Inspire Medical Systems, Inc. (INSP) stock
INSPNYSESurgical & Medical Instruments & ApparatusFiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 3, 2026Score 17/3032% below fair value
$68.10−3.08 (-4.33%)
Close on Oct 30, 2026Market cap $1.97BP/E 14.7Yield –
Price history
Inspire Medical Systems share prices for every month, newest first. Adjusted for stock splits, not for dividends.
Close, Oct 30, 2026
$68.10
-4.33% on the day
52-week range
$38.91 – $147.03
-53.7% from the high
Change over 52 weeks
-6.8%
From $73.07 on Oct 30, 2025
Average volume
854,208
Shares a day, last 90 sessions
| Month | Open | High | Low | Close | Change | Volume |
|---|---|---|---|---|---|---|
| Oct 2026 | $70.50 | $75.31 | $66.07 | $68.10 | -1.82% | 17,890,209 |
| Sep 2026 | $63.00 | $78.80 | $60.00 | $69.36 | +10.11% | 17,927,799 |
| Aug 2026 | $51.21 | $66.21 | $51.21 | $62.99 | +25.45% | 13,783,290 |
| Jul 2026 | $45.21 | $53.50 | $45.21 | $50.21 | +12.55% | 19,817,798 |
| Jun 2026 | $41.24 | $46.10 | $38.91 | $44.61 | +7.86% | 22,821,232 |
| May 2026 | $56.05 | $57.91 | $39.61 | $41.36 | -26.33% | 29,941,491 |
| Apr 2026 | $51.71 | $58.98 | $50.70 | $56.14 | +8.84% | 19,801,594 |
| Mar 2026 | $63.00 | $66.50 | $48.30 | $51.58 | -20.04% | 20,976,540 |
| Feb 2026 | $75.05 | $86.00 | $53.11 | $64.51 | -14.87% | 30,167,750 |
| Jan 2026 | $92.53 | $102.65 | $74.99 | $75.78 | -17.84% | 25,400,535 |
| Dec 2025 | $124.52 | $147.03 | $89.94 | $92.23 | -25.87% | 42,262,498 |
| Nov 2025 | $72.06 | $138.80 | $71.45 | $124.41 | +72.60% | 32,344,180 |
| Oct 2025 | $74.56 | $84.23 | $70.77 | $72.08 | -2.86% | 22,761,736 |
| Sep 2025 | $94.10 | $97.25 | $72.66 | $74.20 | -20.80% | 23,026,713 |
| Aug 2025 | $124.74 | $131.56 | $73.92 | $93.69 | -24.77% | 35,279,632 |
| Jul 2025 | $129.21 | $143.96 | $124.37 | $124.54 | -4.03% | 12,699,722 |
| Jun 2025 | $138.13 | $140.52 | $125.22 | $129.77 | -6.10% | 11,541,157 |
| May 2025 | $158.91 | $163.35 | $133.33 | $138.20 | -12.74% | 11,815,185 |
| Apr 2025 | $159.24 | $164.02 | $132.69 | $158.38 | -0.57% | 9,605,584 |
| Mar 2025 | $185.60 | $189.49 | $151.82 | $159.28 | -14.18% | 9,151,115 |
| Feb 2025 | $188.82 | $203.12 | $170.02 | $185.59 | -4.09% | 11,456,954 |
| Jan 2025 | $187.73 | $216.01 | $168.73 | $193.50 | +4.38% | 12,227,190 |
| Dec 2024 | $193.07 | $198.33 | $179.21 | $185.38 | -3.83% | 9,174,852 |
| Nov 2024 | $195.28 | $214.17 | $170.23 | $192.76 | -1.17% | 12,373,563 |
| Oct 2024 | $210.74 | $214.97 | $187.59 | $195.04 | -7.59% | 8,747,732 |
| Sep 2024 | $178.26 | $225.00 | $176.07 | $211.05 | +17.37% | 17,101,331 |
| Aug 2024 | $141.82 | $199.67 | $139.50 | $179.82 | +27.49% | 13,208,956 |
| Jul 2024 | $133.24 | $147.68 | $123.00 | $141.05 | +5.39% | 11,438,264 |
| Jun 2024 | $158.29 | $173.78 | $129.95 | $133.83 | -15.72% | 13,894,940 |
| May 2024 | $240.76 | $257.40 | $150.38 | $158.79 | -34.29% | 17,322,799 |
| Apr 2024 | $213.99 | $250.68 | $200.68 | $241.66 | +12.51% | 11,694,918 |
| Mar 2024 | $179.44 | $223.40 | $177.17 | $214.79 | +19.97% | 8,107,124 |
| Feb 2024 | $212.23 | $226.38 | $177.07 | $179.04 | -15.09% | 11,585,398 |
