Spineway (STU:37S) Operating Margin %: -3.72% (As of Dec. 2025)


STU:37S Spineway STU:37S
45 GF Score
Price €0.12
GF Value €198.81
Valuation Possible Value Trap
! 4 Warning Signs
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What is Spineway Operating Margin %?

Spineway STU:37S +2.78% 45 Operating Margin % is -3.72% as of Dec. 2025. GuruFocus rates STU:37S with a GF Score™ of 45/100 and a GF Value™ of €198.81 (Possible Value Trap). The stock has 4 warning signs investors should review. Among 816 Medical Devices & Instruments companies, Spineway ranks worse than 67.89% on this metric.

Operating Margin % is calculated as Operating Income divided by its Revenue. Spineway's Operating Income for the six months ended in Dec. 2025 was €-0.26 Mil. Spineway's Revenue for the six months ended in Dec. 2025 was €6.86 Mil. Therefore, Spineway's Operating Margin % for the quarter that ended in Dec. 2025 was -3.72%.

Good Sign:

Spineway operating margin is expanding. Margin expansion is usually a good sign.

The historical rank and industry rank for Spineway's Operating Margin % or its related term are showing as below:

STU:37S' s Operating Margin % Range Over the Past 10 Years
Min: -51.86   Med: -37.2   Max: -7.4
Current: -12.94


STU:37S's Operating Margin % is ranked worse than
67.89% of 816 companies
in the Medical Devices & Instruments industry
Industry Median: 3.465 vs STU:37S: -12.94

Spineway's 5-Year Average Operating Margin % Growth Rate was 27.90% per year.

Spineway's Operating Income for the six months ended in Dec. 2025 was €-0.26 Mil. Its Operating Income for the trailing twelve months (TTM) ended in Dec. 2025 was €-1.61 Mil.

Warning Sign:

Spineway has never been profitable in the past 3 years. It lost money every year.


Spineway  (STU:37S) Operating Margin % Explanation

Just like Gross Margin %, it is important to see a company maintains its operating margin over time. Among the same industry, a company with higher operating margin is more efficient in its operation. It is also more stable during industry slowdown or recessions. Peter Lynch prefers those with higher margins than those with lower margins.


Be Aware

Operating Margin % can be manipulated by adjusting the rate of depreciation, depletion and amortization (DDA).

If a company is facing competition, its Operating Margin % may decline. Often the Operating Margin % declines well before the company's Revenue or even profit decline. Therefore, Operating Margin % is a very important indicator of whether the company is facing problems.

For instance, by 2012, Nokia (NOK)'s problems were well known and its stock had lost more than 90% of its market value since 2007. But Nokia’s Operating Margin % had already been in decline since 2002, although its Earnings per Share (Diluted) were still rising. Investors who paid attention to Operating Margin % would have avoided this huge loss. The same can be said for Research-in-Motion (RIMM).

Therefore, Operating Margin % is a very important screening filter for GuruFocus. GuruFocus's Buffett-Munger screener requires that the profit margin is either consistent or expanding. The Model Portfolio of the Buffett-Munger screener has outperformed the market every year since inception in 2009.


Spineway Operating Margin % Related Terms


Spineway Operating Margin % Historical Data

* Premium members only.

The historical data trend for Spineway's Operating Margin % 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.

Spineway Operating Margin % Chart

Spineway Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Operating Margin %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -32.87 -42.86 -40.56 -7.40 -12.94

Spineway Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Operating Margin % 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 -59.15 -11.80 -2.09 -24.30 -3.72

STU:37S vs ISRG, BDX, MDLN: Operating Margin % Comparison

For the Medical Instruments & Supplies subindustry, Spineway's Operating Margin %, along with its competitors' market caps and Operating Margin % 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.


Spineway Operating Margin % vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, Spineway's Operating Margin % distribution charts can be found below:

* The bar in red indicates where Spineway's Operating Margin % falls into.


