• If you are wondering whether Inspire Medical Systems at around US$51.58 is starting to look interesting, the key question is how its current price stacks up against its underlying worth.
• The share price has been under pressure, with a 0.9% decline over the last week, a 20.0% decline over the last month, and a 44.1% decline year to date, adding to a 67.4% decline over the past year and 77.2% and 75.1% declines over the past three and five years respectively.
• These returns have kept Inspire Medical Systems on many investors' watchlists, as such extended drawdowns can sometimes reflect changing expectations around growth, risk, or both. Recent coverage has focused less on short term headlines and more on how the current share price lines up with different measures of value.
• On Simply Wall St's 6 point valuation checklist, Inspire Medical Systems currently scores 5 out of 6. This sets up a closer look at how different valuation methods judge the stock today and hints at a more comprehensive way to think about value that will be covered at the end of this article.

Approach 1: Inspire Medical Systems Discounted Cash Flow (DCF) Analysis

A Discounted Cash Flow model projects a company’s future cash flows and then discounts them back to today’s value, aiming to estimate what the entire business could be worth right now.

For Inspire Medical Systems, the model used is a 2 Stage Free Cash Flow to Equity approach, based on cash flow projections in $. The latest twelve month Free Cash Flow is about $77.5 million. Analyst inputs and Simply Wall St extrapolations suggest annual Free Cash Flow figures in the range of roughly $150 million to $162 million on a discounted basis over the next several years, with a ten year projection that reaches a discounted $109.6 million by 2035.

When all of these discounted cash flows are added together, the DCF model points to an estimated intrinsic value of about $138.40 per share. Compared with the recent share price of around $51.58, this implies the stock is 62.7% undervalued according to this specific set of assumptions.

Result: UNDERVALUED

Our Discounted Cash Flow (DCF) analysis suggests Inspire Medical Systems is undervalued by 62.7%. Track this in your watchlist or portfolio, or discover 58 more high quality undervalued stocks.

Approach 2: Inspire Medical Systems Price vs Earnings

For profitable companies, the P/E ratio is a useful way to think about value because it links what you pay directly to the earnings the business is already generating. The level of P/E the market is usually comfortable with tends to reflect expectations for future growth and the risk investors see in those earnings, so a higher growth and lower risk profile can often support a higher “normal” P/E.

Inspire Medical Systems currently trades on a P/E of 10.21x. That sits well below the Medical Equipment industry average P/E of 27.51x and also below the peer group average of 75.17x. Simply Wall St’s Fair Ratio for Inspire Medical Systems is 14.96x, which is its proprietary estimate of what a more suitable P/E might be after considering factors like earnings growth, profit margins, industry, market cap and company specific risks.

Compared with simple peer or industry comparisons, the Fair Ratio aims to be more tailored because it adjusts for those company characteristics rather than assuming all firms deserve the same multiple. With the current P/E of 10.21x sitting below the Fair Ratio of 14.96x, the multiple based view suggests the shares are trading at a discount to this Fair Ratio benchmark.

Result: UNDERVALUED

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Upgrade Your Decision Making: Choose your Inspire Medical Systems Narrative

Earlier it was mentioned that there is an even better way to think about value. On Simply Wall St this comes through Narratives, which are simple stories that you and other investors build around Inspire Medical Systems. You do this by linking assumptions for future revenue, earnings and margins to a Fair Value, then comparing that Fair Value with the current price so you can decide whether the share price looks high or low relative to your view. All of this is available within an easy tool on the Community page that updates as new news or earnings arrive. This means one investor might align with a cautious Fair Value of US$60.00, while another leans toward a much higher Fair Value of about US$211.69, and both perspectives can coexist transparently on the same platform.

Do you think there's more to the story for Inspire Medical Systems? Head over to our Community to see what others are saying!

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.