Fulltech Fiber Glass (ROCO:1815) Beneish M-Score: -2.34 (As of Jul. 08, 2026)


ROCO:1815 Fulltech Fiber Glass Corp ROCO:1815
59 GF Score
Price NT$96.50
GF Value NT$35.94
Valuation Significantly Overvalued
! 1 Warning Sign
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What is Fulltech Fiber Glass Beneish M-Score?

Fulltech Fiber Glass ROCO:1815 -3.02% 59 Beneish M-Score is -2.34 as of Jul. 08, 2026. GuruFocus rates ROCO:1815 with a GF Score™ of 59/100 and a GF Value™ of NT$35.94 (Significantly Overvalued). The stock has 1 warning sign investors should review. Among 2,405 Hardware companies, Fulltech Fiber Glass ranks worse than 60.37% 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 -2.34 no higher than -1.78, which implies that the company is unlikely to be a manipulator.

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

ROCO:1815' s Beneish M-Score Range Over the Past 10 Years
Min: -28.24   Med: -2.59   Max: -2.34
Current: -2.34

During the past 13 years, the highest Beneish M-Score of Fulltech Fiber Glass was -2.34. The lowest was -28.24. And the median was -2.59.


Fulltech Fiber Glass Beneish M-Score Historical Data

* Premium members only.

The historical data trend for Fulltech Fiber Glass'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.

Fulltech Fiber Glass Beneish M-Score Chart

Fulltech Fiber Glass 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 -2.54 -3.05 -28.24 -2.46 -2.34

Fulltech Fiber Glass 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 -2.46 -2.41 -2.65 -2.49 -2.34

ROCO:1815 vs APH, GLW: Beneish M-Score Comparison

For the Electronic Components subindustry, Fulltech Fiber Glass'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.


Fulltech Fiber Glass Beneish M-Score vs Hardware Industry

For the Hardware industry and Technology sector, Fulltech Fiber Glass's Beneish M-Score distribution charts can be found below:

* The bar in red indicates where Fulltech Fiber Glass's Beneish M-Score falls into.


ROCO:1815
59GF Score
Fulltech Fiber Glass Corp ROCO:1815
Beneish M-Score is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Fulltech Fiber Glass 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 Fulltech Fiber Glass 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 * 1.0204+0.528 * 0.5244+0.404 * 0.6175+0.892 * 1.4069+0.115 * 0.92
-0.172 * SGAI+4.679 * TATA-0.327 * LVGI
-0.172 * 0.8896+4.679 * 0.008773-0.327 * 0.6508
=-2.34

* 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$2,158 Mil.
Revenue was 1637.092 + 1532.654 + 1422.418 + 1382.589 = NT$5,975 Mil.
Gross Profit was 474.956 + 411.79 + 349.14 + 411.033 = NT$1,647 Mil.
Total Current Assets was NT$6,651 Mil.
Total Assets was NT$18,446 Mil.
Property, Plant and Equipment(Net PPE) was NT$11,124 Mil.
Depreciation, Depletion and Amortization(DDA) was NT$928 Mil.
Selling, General, & Admin. Expense(SGA) was NT$596 Mil.
Total Current Liabilities was NT$2,399 Mil.
Long-Term Debt & Capital Lease Obligation was NT$3,400 Mil.
Net Income was 435.859 + 282.942 + -33.585 + 171.325 = NT$857 Mil.
Non Operating Income was 0 + 0 + 0 + 0 = NT$0 Mil.
Cash Flow from Operations was 282.614 + 187.289 + 207.204 + 17.607 = NT$695 Mil.
Total Receivables was NT$1,503 Mil.
Revenue was 1286.885 + 1117.918 + 1079.029 + 762.871 = NT$4,247 Mil.
Gross Profit was 300.72 + 197.635 + 117.16 + -1.715 = NT$614 Mil.
Total Current Assets was NT$4,854 Mil.
Total Assets was NT$15,144 Mil.
Property, Plant and Equipment(Net PPE) was NT$9,397 Mil.
Depreciation, Depletion and Amortization(DDA) was NT$716 Mil.
Selling, General, & Admin. Expense(SGA) was NT$476 Mil.
Total Current Liabilities was NT$1,933 Mil.
Long-Term Debt & Capital Lease Obligation was NT$5,382 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)
=(2157.69 / 5974.753) / (1502.93 / 4246.703)
=0.361135 / 0.353905
=1.0204