| Jan 2024 | $184.57 | $218.36 | $163.57 | $210.87 | +3.66% | 12,119,696 |
| Dec 2023 | $145.15 | $206.89 | $143.29 | $203.43 | +40.00% | 13,931,151 |
| Nov 2023 | $145.86 | $173.36 | $123.27 | $145.31 | -1.26% | 18,395,414 |
| Oct 2023 | $198.31 | $200.31 | $143.81 | $147.16 | -25.84% | 15,590,902 |
| Sep 2023 | $230.45 | $244.03 | $183.10 | $198.44 | -12.54% | 11,820,764 |
| Aug 2023 | $285.00 | $291.98 | $209.41 | $226.88 | -21.17% | 14,767,242 |
| Jul 2023 | $322.09 | $330.00 | $281.31 | $287.81 | -11.34% | 7,027,712 |
| Jun 2023 | $293.34 | $327.77 | $292.22 | $324.64 | +10.99% | 10,829,723 |
| May 2023 | $265.92 | $314.36 | $250.10 | $292.49 | +9.29% | 8,897,848 |
| Apr 2023 | $234.00 | $277.18 | $223.21 | $267.63 | +14.34% | 6,633,466 |
| Mar 2023 | $260.50 | $267.31 | $224.42 | $234.07 | -9.95% | 7,713,854 |
| Feb 2023 | $251.96 | $282.31 | $238.83 | $259.93 | +2.71% | 6,997,388 |
| Jan 2023 | $256.00 | $260.90 | $237.50 | $253.06 | +0.47% | 4,848,727 |
| Dec 2022 | $242.01 | $262.54 | $225.62 | $251.88 | +4.27% | 5,978,166 |
| Nov 2022 | $198.25 | $241.69 | $190.61 | $241.57 | +23.91% | 7,551,850 |
| Oct 2022 | $180.36 | $197.28 | $159.62 | $194.95 | +9.91% | 6,561,258 |
| Sep 2022 | $188.66 | $212.12 | $164.49 | $177.37 | -7.37% | 6,160,427 |
| Aug 2022 | $206.51 | $231.41 | $190.20 | $191.49 | -8.37% | 6,563,904 |
| Jul 2022 | $183.42 | $212.37 | $182.65 | $208.99 | +14.41% | 3,811,947 |
| Jun 2022 | $178.58 | $202.54 | $157.04 | $182.67 | +3.30% | 6,152,929 |
| May 2022 | $206.11 | $220.77 | $142.74 | $176.83 | -14.06% | 8,751,483 |
| Apr 2022 | $259.46 | $272.04 | $199.66 | $205.76 | -19.84% | 4,984,986 |
| Mar 2022 | $243.45 | $263.83 | $194.67 | $256.69 | +5.17% | 5,156,337 |
| Feb 2022 | $222.52 | $246.39 | $206.58 | $244.06 | +10.29% | 5,647,411 |
| Jan 2022 | $230.60 | $255.96 | $189.24 | $221.29 | -3.81% | 5,866,149 |
| Dec 2021 | $227.25 | $240.00 | $198.01 | $230.06 | +3.04% | 5,516,106 |
| Nov 2021 | $269.32 | $286.29 | $220.87 | $223.27 | -17.18% | 4,302,542 |
| Oct 2021 | $233.11 | $272.15 | $227.62 | $269.58 | +15.76% | 3,032,527 |
| Sep 2021 | $225.21 | $264.40 | $221.99 | $232.88 | +4.17% | 4,810,657 |
| Aug 2021 | $182.90 | $227.80 | $178.41 | $223.56 | +22.06% | 6,090,751 |
| Jul 2021 | $195.00 | $203.27 | $159.18 | $183.16 | -5.23% | 6,113,966 |
| Jun 2021 | $194.61 | $201.52 | $160.94 | $193.26 | -0.54% | 5,320,249 |
| May 2021 | $238.78 | $241.45 | $160.02 | $194.30 | -17.95% | 5,431,123 |
| Apr 2021 | $210.75 | $244.89 | $200.43 | $236.82 | +14.41% | 3,208,428 |
| Mar 2021 | $237.46 | $252.25 | $185.16 | $206.99 | -11.08% | 6,001,450 |
| Feb 2021 | $203.71 | $239.40 | $195.08 | $232.79 | +15.52% | 3,933,782 |
| Jan 2021 | $184.56 | $229.49 | $179.62 | $201.51 | +7.13% | 5,010,821 |
| Dec 2020 | $188.18 | $204.72 | $181.88 | $188.09 | +1.27% | 7,184,651 |
| Nov 2020 | $120.54 | $187.94 | $118.75 | $185.74 | +55.52% | 6,877,547 |
| Oct 2020 | $131.00 | $135.20 | $115.00 | $119.43 | -7.45% | 4,376,053 |
| Sep 2020 | $118.98 | $132.69 | $110.06 | $129.05 | +8.04% | 8,409,641 |
| Aug 2020 | $100.39 | $120.33 | $99.41 | $119.45 | +20.22% | 6,324,787 |
| Jul 2020 | $87.14 | $105.54 | $85.03 | $99.36 | +14.18% | 5,315,023 |
