NYSE · INSP · stock
Inspire Medical Systems, Inc. (INSP) stock price history
Every NYSE trading session of Inspire Medical Systems, Inc. from May 3, 2018 to Sep 28, 2026: 2,112 daily bars, adjusted for splits and dividends, with minute bars from Jul 13, 2026 forward. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.
INSP adjusted close, 2018 to 2026
- $326.08
- All time high, 2023
- $147.03
- 52 week high, $38.91 low
- 2,112
- Daily sessions since 2018
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2018 to 2026 series and minute bars.
INSP key facts
- Inspire Medical Systems, Inc. (INSP) closed at $70.00 on Sep 28, 2026 on NYSE.
- INSP's all time high close is $326.08, set on Jul 14, 2023; its all time low close is $24.05 on May 7, 2018.
- INSP's 52 week range is $38.91 to $147.03.
- INSP returned -9.4% over the year to Sep 28, 2026 and -69.3% over five years.
- Since May 3, 2018 INSP returned +180%, +13.0% a year compounded.
- INSP's deepest drawdown was -87.7% from Jul 14, 2023 to May 15, 2026.
- DataCedar holds 2,112 daily sessions of INSP history from May 3, 2018 and minute bars from Jul 13, 2026, adjusted for splits and dividends, served by the API under a key.
INSP price chart, 2018 to 2026
INSP returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +13.9% |
| 3 months | +53.1% |
| 6 months | +39.6% |
| Year to date | -24.4% |
| 1 year | -9.4% |
| 3 years | -65.1% |
| 5 years | -69.3% |
| 10 years | n/a |
| Since May 3, 2018 | +180.2% |
| Compound annual growth, 8.4 years | +13.0% |
INSP records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- $326.08 on Jul 14, 2023
- All time low close
- $24.05 on May 7, 2018
- 52 week high
- $147.03 on Dec 10, 2025
- 52 week low
- $38.91 on Jun 3, 2026
- Deepest drawdown
- -87.7% from Jul 14, 2023 to May 15, 2026, not yet recovered
- Best single session
- +31.8% on Nov 3, 2020
- Worst single session
- -33.5% on May 8, 2024
- Volatility, 1 year annualised
- 69.6%
- Sessions closing higher, 1 year
- 49%
- Growth of 1 since 2018
- 2.8×
- Best calendar year
- 2020, +153%
- Worst calendar year
- 2025, -50%
INSP price history by year
Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 2018 starts on May 3, 2018; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | $92.53 | $102.64 | $38.91 | $70.00 | -24.1% | 198.8M | 185 |
| 2025 | $187.73 | $216.01 | $70.77 | $92.23 | -50.2% | 233.9M | 250 |
| 2024 | $184.57 | $257.40 | $123.00 | $185.38 | -8.9% | 146.7M | 252 |
| 2023 | $256.00 | $330.00 | $123.27 | $203.43 | -19.2% | 127.4M | 250 |
| 2022 | $230.60 | $272.04 | $142.74 | $251.88 | +9.5% | 73.2M | 251 |
| 2021 | $184.56 | $286.29 | $159.18 | $230.06 | +22.3% | 59M | 252 |
| 2020 | $74.42 | $204.72 | $40.53 | $188.09 | +153.5% | 90.6M | 253 |
| 2019 | $41.61 | $75.91 | $38.68 | $74.21 | +75.6% | 72.6M | 252 |
| 2018 | $24.49 | $57.87 | $22.50 | $42.25 | n/a | 37.8M | 167 |
INSP monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | $70.00 | +11.1% |
| August 2026 | $62.99 | +25.5% |
| July 2026 | $50.21 | +12.6% |
| June 2026 | $44.61 | +7.9% |
| May 2026 | $41.36 | -26.3% |
| April 2026 | $56.14 | +8.8% |
| March 2026 | $51.58 | -20.0% |
| February 2026 | $64.51 | -14.9% |
| January 2026 | $75.78 | -17.8% |
| December 2025 | $92.23 | -25.9% |
| November 2025 | $124.41 | +72.6% |
| October 2025 | $72.08 | -2.9% |
About the INSP data
Daily bars. 2,112 sessions from May 3, 2018 to Sep 28, 2026, one row per NYSE trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.
Minute bars. Stored from Jul 13, 2026 forward, most recent session Sep 28, 2026. Minute history is captured from the day collection began and is never backfilled, so this start date is exact. Five minute, fifteen minute and hourly bars are derived from these minutes.
Time and currency. Session dates are NYSE trading days; minute timestamps are UTC. Prices are in USD. Volume is shares traded on the session.
Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to May 3, 2018, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.
curl "https://api.datacedar.com/v3/stocks/INSP/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on NYSE
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Common questions
INSP share price history
