Stocks · Healthcare · Medical - Devices
Inspire Medical Systems, Inc. INSP
$70.75 +1.11% Close, Oct 5, 2026 · NYSE · Market cap $2.02B
High qualityInexpensive vs sector
Next earnings report: Nov 2, 2026
Scroll or pinch to zoom, drag to move. Daily prices adjusted for splits. Markers: E = earnings (green beat, red miss), S = split, D = dividend.
Three things to know
- Diluted EPS over the last four quarters was $4.62, up 167.3% year over year.
- Earnings beat analyst estimates in each of the last 14 quarters (average surprise over the last four: +100.0%).
- The stock is 51% below its highest close of the past year.
PromtFinance scores
Each score is a percentile within the Healthcare sector (0–100). Under each score: how the stock ranks in its sector on every component. As of Oct 6, 2026.
How fast revenue, earnings and cash flow are growing.
- Revenue growth (TTM, YoY)Bottom 38%
- EPS growth (TTM, YoY)Top 9%
- FCF growth (TTM, YoY)Top 36%
- Revenue growth, 3-year CAGRTop 21%
- Revenue growth accelerationBottom 27%
Returns on capital, margins, earnings quality and balance-sheet strength.
- Return on invested capitalTop 21%
- Gross marginTop 23%
- Operating marginTop 33%
- Cash conversion (OCF / net income)Bottom 28%
- Accruals (lower is better)Bottom 26%
- Net debt / EBITDA (lower is better)Top 18%
- Interest coverTop 2%
How cheap the shares are relative to earnings, cash flow and their own history.
- Earnings yieldTop 6%
- Free-cash-flow yieldTop 16%
- EBITDA / enterprise valueTop 25%
- Sales / enterprise valueTop 27%
- P/E vs own 5-year history (lower is better)Top 38%
Strength and persistence of the price trend, including versus the S&P 500.
- 12-month return excluding last monthBottom 27%
- 6-month returnTop 33%
- 1-year return vs S&P 500Bottom 40%
- Distance from 52-week highBottom 26%
- Trend checklist (0–4)Top 26%
Earnings surprises and analyst sentiment (estimate-revision history is being collected).
- Average EPS surprise, last 4 quartersTop 4%
- Consecutive EPS beatsTop 2%
- Share of analysts rating BuyBottom 11%
- Upside to consensus price targetBottom 6%
Low volatility, shallow drawdowns, low market sensitivity and modest leverage.
- Volatility, 60 days (lower is better)Bottom 36%
- Maximum drawdown, 3 yearsBottom 26%
- Beta vs S&P 500 (lower is better)Top 38%
- Net debt / EBITDA (lower is better)Top 18%
What changed
Latest four quarters versus the same period a year earlier (growth: versus one quarter earlier).
| Measure | Before | Now | |
|---|---|---|---|
| Revenue growth (YoY) | 8.9% | 4.3% | ↓ |
| EPS growth (YoY) | 107.0% | 167.3% | ↑ |
| Gross margin | 84.5% | 86.1% | ↑ |
| Operating margin | 4.8% | 6.0% | ↑ |
| FCF margin | 9.9% | 13.0% | ↑ |
Fundamental momentum
| Measure | Now (TTM) | Year / quarter before | Sector rank | |
|---|---|---|---|---|
| Revenue growth (TTM, YoY) | 4.3% | 8.9% | ↓ | Bottom 38% |
| EPS growth (TTM, YoY) | 167.3% | 107.0% | ↑ | Top 9% |
| Gross margin | 86.1% | 84.5% | ↑ | Top 23% |
| Operating margin | 6.0% | 4.8% | ↑ | Top 33% |
| Net margin | 15.0% | 6.2% | ↑ | — |
| Free-cash-flow margin | 13.0% | 9.9% | ↑ | — |
| Return on invested capital | 6.3% | — | Top 21% | |
| Revenue growth, 3-year CAGR | 30.8% | — | Top 21% |
Quality of earnings and balance sheet
- Cash conversion (OCF / net income)Above 1× means profits are backed by cash.
- 1.16×
- Accruals (net income − OCF) / assetsLower is better; high accruals can signal weaker earnings quality.