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)
=(613.8 / 4246.703) / (1646.919 / 5974.753)
=0.144536 / 0.275646
=0.5244

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 - (6650.606 + 11124.002) / 18445.939) / (1 - (4854.087 + 9397.422) / 15144.1)
=0.036395 / 0.05894
=0.6175

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
=5974.753 / 4246.703
=1.4069

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))
=(716.275 / (716.275 + 9397.422)) / (927.765 / (927.765 + 11124.002))
=0.070822 / 0.076982
=0.92

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)
=(595.566 / 5974.753) / (475.82 / 4246.703)
=0.09968 / 0.112045
=0.8896

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)
=((3399.585 + 2399.258) / 18445.939) / ((5382.39 + 1932.874) / 15144.1)
=0.31437 / 0.483044
=0.6508

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
=(856.541 - 0 - 694.714) / 18445.939
=0.008773

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.

Fulltech Fiber Glass has a M-score of -2.34 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 -2.34 mean?
Fulltech Fiber Glass (ROCO:1815) has a Beneish M-Score of -2.34 as of Jul. 08, 2026. The Beneish M-score measures the likelihood of earnings manipulation. View historical data on Fulltech Fiber Glass and its competitors. According to the industry distribution chart, Fulltech Fiber Glass ranks #1452 out of 2405 companies in the Hardware industry, placing it in the top 60.4%.
Is Fulltech Fiber Glass' Beneish M-Score too high?
Fulltech Fiber Glass' current Beneish M-Score is -2.34. Based on the distribution chart, Fulltech Fiber Glass ranks #1452 out of 2405 companies in the Hardware industry, which is below the industry midpoint. Overall, Fulltech Fiber Glass has a GF Score™ of 59/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Fulltech Fiber Glass' Beneish M-Score compare to APH and GLW?
According to the Hardware industry distribution chart, Fulltech Fiber Glass ranks #1452 out of 2405 companies for Beneish M-Score. This places Fulltech Fiber Glass 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 Fulltech Fiber Glass and its competitors. Fulltech Fiber Glass's current Beneish M-Score is -2.34. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Fulltech Fiber Glass stock overvalued right now?
Based on GuruFocus' analysis, Fulltech Fiber Glass (ROCO:1815) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$35.94, compared to a current price of NT$96.50 — trading 168.5% above its estimated fair value. The current Beneish M-Score is -2.34. Fulltech Fiber Glass' overall GF Score™ is 59/100 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 Fulltech Fiber Glass (ROCO:1815), the current Beneish M-Score is -2.34 as of Jul. 08, 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 Fulltech Fiber Glass (ROCO:1815) Overvalued in 2026?

Based on GuruFocus' analysis, Fulltech Fiber Glass stock appears to be overvalued. The current stock price of NT$96.50 is trading 168.5% above its estimated GF Value™ of NT$35.94. GuruFocus considers Fulltech Fiber Glass to be Significantly Overvalued.

Key valuation signals for ROCO:1815:

  • Beneish M-Score: -2.34
  • GF Value™: NT$35.94 vs. price of NT$96.50 (168.5% above fair value)
  • GF Score™: 59/100 with 1 warning sign

No single metric tells the full story. See the ROCO:1815 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Fulltech Fiber Glass Business Description

Address No. 8, Dougong 16th Road, Yunlin County, Douliu, TWN
Fulltech Fiber Glass Corp is engaged in producing and selling fiberglass yarn and fiberglass fabric, which are the main upstream materials for Printed Circuit Boards. The reportable segments of the company are the Fiberglass Yarn and the Fiberglass Fabric segment. Geographically, the company generates a majority of its revenue from Taiwan and the rest from China.
59GF Score

Get the complete analysis for ROCO:1815

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

NT$96.50
Price
NT$35.94
GF Value