TacBright Optronics (ROCO:6434) Beneish M-Score: -3.22 (As of Jun. 27, 2026)


ROCO:6434 TacBright Optronics Corp ROCO:6434
40 GF Score
Price NT$18.10
GF Value NT$4.06
Valuation Significantly Overvalued
! 1 Warning Sign
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What is TacBright Optronics Beneish M-Score?

TacBright Optronics ROCO:6434 -5.24% 40 Beneish M-Score is -3.22 as of Jun. 27, 2026. GuruFocus rates ROCO:6434 with a GF Score™ of 40/100 and a GF Value™ of NT$4.06 (Significantly Overvalued). The stock has 1 warning sign investors should review. Among 1,530 Chemicals companies, TacBright Optronics ranks better than 90.59% 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 -3.22 no higher than -1.78, which implies that the company is unlikely to be a manipulator.

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

ROCO:6434' s Beneish M-Score Range Over the Past 10 Years
Min: -5.78   Med: -3.19   Max: -0.29
Current: -3.22

During the past 13 years, the highest Beneish M-Score of TacBright Optronics was -0.29. The lowest was -5.78. And the median was -3.19.


TacBright Optronics Beneish M-Score Historical Data

* Premium members only.

The historical data trend for TacBright Optronics'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.

TacBright Optronics Beneish M-Score Chart

TacBright Optronics 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 -3.16 -2.49 -3.94 -5.78 -3.22

TacBright Optronics 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 -3.94 0.00 -5.78 0.00 -3.22

ROCO:6434 vs LIN, SHW, ECL: Beneish M-Score Comparison

For the Specialty Chemicals subindustry, TacBright Optronics'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.


TacBright Optronics Beneish M-Score vs Chemicals Industry

For the Chemicals industry and Basic Materials sector, TacBright Optronics's Beneish M-Score distribution charts can be found below:

* The bar in red indicates where TacBright Optronics's Beneish M-Score falls into.


ROCO:6434
40GF Score
TacBright Optronics Corp ROCO:6434
Beneish M-Score is just one metric. See GF Score™, valuation, warning signs, and more.
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TacBright Optronics 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 TacBright Optronics 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 * 0.8522+0.528 * 1.2548+0.404 * 0.4055+0.892 * 0.9355+0.115 * 1.2517
-0.172 * SGAI+4.679 * TATA-0.327 * LVGI
-0.172 * 1.0844+4.679 * -0.095779-0.327 * 1.0238
=-3.22

* 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$253 Mil.
Revenue was NT$1,213 Mil.
Gross Profit was NT$18 Mil.
Total Current Assets was NT$600 Mil.
Total Assets was NT$3,106 Mil.
Property, Plant and Equipment(Net PPE) was NT$2,495 Mil.
Depreciation, Depletion and Amortization(DDA) was NT$271 Mil.
Selling, General, & Admin. Expense(SGA) was NT$100 Mil.
Total Current Liabilities was NT$830 Mil.
Long-Term Debt & Capital Lease Obligation was NT$229 Mil.
Net Income was NT$-115 Mil.
Gross Profit was NT$0 Mil.
Cash Flow from Operations was NT$182 Mil.
Total Receivables was NT$317 Mil.
Revenue was NT$1,297 Mil.
Gross Profit was NT$24 Mil.
Total Current Assets was NT$659 Mil.
Total Assets was NT$3,357 Mil.
Property, Plant and Equipment(Net PPE) was NT$2,668 Mil.
Depreciation, Depletion and Amortization(DDA) was NT$373 Mil.
Selling, General, & Admin. Expense(SGA) was NT$99 Mil.
Total Current Liabilities was NT$817 Mil.
Long-Term Debt & Capital Lease Obligation was NT$301 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)
=(252.727 / 1213.152) / (316.999 / 1296.768)
=0.208323 / 0.244453
=0.8522

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)
=(24.095 / 1296.768) / (17.964 / 1213.152)
=0.018581 / 0.014808
=1.2548

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 - (599.518 + 2495.126) / 3105.886) / (1 - (659.327 + 2667.655) / 3356.954)
=0.00362 / 0.008928
=0.4055

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
=1213.152 / 1296.768
=0.9355

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))
=(373.109 / (373.109 + 2667.655)) / (271.183 / (271.183 + 2495.126))
=0.122702 / 0.098031
=1.2517

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)
=(100.36 / 1213.152) / (98.927 / 1296.768)
=0.082727 / 0.076287
=1.0844

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)
=((229.091 + 829.826) / 3105.886) / ((301.258 + 816.637) / 3356.954)
=0.340939 / 0.333009
=1.0238

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
=(-115.455 - 0 - 182.025) / 3105.886
=-0.095779

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.

TacBright Optronics has a M-score of -3.22 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 -3.22 mean?
TacBright Optronics (ROCO:6434) has a Beneish M-Score of -3.22 as of Jun. 27, 2026. The Beneish M-score measures the likelihood of earnings manipulation. View historical data on TacBright Optronics and its competitors. According to the industry distribution chart, TacBright Optronics ranks #144 out of 1530 companies in the Chemicals industry, placing it in the top 9.4%.
Is TacBright Optronics' Beneish M-Score too high?
TacBright Optronics' current Beneish M-Score is -3.22. Based on the distribution chart, TacBright Optronics ranks #144 out of 1530 companies in the Chemicals industry, which is in the top quartile — a strong position relative to peers. Overall, TacBright Optronics has a GF Score™ of 40/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does TacBright Optronics' Beneish M-Score compare to LIN and SHW?
According to the Chemicals industry distribution chart, TacBright Optronics ranks #144 out of 1530 companies for Beneish M-Score. This places TacBright Optronics in the top 9% 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 Chemicals company?
A good Beneish M-Score depends on the Chemicals 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 TacBright Optronics and its competitors. TacBright Optronics's current Beneish M-Score is -3.22. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is TacBright Optronics stock overvalued right now?
Based on GuruFocus' analysis, TacBright Optronics (ROCO:6434) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$4.06, compared to a current price of NT$18.10 — trading 345.8% above its estimated fair value. The current Beneish M-Score is -3.22. TacBright Optronics' overall GF Score™ is 40/100 with 1 warning sign 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 TacBright Optronics (ROCO:6434), the current Beneish M-Score is -3.22 as of Jun. 27, 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 TacBright Optronics (ROCO:6434) Overvalued in 2026?

Based on GuruFocus' analysis, TacBright Optronics stock appears to be overvalued. The current stock price of NT$18.10 is trading 345.8% above its estimated GF Value™ of NT$4.06. GuruFocus considers TacBright Optronics to be Significantly Overvalued.

Key valuation signals for ROCO:6434:

  • Beneish M-Score: -3.22
  • GF Value™: NT$4.06 vs. price of NT$18.10 (345.8% above fair value)
  • GF Score™: 40/100 with 1 warning sign

No single metric tells the full story. See the ROCO:6434 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


TacBright Optronics Business Description

Address No. 3, Kebei 2nd Road, Hsinchu Science Industrial Park, Miaoli County, ZhunanTownship, Hsinchu, TWN
TacBright Optronics Corp is engaged in synthetic resin and plastic manufacturing, surface treatment, wholesale and retail of chemical raw materials, and electronics. Wholesale and retail of sub-materials and manufacturing of precision chemical materials.
40GF Score

Get the complete analysis for ROCO:6434

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

NT$18.10
Price
NT$4.06
GF Value