- -2.4%
- Stock-based compensation / revenueA cost to shareholders through dilution.
- 13.3%
- Receivables growth vs revenue growthReceivables growing much faster than sales can be a warning.
- -29.3 pp
- Net debt / EBITDABelow 1× is conservative; above 3× is high leverage.
- -1.19×
- Interest cover (operating income / interest)How many times operating profit covers interest.
- 406.9×
Shareholder returns
- Dividend yield (dividends paid, TTM)
- 0.00%
- Net buyback yield (TTM)
- 4.67%
- Shareholder yield
- 4.67%
- Share count change, 1 year
- -1.9%
- Share count change, 3-year CAGR
- -0.3%
Shareholder yield = dividends + net buybacks over the last four quarters, divided by market cap.
Based on the four quarters through Jun 30, 2026 (filed Aug 3, 2026).
Earnings and expectations
Earnings momentum
- Consecutive EPS beats
- 14
- Beats in the last 8 reports
- 8 of 8
- Average EPS surprise, last 4
- +100.0%
- Average 2-day reaction, last 8
- +0.7%
- Positive 20 days after report
- 2 of 8
Analysts
- Consensus price target
- $62.30
- Target vs current price
- -11.9%
- Analysts with a rating
- 28
- Share rating Buy or Strong Buy
- 43%
- Consensus rating
- Hold
How the stock reacted to recent reports
| Report date | EPS surprise | 2 days | 5 days | 20 days | 60 days |
|---|---|---|---|---|---|
| Aug 3, 2026 | +159.3% | +4.0% | +19.8% | +22.4% | — |
| May 4, 2026 | +136.3% | -3.3% | -21.9% | -28.0% | -9.9% |
| Feb 11, 2026 | +139.1% | -0.3% | -9.2% | -12.0% | -33.1% |
| Nov 3, 2025 | +353.3% | +2.3% | +13.5% | +75.3% | +9.0% |
| Aug 4, 2025 | +104.5% | +3.1% | -37.2% | -25.7% | -38.0% |
| May 5, 2025 | +143.5% | -0.7% | -5.4% | -16.3% | -17.9% |
| Feb 10, 2025 | +55.4% | -0.6% | +1.9% | -1.5% | -11.1% |
| Nov 4, 2024 | +650.0% | +1.0% | +3.1% | -1.1% | +1.5% |
Returns from the close before each report. Past reactions do not determine future ones.
Earnings history
| Report date | EPS | Estimate | Surprise | Revenue |
|---|---|---|---|---|
| Aug 3, 2026 | $0.14 | -$0.24 | +159.3% | $200.6M |
| May 4, 2026 | $0.10 | -$0.28 | +136.3% | $204.6M |
| Feb 11, 2026 | $1.65 | $0.69 | +139.1% | $269.1M |
| Nov 3, 2025 | $0.38 | -$0.15 | +353.3% | $224.5M |
| Aug 4, 2025 | $0.45 | $0.22 | +104.5% | $217.1M |
| May 5, 2025 | $0.10 | -$0.23 | +143.5% | $201.3M |
| Feb 10, 2025 | $1.15 | $0.74 | +55.4% | $239.7M |
| Nov 4, 2024 | $0.60 | $0.08 | +650.0% | $203.2M |
Valuation in context
| Multiple | Now | 5-year median | 5-year percentile | Sector rank (cheapness) |
|---|---|---|---|---|
| P/E (trailing) | 15.3× | 73.2× | 33th | Top 6% |
| P/E (forward) | 59.2× | — | — | — |
| EV / EBITDA | 23.2× | — | — | Top 25% |
| EV / Sales | 2.14× | — | — | Top 27% |
| Free-cash-flow yield | 5.79% | — | — | Top 16% |
| Earnings yield | 6.53% | — | — | Top 6% |
P/E over the past five years
Range 11.3× – 180.1× since Sep 30, 2024. Each point: price on the filing date divided by trailing-twelve-month EPS known then.
What moved the stock over the past year
- Price return, 1 year
- -4.5%
- Earnings per share growth (TTM)
- +167.3%
- Change in P/E multiple
- -85.0%
Most of the move came from a change in the valuation multiple.