STU:37S
45GF Score
Spineway STU:37S
Operating Margin % is just one metric. See GF Score™, valuation, warning signs, and more.
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Spineway Operating Margin % Calculation

Operating Margin % - also known as operating income margin, operating profit margin and return on sales (ROS) - is the ratio of Operating Income divided by net sales or Revenue, usually presented in percent.

Spineway's Operating Margin % for the fiscal year that ended in Dec. 2025 is calculated as

Operating Margin %=Operating Income (A: Dec. 2025 ) / Revenue (A: Dec. 2025 )
=-1.609 / 12.43
=-12.94 %

Spineway's Operating Margin % for the quarter that ended in Dec. 2025 is calculated as

Operating Margin %=Operating Income (Q: Dec. 2025 ) / Revenue (Q: Dec. 2025 )
=-0.255 / 6.857
=-3.72 %

* 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.

Frequently Asked Questions Learn more about Operating Margin % →
What does a Operating Margin % of -3.72% mean?
Spineway (STU:37S) has a Operating Margin % of -3.72% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on Spineway and its competitors. According to the industry distribution chart, Spineway ranks #554 out of 816 companies in the Medical Devices & Instruments industry, placing it in the top 67.9%.
Is Spineway's Operating Margin % too high?
Spineway's current Operating Margin % is -3.72%. Based on the distribution chart, Spineway ranks #554 out of 816 companies in the Medical Devices & Instruments industry, which is below the industry midpoint. Overall, Spineway has a GF Score™ of 45/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Spineway's Operating Margin % compare to ISRG and BDX?
According to the Medical Devices & Instruments industry distribution chart, Spineway ranks #554 out of 816 companies for Operating Margin %. This places Spineway in the lower half of its industry. The industry median Operating Margin % is 3.47. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Operating Margin % for a Medical Devices & Instruments company?
The median Operating Margin % among Medical Devices & Instruments companies is 3.47, based on 816 companies in the industry. Companies in the top quartile (top 25%) have a Operating Margin % significantly above this median, while those in the bottom quartile fall well below. However, Operating Margin % 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 Operating Margin % mean?
A high Operating Margin % can signal that a stock is expensive relative to its fundamentals. Operating margin is the ratio of total operating income to net sales. View historical data on Spineway and its competitors. For the Medical Devices & Instruments industry, the median Operating Margin % is 3.47 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Spineway's current Operating Margin % is -3.72%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Spineway stock overvalued right now?
Based on GuruFocus' analysis, Spineway (STU:37S) is currently considered Possible Value Trap. The stock's GF Value™ is €198.81, compared to a current price of €0.12 — trading 99.9% below its estimated fair value. The current Operating Margin % is -3.72%. Spineway's overall GF Score™ is 45/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Operating Margin % calculated?
Operating Margin % is calculated from a company's financial statements. For Spineway (STU:37S), the current Operating Margin % is -3.72% as of Dec. 2025. 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 Spineway (STU:37S) Overvalued in 2026?

Based on GuruFocus' analysis, Spineway stock appears to be undervalued. The current stock price of €0.12 is trading 99.9% below its estimated GF Value™ of €198.81. GuruFocus considers Spineway to be Possible Value Trap.

Key valuation signals for STU:37S:

  • Operating Margin %: -3.72%
  • GF Value™: €198.81 vs. price of €0.12 (99.9% below fair value)
  • GF Score™: 45/100 with 4 warning signs

No single metric tells the full story. See the STU:37S stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Spineway Business Description

Other Exchanges ALSPW:France37S:Germany
Address 7 Allee Moulin Berger, Ecully, FRA, 69130
Spineway designs produce and markets implant lines and ancillary surgical equipment used for the treatment of severe disorders of the spinal column. The group offers spinal systems, cervical and lumbar cages, cervical plates, bone substitutes, and other such medical instruments.
45GF Score

Get the complete analysis for STU:37S

Operating Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€0.12
Price
€198.81
GF Value