$4,349.2 Mil.
Property, Plant and Equipment(Net PPE) was NT$459.8 Mil.
Depreciation, Depletion and Amortization(DDA) was NT$40.0 Mil.
Selling, General, & Admin. Expense(SGA) was NT$128.4 Mil.
Total Current Liabilities was NT$1,033.0 Mil.
Long-Term Debt & Capital Lease Obligation was NT$245.6 Mil.
Net Income was 28.681 + 97.003 + -55.544 + 10.545 = NT$80.7 Mil.
Non Operating Income was 0 + 0 + 0 + 0 = NT$0.0 Mil.
Cash Flow from Operations was 6.012 + 47.693 + -86.518 + 88.575 = NT$55.8 Mil.
Total Receivables was NT$117.5 Mil.
Revenue was 171.859 + 156.425 + 142.757 + 121.95 = NT$593.0 Mil.
Gross Profit was 30.018 + 43.553 + 42.881 + 22.49 = NT$138.9 Mil.
Total Current Assets was NT$2,051.9 Mil.
Total Assets was NT$4,405.5 Mil.
Property, Plant and Equipment(Net PPE) was NT$244.7 Mil.
Depreciation, Depletion and Amortization(DDA) was NT$33.4 Mil.
Selling, General, & Admin. Expense(SGA) was NT$112.6 Mil.
Total Current Liabilities was NT$1,211.4 Mil.
Long-Term Debt & Capital Lease Obligation was NT$146.7 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)
=(125.561 / 726.755) / (117.542 / 592.991)
=0.172769 / 0.198219
=0.8716

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)
=(138.942 / 592.991) / (187.182 / 726.755)
=0.234307 / 0.257559
=0.9097

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 - (1672.219 + 459.793) / 4349.235) / (1 - (2051.931 + 244.718) / 4405.506)
=0.509796 / 0.478687
=1.065

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
=726.755 / 592.991
=1.2256

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))
=(33.4 / (33.4 + 244.718)) / (39.969 / (39.969 + 459.793))
=0.120093 / 0.079976
=1.5016

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)
=(128.357 / 726.755) / (112.63 / 592.991)
=0.176617 / 0.189935
=0.9299

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)
=((245.575 + 1032.978) / 4349.235) / ((146.695 + 1211.438) / 4405.506)
=0.293972 / 0.308281
=0.9536

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
=(80.685 - 0 - 55.762) / 4349.235
=0.00573

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.

Tainet Communication System has a M-score of -2.31 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 -2.31 mean?
Tainet Communication System (ROCO:4905) has a Beneish M-Score of -2.31 as of Jun. 29, 2026. The Beneish M-score measures the likelihood of earnings manipulation. View historical data on Tainet Communication System and its competitors. According to the industry distribution chart, Tainet Communication System ranks #1506 out of 2408 companies in the Hardware industry, placing it in the top 62.5%.
Is Tainet Communication System's Beneish M-Score too high?
Tainet Communication System's current Beneish M-Score is -2.31. Based on the distribution chart, Tainet Communication System ranks #1506 out of 2408 companies in the Hardware industry, which is below the industry midpoint. Overall, Tainet Communication System has a GF Score™ of 55/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Tainet Communication System's Beneish M-Score compare to CSCO and CIEN?
According to the Hardware industry distribution chart, Tainet Communication System ranks #1506 out of 2408 companies for Beneish M-Score. This places Tainet Communication System in the lower 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 Hardware company?
A good Beneish M-Score depends on the Hardware 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 Tainet Communication System and its competitors. Tainet Communication System's current Beneish M-Score is -2.31. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tainet Communication System stock overvalued right now?
Based on GuruFocus' analysis, Tainet Communication System (ROCO:4905) is currently considered Possible Value Trap. The stock's GF Value™ is NT$276.83, compared to a current price of NT$68.40 — trading 75.3% below its estimated fair value. The current Beneish M-Score is -2.31. Tainet Communication System's overall GF Score™ is 55/100 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 Tainet Communication System (ROCO:4905), the current Beneish M-Score is -2.31 as of Jun. 29, 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 Tainet Communication System (ROCO:4905) Overvalued in 2026?

Based on GuruFocus' analysis, Tainet Communication System stock appears to be undervalued. The current stock price of NT$68.40 is trading 75.3% below its estimated GF Value™ of NT$276.83. GuruFocus considers Tainet Communication System to be Possible Value Trap.

Key valuation signals for ROCO:4905:

  • Beneish M-Score: -2.31
  • GF Value™: NT$276.83 vs. price of NT$68.40 (75.3% below fair value)
  • GF Score™: 55/100 with 7 warning signs

No single metric tells the full story. See the ROCO:4905 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tainet Communication System Business Description

Address No.108, Ruiguang Road, 3 floor, Huyuan Li, Neihu District, Taipei, TWN, 114
Tainet Communication System Corp is a manufacturer of digital transmission and switching equipment, data terminal equipment, line interface equipment (including telemetry devices), communication and traffic. Manufacturing, processing, trading and installation engineering business of replacement equipment, programmable power supplies, etc.
55GF Score

Get the complete analysis for ROCO:4905

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

NT$68.40
Price
NT$276.83
GF Value