Technical state
Trend checklist
- ✗ Price above 20-day average
- ✓ Price above 50-day average
- ✓ Price above 200-day average
- ✓ 50-day average above 200-day
- ✗ MACD histogram positive
Trend quality
- Days above the 50-day average
- 67
- Days above the 200-day average
- 19
- 50-day average slope (20 days)
- +15.7%
- 200-day average slope (20 days)
- -7.7%
- Distance from 50-day average
- +11.2%
- Distance from 200-day average
- +15.8%
- RSI (14)
- 55.3
- Relative volume
- 0.65×
Risk and drawdowns
- Volatility, 60 days (annualized)
- 63.1%
- Volatility vs own 5-year history
- 68th percentile · Normal for this stock
- Beta vs S&P 500 (2 years, weekly)
- 0.92
- Correlation with S&P 500
- 0.22
- Current drawdown from 1-year high
- -50.9%
- Maximum drawdown, 3 years
- -84.1%
Largest declines in the past six years
| From peak | To low | Decline | Length | Recovery |
|---|---|---|---|---|
| Jul 14, 2023 | May 15, 2026 | -87.7% | 712 days | Not yet recovered |
| Nov 8, 2021 | May 9, 2022 | -47.3% | 125 days | 250 days (May 8, 2023) |
| Mar 1, 2021 | Jun 4, 2021 | -33.8% | 67 days | 73 days (Sep 17, 2021) |
| Jan 19, 2021 | Jan 27, 2021 | -15.5% | 6 days | 9 days (Feb 9, 2021) |
| Sep 21, 2021 | Sep 29, 2021 | -13.3% | 6 days | 17 days (Oct 22, 2021) |
Declines of 10% or more from a closing high, measured on daily closes.
Financial statements
- Market cap
- $2.02B
- P/E (TTM)
- 15.3
- EPS, diluted (TTM)
- $4.62
- Revenue (TTM)
- $898.7M
- 52-week range
- $38.91 – $147.03
| FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 | |
|---|---|---|---|---|---|
| Revenue | $233.4M | $407.9M | $624.8M | $802.8M | $912.0M |
| Gross profit | $200.1M | $341.7M | $528.2M | $679.8M | $778.8M |
| Operating income | -$39.9M | -$47.6M | -$40.3M | $36.1M | $51.0M |
| Net income | -$42.0M | -$44.9M | -$21.2M | $53.5M | $145.4M |
| EPS (diluted) | -$1.54 | -$1.60 | -$0.72 | $1.75 | $4.89 |
| Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | Q1 2026 | Q2 2026 | |
|---|---|---|---|---|---|---|---|---|
| Revenue | $203.2M | $239.7M | $201.3M | $217.1M | $224.5M | $269.1M | $204.6M | $200.6M |
| Net income | $18.5M | $35.2M | $3.0M | -$3.6M | $9.9M | $136.1M | -$11.3M | $314,000 |
| EPS (diluted) | $0.60 | $1.15 | $0.10 | -$0.12 | $0.34 | $4.66 | -$0.39 | $0.01 |
| FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 | |
|---|---|---|---|---|---|
| Operating cash flow | -$20.1M | $11.6M | $24.7M | $130.2M | $117.0M |
| Capital expenditure | -$4.7M | -$9.1M | -$23.6M | -$39.1M | -$38.5M |
| Free cash flow | -$24.8M | $2.5M | $1.0M | $91.1M | $78.5M |
| Dividends paid | $0 | $0 | $0 | $0 | $0 |
| Net share buybacks | $14.9M | $259.6M | $31.1M | -$47.2M | -$160.4M |
Cash outflows are shown as negative numbers.
- Cash and short-term investments
- $320.7M
- Total assets
- $926.0M
- Total liabilities
- $100.4M
- Total debt
- $29.1M
- Net debt
- -$98.7M
- Shareholders’ equity
- $825.6M
As of Jun 30, 2026 (filed Aug 3, 2026).
Dividends
| Ex-date | Amount | Paid |
|---|---|---|
| Jan 9, 2008 | $9.00 | — |
Short interest
- Shares sold short
- 3,928,250
- Days to cover
- 4.94
- Change vs previous report
- +7.4%
FINRA short interest, settlement date Sep 15, 2026.