Sonel (WAR:SON) Beneish M-Score: -2.78 (As of Jun. 26, 2026)


WAR:SON Sonel SA WAR:SON
93 GF Score
Price zł13.75
GF Value zł18.06
Valuation Modestly Undervalued
! 7 Warning Signs
View Full Analysis

What is Sonel Beneish M-Score?

Sonel WAR:SON -2.48% 93 Beneish M-Score is -2.78 as of Jun. 26, 2026. GuruFocus rates WAR:SON with a GF Score™ of 93/100 and a GF Value™ of zł18.06 (Modestly Undervalued). The stock has 7 warning signs investors should review. Among 2,404 Hardware companies, Sonel ranks better than 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 -2.78 no higher than -1.78, which implies that the company is unlikely to be a manipulator.

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

WAR:SON' s Beneish M-Score Range Over the Past 10 Years
Min: -3.12   Med: -2.59   Max: -1.67
Current: -2.78

During the past 13 years, the highest Beneish M-Score of Sonel was -1.67. The lowest was -3.12. And the median was -2.59.


Sonel Beneish M-Score Historical Data

* Premium members only.

The historical data trend for Sonel'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.

Sonel Beneish M-Score Chart

Sonel Annual Data
Trend Dec15 Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24
Beneish M-Score
Get a 7-Day Free Trial Premium Member Only Premium Member Only -3.12 -1.67 -2.25 -2.84 -2.74

Sonel Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Mar26
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 -2.74 -2.80 -2.32 -2.78 -2.78

WAR:SON vs COHR, KEYS, GRMN: Beneish M-Score Comparison

For the Scientific & Technical Instruments subindustry, Sonel'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.


Sonel Beneish M-Score vs Hardware Industry

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

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


WAR:SON
93GF Score
Sonel SA WAR:SON
Beneish M-Score is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Sonel 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 Sonel 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 * 0.8238+0.528 * 1.1145+0.404 * 1.2891+0.892 * 0.8469+0.115 * 0.8473
-0.172 * SGAI+4.679 * TATA-0.327 * LVGI
-0.172 * 1.0913+4.679 * -0.063423-0.327 * 0.5263
=-2.78

* 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 (Mar26) TTM:Last Year (Dec24) TTM:
Total Receivables was zł23.0 Mil.
Revenue was 38.312 + 39.977 + 59.763 + 66.881 = zł204.9 Mil.
Gross Profit was 10.643 + 8.673 + 11.139 + 13.371 = zł43.8 Mil.
Total Current Assets was zł87.3 Mil.
Total Assets was zł152.0 Mil.
Property, Plant and Equipment(Net PPE) was zł28.9 Mil.
Depreciation, Depletion and Amortization(DDA) was zł12.7 Mil.
Selling, General, & Admin. Expense(SGA) was zł30.5 Mil.
Total Current Liabilities was zł23.9 Mil.
Long-Term Debt & Capital Lease Obligation was zł1.0 Mil.
Net Income was 3.111 + -1.383 + 2.007 + 4.195 = zł7.9 Mil.
Non Operating Income was 0 + 0 + 0 + 0 = zł0.0 Mil.
Cash Flow from Operations was 2.792 + -0.703 + -1.837 + 17.319 = zł17.6 Mil.
Total Receivables was zł32.9 Mil.
Revenue was 83.927 + 61.236 + 46.566 + 50.253 = zł242.0 Mil.
Gross Profit was 18.963 + 14.884 + 10.653 + 13.172 = zł57.7 Mil.
Total Current Assets was zł127.6 Mil.
Total Assets was zł195.1 Mil.
Property, Plant and Equipment(Net PPE) was zł31.9 Mil.
Depreciation, Depletion and Amortization(DDA) was zł11.1 Mil.
Selling, General, & Admin. Expense(SGA) was zł33.0 Mil.
Total Current Liabilities was zł59.3 Mil.
Long-Term Debt & Capital Lease Obligation was zł1.4 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)
=(22.961 / 204.933) / (32.911 / 241.982)
=0.112041 / 0.136006
=0.8238

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)
=(57.672 / 241.982) / (43.826 / 204.933)
=0.238332 / 0.213855
=1.1145

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 - (87.3 + 28.91) / 152.01) / (1 - (127.582 + 31.891) / 195.119)
=0.235511 / 0.182689
=1.2891

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
=204.933 / 241.982
=0.8469

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))
=(11.136 / (11.136 + 31.891)) / (12.715 / (12.715 + 28.91))
=0.258814 / 0.305465
=0.8473

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)
=(30.542 / 204.933) / (33.047 / 241.982)
=0.149034 / 0.136568
=1.0913

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)
=((0.964 + 23.939) / 152.01) / ((1.402 + 59.331) / 195.119)
=0.163825 / 0.311261
=0.5263

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
=(7.93 - 0 - 17.571) / 152.01
=-0.063423

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.

Sonel has a M-score of -2.78 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 -2.78 mean?
Sonel (WAR:SON) has a Beneish M-Score of -2.78 as of Jun. 26, 2026. The Beneish M-score measures the likelihood of earnings manipulation. View historical data on Sonel and its competitors. According to the industry distribution chart, Sonel ranks #649 out of 2404 companies in the Hardware industry, placing it in the top 27%.
Is Sonel's Beneish M-Score too high?
Sonel's current Beneish M-Score is -2.78. Based on the distribution chart, Sonel ranks #649 out of 2404 companies in the Hardware industry, which is above the industry midpoint. Overall, Sonel has a GF Score™ of 93/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Sonel's Beneish M-Score compare to COHR and KEYS?
According to the Hardware industry distribution chart, Sonel ranks #649 out of 2404 companies for Beneish M-Score. This puts Sonel in the upper 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 Sonel and its competitors. Sonel's current Beneish M-Score is -2.78. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sonel stock overvalued right now?
Based on GuruFocus' analysis, Sonel (WAR:SON) is currently considered Modestly Undervalued. The stock's GF Value™ is zł18.06, compared to a current price of zł13.75 — trading 23.9% below its estimated fair value. The current Beneish M-Score is -2.78. Sonel's overall GF Score™ is 93/100 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 Sonel (WAR:SON), the current Beneish M-Score is -2.78 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 Sonel (WAR:SON) Overvalued in 2026?

Based on GuruFocus' analysis, Sonel stock appears to be undervalued. The current stock price of zł13.75 is trading 23.9% below its estimated GF Value™ of zł18.06. GuruFocus considers Sonel to be Modestly Undervalued.

Key valuation signals for WAR:SON:

  • Beneish M-Score: -2.78
  • GF Value™: zł18.06 vs. price of zł13.75 (23.9% below fair value)
  • GF Score™: 93/100 with 7 warning signs

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


Sonel Business Description

Address Wokulskiego 11, Swidnica, POL, 58-100
Sonel SA is a Polish manufacturer of measuring instruments for power generation and telecommunications sectors. The company is used to measure fault loop resistance and impedance, insulation resistance, earth resistance and soil resistivity, among others. It offers low resistance meters, phase sequence testers, wire tracers, power quality analyzers, clamp meters, multimeters and pyrometers.
93GF Score

Get the complete analysis for WAR:SON

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

zł13.75
Price
zł18.06
GF Value