Inogen (STU:6IO) Quality Rank

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

STU:6IO Inogen Inc STU:6IO
66 GF Score
Price €5.65
GF Value €5.99
! 3 Warning Signs
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What is Inogen Quality Rank?

The Quality Rank measures the business quality of a company relative to other companies. It is ranked based on the strength of the balance sheet, as well as the profitability and growth of the business. The ranked companies are split in equal numbers and then ranked from 1 to 10, with 10 being the highest.

The rank of balance sheet (30%)

The rank of balance sheet is done through the ranking of:
  • Interest coverage
  • Zscore
  • Debt to revenue
  • Equity to asset
  • Cash to debt

The rank of Profitability (70%)

The ranking of Profitability is done by ranking:
  • Operating margin mean rank (10-year mean average profit margine)
  • Operating margin growth rank
  • Fscore
  • Predictability rank
  • Revenue growth rank (5 year), when the growth is higher than 25%, set it as 25%
  • Num of year profit (number of years that is profitable within the last 10 years)
  • ROIC median (10-year median of ROIC)

Inogen Quality Rank Related Terms

STU:6IO
66GF Score
Inogen Inc STU:6IO
Quality Rank is just one metric. See GF Score™, valuation, warning signs, and more.
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Is Inogen (STU:6IO) Overvalued in 2026?

Based on GuruFocus' analysis, Inogen stock appears to be undervalued. The current stock price of €5.65 is trading 5.7% below its estimated GF Value™ of €5.99.

Key valuation signals for STU:6IO:

  • Quality Rank:
  • GF Value™: €5.99 vs. price of €5.65 (5.7% below fair value)
  • GF Score™: 66/100 with 3 warning signs

No single metric tells the full story. See the STU:6IO stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

Inogen Business Description

Other Exchanges INGN:USA
Address 500 Cummings Center, Suite 2800, Beverly, MA, USA, 01915
Inogen Inc is a medical technology business that focuses on respiratory health. It develops, manufactures, and markets respiratory health products, including portable oxygen concentrators, or POCs, used to deliver supplemental long-term oxygen therapy to patients suffering from chronic respiratory conditions and the Simeox product for airway clearance treatment. In addition, it has started distributing the Inogen Voxi 5 stationary oxygen concentrator as well as the Aurora continuous positive airway pressure, or CPAP, masks in the United States. The company derives revenues from customers through the development, manufacturing, marketing, sales, and rental of respiratory products.
66GF Score

Get the complete analysis for STU:6IO

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

€5.65
Price
€5.99
GF Value