INSPInspire Medical Systems, Inc.
What is the market doing?
No clear lean: nothing decisive, though heavily shorted (+15% of shares).
Choppy, but holding above its 200-day average. Price is +6% vs its 200-day average.
Insiders were net sellers over the 90 days ending Oct 9, 2026; selling is often routine (taxes, diversification).
Heavily shorted, settled Sep 30, 2026, about a week of normal trading to cover. Up 6.8% since the previous count, down from 16.4% of shares outstanding three months ago.
Against the whole market›
Percentile against every name Ryufin tracks. Higher is better; the tick marks the middle of the market. Context, not one of the checks above.
Where this answer is blind. Insider selling is often routine (taxes, diversification); only cluster buying is a strong tell.
How INSP is trading
Inspire Medical Systems, Inc. is −14% over the past year while the S&P 500 is +18%: 32 points behind the market.
1-year return · S&P 500 +18%
- vs 200-day average
- +5.6%
vs 200-day average · close to trend
- RSI (14)
- 36
RSI (14) · neutral
- Below its 52-week high
- 52%
Below its 52-week high
Details›
- Last close2026-10-09
- $68.91
- 1 monthS&P 500 +2.7%
- +1.1%
- 1 yearS&P 500 +18%
- −14%
- 5 yearsS&P 500 +88%
- −71%
- vs 50-day average$64.83
- +6.3%
- 52-week high
- $143.99
- 52-week low
- $40.05
- Annualised volatility
- 66%
- Insider buying, net, 6 monthsForms 3/4/5 to 2026-10-09
- −$202K
| Year | Return |
|---|---|
| 2026 (year to date) | −25% |
| 2025 | −50% |
| 2024 | −8.9% |
| 2023 | −19% |
| 2022 | +9.5% |
| 2021 | +22% |
| 2020 | +153% |
| 2019 | +76% |
| Month | Years | Positive | Average |
|---|---|---|---|
| Jan | 8 | 6 of 8 | +2.7% |
| Feb | 8 | 5 of 8 | +3.1% |
| Mar | 8 | 2 of 8 | −8.5% |
| Apr | 8 | 5 of 8 | +5.0% |
| May | 8 | 3 of 8 | −9.1% |
| Jun | 9 | 6 of 9 | +3.3% |
| Jul | 9 | 6 of 9 | +7.8% |
| Aug | 9 | 6 of 9 | +6.9% |
| Sep | 9 | 4 of 9 | −4.1% |
| Oct | 9 | 2 of 9 | −2.6% |
| Nov | 8 | 5 of 8 | +20% |
| Dec | 8 | 5 of 8 | +1.9% |
End-of-day closes from IEX; the S&P 500 comparison uses SPY over the same window. Prices are a reference point, not a basis for trading decisions.