INSP Stock — Inspire Medical Systems Inc.

Inspire Medical Systems Inc. (INSP)

Updated October 16, 2026.

INSP is a Stock. Total return is 175.4% over the past 8.5 years, 55.2 points behind SPY at 230.6%.

Inspire Medical Systems is a medical technology company that develops and commercializes minimally invasive neurostimulation treatments for obstructive sleep apnea, primarily in the United States. The company's flagship Inspire system uses mild hypoglossal nerve stimulation to maintain open airways in patients with moderate to severe OSA. This equity security does not currently have an established distribution program, making it suitable for growth-oriented investors rather than those seeking regular income.

INSP performance versus SPY

Price and return data through 2026-10-16.

Total return is 175.4% over the past 8.5 years, 55.2 points behind SPY at 230.6%. Over the past year its total return — price change plus distributions reinvested — is -11.1%. Its deepest 1-year drawdown was 72.2%.

INSP key facts

Asset type

Stock

Asset class

Equity

Inception date

05/03/2018

Distribution frequency

None

Last close

$68.79 (as of 2026-10-16)

Market cap

$1,988,744,696

Average volume

414140.0

Beta

0.703

Payout ratio

0.0%

P/E ratio

15.19

Forward P/E

59.1716

EPS

$4.53

How Dividend Vision calculates yield and returns

Distribution rate (the posted rate) uses calculation basis unavailable. Issuer rates can use a different denominator and date, including ex-date NAV. Trailing-12-month yield is the sum of split-adjusted cash distributions with ex-dates in the last 12 months, divided by the published price. It lags a recent raise or cut. Total return uses split-adjusted close with distributions reinvested on the ex-dividend date (a modeling convention, not the cash-settlement date) from the first stored bar on or after inception through the latest bar, compared with the same window on the benchmark. That is the security's total return, not your personal gain/loss.

Yield and safety methodology · Distribution rate methodology · Distribution Safety Score methodology

Sources and review

Primary sources: prices and distributions from Dividend Vision, derived from vendor EOD data.

Reviewed by Bert Sweet, CEO and Co-owner of Dividend Vision. Methodology: Distribution Safety Score.

INSP risks and drawbacks

Total return has trailed SPY over the available window. The deepest 1-year drawdown on record here is 72.2%.

Who may consider INSP — and who may not

It is a weaker fit for investors who need monthly cash flow (INSP does not currently distribute); investors whose main goal is matching SPY total return. This is educational context, not a recommendation to buy or sell.

More on INSP

• All tickers starting with I

Tagged: Healthcare.

Frequently asked questions