Inspire Medical Systems (STU:2DR) Beneish M-Score: -1.58 (As of Jun. 25, 2026)


STU:2DR Inspire Medical Systems Inc STU:2DR
55 GF Score
Price €37.80
GF Value €190.61
Valuation Possible Value Trap
! 7 Warning Signs
View Full Analysis

What is Inspire Medical Systems Beneish M-Score?

Inspire Medical Systems STU:2DR +3.85% 55 Beneish M-Score is -1.58 as of Jun. 25, 2026. GuruFocus rates STU:2DR with a GF Score™ of 55/100 and a GF Value™ of €190.61 (Possible Value Trap). The stock has 7 warning signs investors should review. Among 766 Medical Devices & Instruments companies, Inspire Medical Systems ranks worse than 87.34% 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 -1.58 higher than -1.78, which implies that the company might have manipulated its financial results.

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

STU:2DR' s Beneish M-Score Range Over the Past 10 Years
Min: -3.05   Med: -2.1   Max: 31.37
Current: -1.58

During the past 11 years, the highest Beneish M-Score of Inspire Medical Systems was 31.37. The lowest was -3.05. And the median was -2.10.


Inspire Medical Systems Beneish M-Score Historical Data

* Premium members only.

The historical data trend for Inspire Medical Systems'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.

Inspire Medical Systems Beneish M-Score Chart

Inspire Medical Systems 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 16.50 -2.26 -2.12 -1.90 -1.63

Inspire Medical Systems Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 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 -2.41 -1.62 -3.05 -1.63 -1.58

STU:2DR vs BFLY, ATEC, TNDM: Beneish M-Score Comparison

For the Medical Devices subindustry, Inspire Medical Systems'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.


Inspire Medical Systems Beneish M-Score vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, Inspire Medical Systems's Beneish M-Score distribution charts can be found below:

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


STU:2DR
55GF Score
Inspire Medical Systems Inc STU:2DR
Beneish M-Score is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Inspire Medical Systems 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 Inspire Medical Systems 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 * 1.0528+0.528 * 0.987+0.404 * 3.1071+0.892 * 1.0077+0.115 * 0.6952
-0.172 * SGAI+4.679 * TATA-0.327 * LVGI
-0.172 * 1.0602+4.679 * -0.002324-0.327 * 1.0046
=-1.64

* 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 (Mar25) TTM:
Total Receivables was €90.9 Mil.
Revenue was 176.964 + 229.792 + 191.275 + 188.214 = €786.2 Mil.
Gross Profit was 153.029 + 198.987 + 164.204 + 158.153 = €674.4 Mil.
Total Current Assets was €490.3 Mil.
Total Assets was €788.3 Mil.
Property, Plant and Equipment(Net PPE) was €107.1 Mil.
Depreciation, Depletion and Amortization(DDA) was €13.8 Mil.
Selling, General, & Admin. Expense(SGA) was €543.6 Mil.
Total Current Liabilities was €77.3 Mil.
Long-Term Debt & Capital Lease Obligation was €25.6 Mil.
Net Income was -9.769 + 116.221 + 8.462 + -3.114 = €111.8 Mil.
Non Operating Income was -0.195 + 0.282 + -0.056 + -3.033 = €-3.0 Mil.
Cash Flow from Operations was 11.114 + 44.809 + 58.384 + 2.327 = €116.6 Mil.
Total Receivables was €85.7 Mil.
Revenue was 186.218 + 228.931 + 183.075 + 181.977 = €780.2 Mil.
Gross Profit was 157.812 + 194.562 + 153.884 + 154.253 = €660.5 Mil.
Total Current Assets was €528.8 Mil.
Total Assets was €676.0 Mil.
Property, Plant and Equipment(Net PPE) was €94.5 Mil.
Depreciation, Depletion and Amortization(DDA) was €8.1 Mil.
Selling, General, & Admin. Expense(SGA) was €508.8 Mil.
Total Current Liabilities was €58.7 Mil.
Long-Term Debt & Capital Lease Obligation was €29.1 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)
=(90.901 / 786.245) / (85.681 / 780.201)
=0.115614 / 0.109819
=1.0528