| Jun 2020 | $82.00 | $99.26 | $80.00 | $87.02 | +6.72% | 9,477,791 |
| May 2020 | $70.79 | $88.10 | $65.25 | $81.54 | +13.79% | 7,146,139 |
| Apr 2020 | $57.54 | $79.63 | $46.08 | $71.66 | +18.88% | 9,889,070 |
| Mar 2020 | $86.35 | $91.35 | $40.53 | $60.28 | -29.80% | 13,071,199 |
| Feb 2020 | $75.10 | $95.00 | $73.24 | $85.87 | +14.80% | 8,059,696 |
| Jan 2020 | $74.42 | $83.71 | $71.10 | $74.80 | +0.80% | 5,150,008 |
| Dec 2019 | $70.76 | $75.91 | $68.38 | $74.21 | +4.58% | 3,752,424 |
| Nov 2019 | $61.23 | $72.31 | $59.41 | $70.96 | +16.37% | 4,595,103 |
| Oct 2019 | $60.81 | $62.23 | $51.98 | $60.98 | -0.07% | 6,386,787 |
| Sep 2019 | $68.83 | $70.67 | $60.10 | $61.02 | -12.21% | 5,165,855 |
| Aug 2019 | $67.66 | $71.71 | $58.56 | $69.51 | +2.78% | 6,112,204 |
| Jul 2019 | $61.59 | $69.71 | $60.74 | $67.63 | +11.51% | 5,824,746 |
| Jun 2019 | $56.30 | $61.45 | $52.34 | $60.65 | +7.40% | 6,784,792 |
| May 2019 | $51.92 | $57.36 | $48.00 | $56.47 | +9.25% | 6,408,533 |
| Apr 2019 | $57.07 | $58.54 | $46.00 | $51.69 | -8.96% | 6,049,737 |
| Mar 2019 | $60.97 | $61.00 | $51.66 | $56.78 | -8.42% | 8,899,293 |
| Feb 2019 | $53.50 | $64.34 | $51.64 | $62.00 | +15.61% | 5,447,262 |
| Jan 2019 | $41.61 | $56.80 | $38.68 | $53.63 | +26.93% | 7,489,489 |
| Dec 2018 | $47.09 | $49.00 | $35.43 | $42.25 | -8.03% | 6,700,739 |
| Nov 2018 | $40.37 | $54.51 | $39.00 | $45.94 | +14.62% | 4,588,682 |
| Oct 2018 | $42.63 | $45.66 | $37.01 | $40.08 | -4.75% | 2,907,522 |
| Sep 2018 | $55.30 | $57.87 | $41.00 | $42.08 | -23.48% | 2,920,152 |
| Aug 2018 | $44.98 | $55.43 | $43.59 | $54.99 | +22.75% | 3,830,421 |
| Jul 2018 | $35.60 | $47.26 | $35.35 | $44.80 | +25.63% | 3,521,080 |
| Jun 2018 | $29.90 | $41.01 | $28.87 | $35.66 | +18.87% | 6,324,687 |
| May 2018 | $24.49 | $34.60 | $22.50 | $30.00 | – | 7,047,849 |
Seasonality
INSP return in each calendar month over the last 9 years, including dividends. The current month runs to the latest close.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average | 2.7% | 3.1% | -8.5% | 5.0% | -9.1% | 3.6% | 7.0% | 7.4% | -4.1% | -2.7% | 20.4% | 1.9% |
| Months up | 6 of 8 | 5 of 8 | 2 of 8 | 5 of 8 | 3 of 8 | 6 of 9 | 6 of 9 | 6 of 9 | 4 of 9 | 2 of 9 | 5 of 8 | 5 of 8 |
| 2026 | -17.8% | -14.9% | -20.0% | 8.8% | -26.3% | 7.9% | 12.6% | 25.5% | 10.1% | -1.8% | ||
| 2025 | 4.4% | -4.1% | -14.2% | -0.6% | -12.7% | -6.1% | -4.0% | -24.8% | -20.8% | -2.9% | 72.6% | -25.9% |
| 2024 | 3.7% | -15.1% | 20.0% | 12.5% | -34.3% | -15.7% | 5.4% | 27.5% | 17.4% | -7.6% | -1.2% | -3.8% |
| 2023 | 0.5% | 2.7% | -9.9% | 14.3% | 9.3% | 11.0% | -11.3% | -21.2% | -12.5% | -25.8% | -1.3% | 40.0% |
| 2022 | -3.8% | 10.3% | 5.2% | -19.8% | -14.1% | 3.3% | 14.4% | -8.4% | -7.4% | 9.9% | 23.9% | 4.3% |
| 2021 | 7.1% | 15.5% | -11.1% | 14.4% | -18.0% | -0.5% | -5.2% | 22.1% | 4.2% | 15.8% | -17.2% | 3.0% |
| 2020 | 0.8% | 14.8% | -29.8% | 18.9% | 13.8% | 6.7% | 14.2% | 20.2% | 8.0% | -7.5% | 55.5% | 1.3% |
| 2019 | 26.9% | 15.6% | -8.4% | -9.0% | 9.2% | 7.4% | 11.5% | 2.8% | -12.2% | -0.1% | 16.4% | 4.6% |
| 2018 | 18.9% | 25.6% | 22.7% | -23.5% | -4.8% | 14.6% | -8.0% |