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INSP
$71.34+1.70%
as of close, Oct 20, 2026
☾ AH $71.34 +1.70%
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Inspire Medical Systems Inc. monthly returns

Inspire Medical Systems Inc. has averaged 1.95% per month, positive in 55% of months. Month-by-month returns for Inspire Medical Systems Inc. (INSP) below, through October 20, 2026 — the table lists the most recent months; the bar chart plots the last 5 years.

Average month
+2.0%
94 months
Best month
+72.6%
Nov 2025
Worst month
-34.3%
May 2024
Positive months
55%
of all months

Inspire Medical Systems Inc. monthly returns#

Inspire Medical Systems Inc. total return by month
MonthTotal return
Oct 2026
+2.9%
Sep 2026
+10.1%
Aug 2026
+25.5%
Jul 2026
+12.6%
Jun 2026
+7.9%
May 2026
-26.3%
Apr 2026
+8.8%
Mar 2026
-20.0%
Feb 2026
-14.9%
Jan 2026
-17.8%
Dec 2025
-25.9%
Nov 2025
+72.6%
Oct 2025
-2.9%
Sep 2025
-20.8%
Aug 2025
-24.8%
Jul 2025
-4.0%
Jun 2025
-6.1%
May 2025
-12.7%
Apr 2025
-0.6%
Mar 2025
-14.2%
Feb 2025
-4.1%
Jan 2025
+4.4%
Dec 2024
-3.8%
Nov 2024
-1.2%
Oct 2024
-7.6%
Sep 2024
+17.4%
Aug 2024
+27.5%
Jul 2024
+5.4%
Jun 2024
-15.7%
May 2024
-34.3%
Apr 2024
+12.5%
Mar 2024
+20.0%
Feb 2024
-15.1%
Jan 2024
+3.7%
Dec 2023
+40.0%
Nov 2023
-1.3%
Oct 2023
-25.8%
Sep 2023
-12.5%
Aug 2023
-21.2%
Jul 2023
-11.3%
Jun 2023
+11.0%
May 2023
+9.3%
Apr 2023
+14.3%
Mar 2023
-9.9%
Feb 2023
+2.7%
Jan 2023
+0.5%
Dec 2022
+4.3%
Nov 2022
+23.9%
Oct 2022
+9.9%
Sep 2022
-7.4%
Aug 2022
-8.4%
Jul 2022
+14.4%
Jun 2022
+3.3%
May 2022
-14.1%
Apr 2022
-19.8%
Mar 2022
+5.2%
Feb 2022
+10.3%
Jan 2022
-3.8%
Dec 2021
+3.0%
Nov 2021
-17.2%
Oct 2021
+15.8%
Sep 2021
+4.2%
Aug 2021
+22.1%
Jul 2021
-5.2%
Jun 2021
-0.5%
May 2021
-18.0%
Apr 2021
+14.4%
Mar 2021
-11.1%
Feb 2021
+15.5%
Jan 2021
+7.1%
Dec 2020
+1.3%
Nov 2020
+55.5%
Oct 2020
-7.5%
Sep 2020
+8.0%
Aug 2020
+20.2%
Jul 2020
+14.2%
Jun 2020
+6.7%
May 2020
+13.8%
Apr 2020
+18.9%
Mar 2020
-29.8%
Feb 2020
+14.8%
Jan 2020
+0.8%
Dec 2019
+4.6%
Nov 2019
+16.4%
Oct 2019
-0.1%
Sep 2019
-12.2%
Aug 2019
+2.8%
Jul 2019
+11.5%
Jun 2019
+7.4%
May 2019
+9.2%
Apr 2019
-9.0%
Mar 2019
-8.4%
Feb 2019
+15.6%
Jan 2019
+26.9%
Dec 2018
-8.0%
Nov 2018
+14.6%
Oct 2018
-4.8%
Sep 2018
-23.5%
Aug 2018
+22.7%
Jul 2018
+25.6%
Jun 2018
+18.9%

Monthly total return (since Nov 2021)#

Inspire Medical Systems Inc. returns by calendar month#

Every month of every year since 2019, one tick per year on a shared scale; the dark bar is the month's average. Total returns, dividends reinvested.

October 2026 so far: +2.85% — 3rd of 8 Octobers since 2019 at the last close; the average October returned -2.6%.

Inspire Medical Systems Inc. returns by calendar month since 2019
Month−75%0+75%AverageUp
Jan+2.7%75%
Feb+3.1%63%
Mar-8.5%25%
Apr+5.0%63%
May-9.1%38%
Jun+1.7%63%
Jul+4.7%63%
Aug+5.5%63%
Sep-1.7%50%
OctOctober 2026 so far: +2.9%-2.6%29%
Nov+21.3%57%
Dec+3.4%71%

Methodology#

Monthly returns are total returns (dividends reinvested), computed from INSP's split- and dividend-adjusted month-end closes. The table shows the most recent 120 months and the bar chart the most recent 60. See the year-by-year returns for the annual view. Past performance does not predict future returns; not investment advice.

FAQ#

What is Inspire Medical Systems Inc.'s average monthly return?
Inspire Medical Systems Inc. (INSP) has averaged about 1.95% per month, positive in roughly 55% of months. The best month was Nov 2025 (+72.6%) and the worst was May 2024 (-34.3%).

More on Inspire Medical Systems Inc.