Yankey Engineering Co (TPE:6691) Beneish M-Score: -1.60 (As of Jun. 26, 2026)


TPE:6691 Yankey Engineering Co Ltd TPE:6691
97 GF Score
Price NT$797.00
GF Value NT$583.08
Valuation Significantly Overvalued
! 7 Warning Signs
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What is Yankey Engineering Co Beneish M-Score?

Yankey Engineering Co TPE:6691 +5.15% 97 Beneish M-Score is -1.60 as of Jun. 26, 2026. GuruFocus rates TPE:6691 with a GF Score™ of 97/100 and a GF Value™ of NT$583.08 (Significantly Overvalued). The stock has 7 warning signs investors should review. Among 1,704 Construction companies, Yankey Engineering Co ranks worse than 85.04% 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.

Warning Sign:

Beneish M-Score -1.6 higher than -1.78, which implies that the company might have manipulated its financial results.

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

TPE:6691' s Beneish M-Score Range Over the Past 10 Years
Min: -2.69   Med: -1.91   Max: -1.6
Current: -1.6

During the past 12 years, the highest Beneish M-Score of Yankey Engineering Co was -1.60. The lowest was -2.69. And the median was -1.91.


Yankey Engineering Co Beneish M-Score Historical Data

* Premium members only.

The historical data trend for Yankey Engineering 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.

Yankey Engineering Co Beneish M-Score Chart

Yankey Engineering 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 -1.76 -1.91 -2.43 -2.69 -1.60

Yankey Engineering Co 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 -2.69 -2.81 -2.55 -2.60 -1.60

TPE:6691 vs PWR, FIX, EME: Beneish M-Score Comparison

For the Engineering & Construction subindustry, Yankey Engineering 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.


Yankey Engineering Co Beneish M-Score vs Construction Industry

For the Construction industry and Industrials sector, Yankey Engineering Co's Beneish M-Score distribution charts can be found below:

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


TPE:6691
97GF Score
Yankey Engineering Co Ltd TPE:6691
Beneish M-Score is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Yankey Engineering 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 Yankey Engineering 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 * 0.8992+0.528 * 1.04+0.404 * 1.4858+0.892 * 1.4713+0.115 * 1.2207
-0.172 * SGAI+4.679 * TATA-0.327 * LVGI
-0.172 * 0.872+4.679 * 0.063279-0.327 * 1.027
=-1.60

* 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$11,171 Mil.
Revenue was 6974.873 + 5549.329 + 5881.509 + 3946.391 = NT$22,352 Mil.
Gross Profit was 1358.204 + 980.85 + 1089.921 + 836.047 = NT$4,265 Mil.
Total Current Assets was NT$18,476 Mil.
Total Assets was NT$19,545 Mil.
Property, Plant and Equipment(Net PPE) was NT$785 Mil.
Depreciation, Depletion and Amortization(DDA) was NT$51 Mil.
Selling, General, & Admin. Expense(SGA) was NT$539 Mil.
Total Current Liabilities was NT$11,726 Mil.
Long-Term Debt & Capital Lease Obligation was NT$18 Mil.
Net Income was 979.164 + 735.441 + 673.609 + 597.252 = NT$2,985 Mil.
Non Operating Income was 0 + 0 + 0 + 0 = NT$0 Mil.
Cash Flow from Operations was -113.787 + 380.631 + 398.528 + 1083.313 = NT$1,749 Mil.
Total Receivables was NT$8,444 Mil.
Revenue was 5239.136 + 3767.421 + 3431.213 + 2754.284 = NT$15,192 Mil.
Gross Profit was 987.65 + 767.764 + 694.932 + 564.418 = NT$3,015 Mil.
Total Current Assets was NT$15,084 Mil.
Total Assets was NT$15,693 Mil.
Property, Plant and Equipment(Net PPE) was NT$455 Mil.
Depreciation, Depletion and Amortization(DDA) was NT$37 Mil.
Selling, General, & Admin. Expense(SGA) was NT$420 Mil.
Total Current Liabilities was NT$9,172 Mil.
Long-Term Debt & Capital Lease Obligation was NT$10 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)
=(11170.691 / 22352.102) / (8443.929 / 15192.054)
=0.49976 / 0.555812
=0.8992

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)
=(3014.764 / 15192.054) / (4265.022 / 22352.102)
=0.198443 / 0.190811
=1.04

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 - (18476.113 + 785.007) / 19544.865) / (1 - (15084.491 + 455.251) / 15693.076)
=0.014518 / 0.009771
=1.4858

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
=22352.102 / 15192.054
=1.4713

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))
=(36.942 / (36.942 + 455.251)) / (51.43 / (51.43 + 785.007))
=0.075056 / 0.061487
=1.2207

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)
=(539.046 / 22352.102) / (420.136 / 15192.054)
=0.024116 / 0.027655
=0.872

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)
=((17.643 + 11726.491) / 19544.865) / ((9.537 + 9172.197) / 15693.076)
=0.600881 / 0.585082
=1.027

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
=(2985.466 - 0 - 1748.685) / 19544.865
=0.063279

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.

Yankey Engineering Co has a M-score of -1.60 signals that the company is likely to be a manipulator.

Frequently Asked Questions Learn more about Beneish M-Score →
What does a Beneish M-Score of -1.60 mean?
Yankey Engineering Co (TPE:6691) has a Beneish M-Score of -1.60 as of Jun. 26, 2026. The Beneish M-score measures the likelihood of earnings manipulation. View historical data on Yankey Engineering Co and its competitors. According to the industry distribution chart, Yankey Engineering Co ranks #1449 out of 1704 companies in the Construction industry, placing it in the top 85%.
Is Yankey Engineering Co's Beneish M-Score too high?
Yankey Engineering Co's current Beneish M-Score is -1.60. Based on the distribution chart, Yankey Engineering Co ranks #1449 out of 1704 companies in the Construction industry, which is in the bottom quartile relative to peers. Overall, Yankey Engineering Co has a GF Score™ of 97/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Yankey Engineering Co's Beneish M-Score compare to PWR and FIX?
According to the Construction industry distribution chart, Yankey Engineering Co ranks #1449 out of 1704 companies for Beneish M-Score. This places Yankey Engineering Co 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 Construction company?
A good Beneish M-Score depends on the Construction 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 Yankey Engineering Co and its competitors. Yankey Engineering Co's current Beneish M-Score is -1.60. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Yankey Engineering Co stock overvalued right now?
Based on GuruFocus' analysis, Yankey Engineering Co (TPE:6691) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$583.08, compared to a current price of NT$797.00 — trading 36.7% above its estimated fair value. The current Beneish M-Score is -1.60. Yankey Engineering Co's overall GF Score™ is 97/100 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 Yankey Engineering Co (TPE:6691), the current Beneish M-Score is -1.60 as of Jun. 26, 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 Yankey Engineering Co (TPE:6691) Overvalued in 2026?

Based on GuruFocus' analysis, Yankey Engineering Co stock appears to be overvalued. The current stock price of NT$797.00 is trading 36.7% above its estimated GF Value™ of NT$583.08. GuruFocus considers Yankey Engineering Co to be Significantly Overvalued.

Key valuation signals for TPE:6691:

  • Beneish M-Score: -1.60
  • GF Value™: NT$583.08 vs. price of NT$797.00 (36.7% above fair value)
  • GF Score™: 97/100 with 7 warning signs

No single metric tells the full story. See the TPE:6691 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Yankey Engineering Co Business Description

Address Wenhua 2nd Road, Section 1, No. 266, Room 3, 18th Floor, Linkou District, New Taipei City, TWN, 244
Yankey Engineering Co Ltd is engaged in the design and installation of clean room systems, refrigeration, air conditioning systems, and ice-making systems, as well as the sales of materials for these systems. The various services offered by the company include clean room system engineering, high and low voltage transmission system installation, design and construction of fire, water, and electrical systems, and providing comprehensive MEP (Mechanical, Electrical, Plumbing) turnkey services for commercial office buildings, among others. Geographically, the company generates the majority of its revenue from Taiwan and the rest from China, Thailand, Malaysia, and the USA.
97GF Score

Get the complete analysis for TPE:6691

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

NT$797.00
Price
NT$583.08
GF Value