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NYSE · INSPHealthcareSurgical Instruments

Inspire Medical Systems, Inc. (INSP)

$66.61+7.61%
Close Nov 4, 2026 · split-adjusted
Nov 4, 2026$66.61▼ 21.64% in range
Nov 4, 2025Low $40.05 · High $143.99Nov 4, 2026
What changed · written from our data
As of Nov 4, 2026

Inspire Medical Systems closed at $66.61 on Nov 4, up 7.61%, 53.7% below its 52-week closing high. Volume of 862.1K shares was 1.06× its 20-day average (close to normal).

Split-adjusted performance: -2.3% over one month, +45.8% over six months, -9.6% over one year.

In the quarter ended Sep 30, 2026, revenue was $206.69M, down 7.9% from a year earlier, with a net margin of -11.8%.

Short interest was 4.5M shares at the Oct 15 settlement, up 7.1% from the prior report (15.9% of float, 4.5 days to cover).

Market cap$1.93B28.9M shares
Revenue · quarter$206.7M−7.9% YoY
Diluted EPS$-0.84−347.1% YoY
P/E · TTM19.1×P/S 2.2×
Net margin-11.8%Gross 86.0%
Dividend yieldNone
52-week range40.05 – 143.99−53.7% from high
Volume862.1K1.06× 20-day avg
Volatility · 60d48.8%Annualised
Short % of float15.9%4.5 days to cover
Net cash$328.0MCash $328.0M
Next earnings—Not scheduled
Split-adjusted performance
1W −6.1%1M −2.3%3M +13.1%6M +45.8%YTD −27.8%1Y −9.6%3Y −54.3%5Y −74.3%

Earnings reactions

History →

No reported quarters with price history yet.

Rank within Surgical Instruments

Percentile among 110 companies (100 = best)

6-month momentum80
Revenue growth12
Net margin45
Value (low P/E)73
Size77

Industry medians: 6-month return −4.0%, revenue growth +8.9%, net margin −8.2%, P/E 30.5×.

Short interest

Details →
Shares short4.5M+7.1% vs prior
Days to cover4.5Settled Oct 15
% of float15.9%
Short vol. 10d47.5%of daily volume

Closest peers by size in Surgical Instruments

CompanyPriceToday6MRev. growthNet marginP/EMkt cap
INSPInspire Medical Systems$66.61+7.61%+45.8%−7.9%−11.8%19.1$1.93B
LMATLeMaitre Vascular$87.92+9.08%−20.2%+9.6%24.2%30.6$2.01BCompare
KMTSKestra Medical Technologies$30.50+5.14%+47.3%+59.9%−142.3%—$1.82BCompare
NVCRNovoCure Limited$14.61+8.79%−11.4%+15.7%−5.4%—$1.71BCompare
UFPTUFP Technologies$329.82+17.66%+51.2%+15.1%12.0%35.3$2.55BCompare
TNDMTandem Diabetes Care$19.05+7.93%+5.7%+5.8%−8.3%—$1.33BCompare
AORTArtivion$26.45+11.56%−23.8%+11.3%−10.7%—$1.29BCompare
ATECAlphatec Holdings$8.28+10.84%+18.5%+12.6%−2.5%—$1.27BCompare
PRCTPROCEPT BioRobotics$21.66+7.39%−12.7%+19.3%−28.4%—$1.24BCompare

News about Inspire Medical Systems

All news →
Inspire Medical Systems (INSP) Q3 Earnings and Revenues Beat EstimatesZacks Investment Research · 2d ago▼ NegativeHere's What Key Metrics Tell Us About Inspire (INSP) Q3 EarningsZacks Investment Research · 2d ago▼ NegativeINSP Stock Gains 47.8% in Three Months: What's Driving the Rally?Zacks Investment Research · Oct 23, 2026▲ PositiveHere's Why You Should Retain INSP Stock in Your Portfolio for NowZacks Investment Research · Sep 23, 2026NeutralWhy Is Inspire (INSP) Down 4.1% Since Last Earnings Report?Zacks Investment Research · Sep 2, 2026Neutral

Quick answers

What does Inspire Medical Systems do?
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).
What is INSP's market cap?
$1.93B, based on the Nov 4 close of $66.61.
What is INSP's P/E ratio?
19.1× trailing-twelve-month earnings of $100.72M.
Does Inspire Medical Systems pay a dividend?
No regular cash dividend has been paid in the last year.
How much of INSP is sold short?
4.5M shares, 15.9% of float, as of Oct 15, 2026.
What sector is INSP in?
Healthcare, in the Surgical Instruments industry.

About Inspire Medical Systems

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.

HQ: Golden Valley, MN1,333 employeesListed May 3, 2018inspiresleep.com

Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology