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IlluminaMEX:ILMN -4.53%57 Beneish M-Score is -2.62 as of Aug. 01, 2026. GuruFocus rates MEX:ILMN with a GF Score™ of 57/100 and a GF Value™ of MXN2,165.86 (Significantly Overvalued). The stock has 7 warning signs investors should review. Among 193 Medical Diagnostics & Research companies, Illumina ranks better than 60.62% 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 -2.62 no higher than -1.78, which implies that the company is unlikely to be a manipulator.
The historical rank and industry rank for Illumina's Beneish M-Score or its related term are showing as below:
MEX:ILMN'
s Beneish M-Score Range Over the Past 10 Years
Min: -3.43 Med: -2.75 Max: -1.39
Current: -2.62
During the past 13 years, the highest Beneish M-Score of Illumina was -1.39. The lowest was -3.43. And the median was -2.75.
The historical data trend for Illumina'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.
MEX:ILMN vs MTD, DGX, LH: Beneish M-Score Comparison
For the Diagnostics & Research subindustry, Illumina'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.
Illumina Beneish M-Score vs Medical Diagnostics & Research Industry
For the Medical Diagnostics & Research industry and Healthcare sector, Illumina's Beneish M-Score distribution charts can be found below:
* The bar in red indicates where Illumina's Beneish M-Score falls into.
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 Illumina 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 * 1.071
+
0.528 * 1.0022
+
0.404 * 1.0852
+
0.892 * 0.943
+
0.115 * 1.2708
-
0.172 * SGAI
+
4.679 * TATA
-
0.327 * LVGI
-
0.172 * 1.0563
+
4.679 * -0.066192
-
0.327 * 0.9264
=
-2.69
* 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.
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.
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))
=
(5551.078 / (5551.078 + 21860.701))
/
(3661.693 / (3661.693 + 19316.043))
=
0.202507
/
0.159358
=
1.2708
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
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
=
(14793.859 - 2766.17
-
19708.282)
/
116035.85
=
-0.066192
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.
Illumina has a M-score of -2.69 suggests that the company is unlikely to be a manipulator.
Illumina (MEX:ILMN) has a Beneish M-Score of -2.62 as of Aug. 01, 2026. The Beneish M-score measures the likelihood of earnings manipulation. View historical data on Illumina and its competitors. According to the industry distribution chart, Illumina ranks #76 out of 193 companies in the Medical Diagnostics & Research industry, placing it in the top 39.4%.
Is Illumina's Beneish M-Score too high?
Illumina's current Beneish M-Score is -2.62. Based on the distribution chart, Illumina ranks #76 out of 193 companies in the Medical Diagnostics & Research industry, which is above the industry midpoint. Overall, Illumina has a GF Score™ of 57/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Illumina's Beneish M-Score compare to MTD and DGX?
According to the Medical Diagnostics & Research industry distribution chart, Illumina ranks #76 out of 193 companies for Beneish M-Score. This puts Illumina 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 Medical Diagnostics & Research company?
A good Beneish M-Score depends on the Medical Diagnostics & Research 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 Illumina and its competitors. Illumina's current Beneish M-Score is -2.62. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Illumina stock overvalued right now?
Based on GuruFocus' analysis, Illumina (MEX:ILMN) is currently considered Significantly Overvalued. The stock's GF Value™ is MXN2,165.86, compared to a current price of MXN3,375.00 — trading 55.8% above its estimated fair value. The current Beneish M-Score is -2.62. Illumina's overall GF Score™ is 57/100 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 Illumina (MEX:ILMN), the current Beneish M-Score is -2.62 as of Aug. 01, 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 Illumina (MEX:ILMN) Overvalued in 2026?
Based on GuruFocus' analysis, Illumina stock appears to be overvalued.
The current stock price of MXN3,375.00 is trading 55.8% above its estimated GF Value™ of MXN2,165.86.
GuruFocus considers Illumina to be Significantly Overvalued.
Key valuation signals for MEX:ILMN:
Beneish M-Score: -2.62
GF Value™: MXN2,165.86 vs. price of MXN3,375.00 (55.8% above fair value)
No single metric tells the full story. See the MEX:ILMN stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Illumina provides tools and services to analyze genetic material with life science and clinical lab applications. The company generates over 90% of its revenue from sequencing instruments, consumables, and services. Illumina's high-throughput technology enables whole genome sequencing in humans and other large organisms. Its lower throughput tools enable applications that require smaller data outputs, such as viral and cancer tumor screening. Illumina also sells microarrays (9% of 2024 sales) that enable lower-cost, focused genetic screening with primarily consumer and agricultural applications.
57GF Score
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