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)
=(660.511 / 780.201) / (674.373 / 786.245)
=0.846591 / 0.857714
=0.987

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 - (490.298 + 107.052) / 788.34) / (1 - (528.803 + 94.486) / 675.998)
=0.242269 / 0.077972
=3.1071

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
=786.245 / 780.201
=1.0077

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))
=(8.134 / (8.134 + 94.486)) / (13.777 / (13.777 + 107.052))
=0.079263 / 0.114021
=0.6952

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)
=(543.629 / 786.245) / (508.799 / 780.201)
=0.691424 / 0.652138
=1.0602

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)
=((25.562 + 77.347) / 788.34) / ((29.126 + 58.71) / 675.998)
=0.130539 / 0.129935
=1.0046

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
=(111.8 - -3.002 - 116.634) / 788.34
=-0.002324

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.

Inspire Medical Systems has a M-score of -1.64 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 -1.58 mean?
Inspire Medical Systems (STU:2DR) has a Beneish M-Score of -1.58 as of Jun. 25, 2026. The Beneish M-score measures the likelihood of earnings manipulation. View historical data on Inspire Medical Systems and its competitors. According to the industry distribution chart, Inspire Medical Systems ranks #669 out of 766 companies in the Medical Devices & Instruments industry, placing it in the top 87.3%.
Is Inspire Medical Systems' Beneish M-Score too high?
Inspire Medical Systems' current Beneish M-Score is -1.58. Based on the distribution chart, Inspire Medical Systems ranks #669 out of 766 companies in the Medical Devices & Instruments industry, which is in the bottom quartile relative to peers. Overall, Inspire Medical Systems has a GF Score™ of 55/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Inspire Medical Systems' Beneish M-Score compare to BFLY and ATEC?
According to the Medical Devices & Instruments industry distribution chart, Inspire Medical Systems ranks #669 out of 766 companies for Beneish M-Score. This places Inspire Medical Systems 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 Medical Devices & Instruments company?
A good Beneish M-Score depends on the Medical Devices & Instruments 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 Inspire Medical Systems and its competitors. Inspire Medical Systems's current Beneish M-Score is -1.58. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Inspire Medical Systems stock overvalued right now?
Based on GuruFocus' analysis, Inspire Medical Systems (STU:2DR) is currently considered Possible Value Trap. The stock's GF Value™ is €190.61, compared to a current price of €37.80 — trading 80.2% below its estimated fair value. The current Beneish M-Score is -1.58. Inspire Medical Systems' overall GF Score™ is 55/100 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 Inspire Medical Systems (STU:2DR), the current Beneish M-Score is -1.58 as of Jun. 25, 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 Inspire Medical Systems (STU:2DR) Overvalued in 2026?

Based on GuruFocus' analysis, Inspire Medical Systems stock appears to be undervalued. The current stock price of €37.80 is trading 80.2% below its estimated GF Value™ of €190.61. GuruFocus considers Inspire Medical Systems to be Possible Value Trap.

Key valuation signals for STU:2DR:

  • Beneish M-Score: -1.58
  • GF Value™: €190.61 vs. price of €37.80 (80.2% below fair value)
  • GF Score™: 55/100 with 7 warning signs

No single metric tells the full story. See the STU:2DR stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Inspire Medical Systems Business Description

Other Exchanges INSP:USA
Address 5500 Wayzata Boulevard, Suite 1600, Golden Valley, MN, USA, 55416
Inspire Medical Systems Inc operates as a medical technology company. It focuses on the development and commercialization of minimally invasive solutions for patients with obstructive sleep apnea (OSA). It offers Inspire system, a neurostimulation technology that provides a safe and effective treatment for moderate to severe obstructive sleep apnea. The firm has operating footprints in the United States and All other countries wherein, it generates a majority of its revenue from the United States. Its segment revenues are derived from the sales of its product, the Inspire system, to hospitals and ambulatory surgery centers in the U.S. and in selected countries in Europe and the Asia Pacific region.
55GF Score

Get the complete analysis for STU:2DR

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

€37.80
Price
€190.61
GF Value