Inspire Medical Systems (STU:2DR) Cyclically Adjusted Book per Share: €8.95 (As of Mar. 2026)


STU:2DR Inspire Medical Systems Inc STU:2DR
56 GF Score
Price €40.80
GF Value €188.24
Valuation Possible Value Trap
! 7 Warning Signs
View Full Analysis

What is Inspire Medical Systems Cyclically Adjusted Book per Share?

Inspire Medical Systems STU:2DR -0.49% 56 Cyclically Adjusted Book per Share is €8.95 as of Mar. 2026. GuruFocus rates STU:2DR with a GF Score™ of 56/100 and a GF Value™ of €188.24 (Possible Value Trap). The stock has 7 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

Inspire Medical Systems's adjusted book value per share data for the fiscal year that ended in Dec. 2025 was €23.343. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is €8.95 for the trailing ten years ended in Dec. 2025.

Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

As of today (2026-07-04), Inspire Medical Systems's current stock price is € 40.80. Inspire Medical Systems's Cyclically Adjusted Book per Share for the fiscal year that ended in Dec. 2025 was €8.95. Inspire Medical Systems's Cyclically Adjusted PB Ratio of today is 4.56.

During the past 11 years, the highest Cyclically Adjusted PB Ratio of Inspire Medical Systems was 23.96. The lowest was 4.45. And the median was 13.97.


Inspire Medical Systems  (STU:2DR) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

Inspire Medical Systems's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=40.80/8.95
=4.56

* 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.

During the past 11 years, the highest Cyclically Adjusted PB Ratio of Inspire Medical Systems was 23.96. The lowest was 4.45. And the median was 13.97.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Inspire Medical Systems Cyclically Adjusted Book per Share Related Terms


Inspire Medical Systems Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Inspire Medical Systems's Cyclically Adjusted Book per Share 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 Cyclically Adjusted Book per Share Chart

Inspire Medical Systems Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 8.09 8.95

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
Cyclically Adjusted Book per Share 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 0.00 0.00 0.00 8.95 0.00

STU:2DR vs ENOV, PRCT, AHCO: Cyclically Adjusted Book per Share Comparison

For the Medical Devices subindustry, Inspire Medical Systems's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB Ratio 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 Cyclically Adjusted PB Ratio vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, Inspire Medical Systems's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Inspire Medical Systems's Cyclically Adjusted PB Ratio falls into.


STU:2DR
56GF Score
Inspire Medical Systems Inc STU:2DR
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Inspire Medical Systems Cyclically Adjusted Book per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get Cyclically Adjusted Book per Share.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

For example, Inspire Medical Systems's adjusted Book Value per Share data for the fiscal year that ended in Dec. 2025 was:

Adj_Book=Book Value per Share /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=23.343/324.0540*324.0540
=23.343

Current CPI (Dec. 2025) = 324.0540.

Inspire Medical Systems Annual Data

Book Value per Share CPI Adj_Book
201612 -7.079 241.432 -9.502
201712 -7.377 246.524 -9.697
201812 6.160 251.233 7.946
201912 5.221 256.974 6.584
202012 6.977 260.474 8.680
202112 7.394 278.802 8.594
202212 16.141 296.797 17.623
202312 17.760 306.746 18.762
202412 22.147 315.605 22.740
202512 23.343 324.054 23.343

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of €8.95 mean?
Inspire Medical Systems (STU:2DR) has a Cyclically Adjusted Book per Share of €8.95 as of Mar. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Inspire Medical Systems and its competitors.
Is Inspire Medical Systems' Cyclically Adjusted Book per Share too high?
Inspire Medical Systems' current Cyclically Adjusted Book per Share is €8.95. Overall, Inspire Medical Systems has a GF Score™ of 56/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Inspire Medical Systems' Cyclically Adjusted Book per Share compare to ENOV and PRCT?
Inspire Medical Systems' Cyclically Adjusted Book per Share of €8.95 can be compared against companies in the Medical Devices & Instruments industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted Book per Share for a Medical Devices & Instruments company?
A good Cyclically Adjusted Book per Share depends on the Medical Devices & Instruments industry context. However, Cyclically Adjusted Book per Share 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 Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Inspire Medical Systems and its competitors. Inspire Medical Systems's current Cyclically Adjusted Book per Share is €8.95. 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 €188.24, compared to a current price of €40.80 — trading 78.3% below its estimated fair value. The current Cyclically Adjusted Book per Share is €8.95. Inspire Medical Systems' overall GF Score™ is 56/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Inspire Medical Systems (STU:2DR), the current Cyclically Adjusted Book per Share is €8.95 as of Mar. 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 €40.80 is trading 78.3% below its estimated GF Value™ of €188.24. GuruFocus considers Inspire Medical Systems to be Possible Value Trap.

Key valuation signals for STU:2DR:

  • Cyclically Adjusted Book per Share: €8.95
  • GF Value™: €188.24 vs. price of €40.80 (78.3% below fair value)
  • GF Score™: 56/100 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.
56GF Score

Get the complete analysis for STU:2DR

Cyclically Adjusted Book per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€40.80
Price
€188.24
GF Value