INSP vs. RMD
INSP (Inspire Medical Systems, Inc.) and RMD (ResMed Inc.) are both stocks. Both are in the Healthcare sector — INSP in Medical Devices, RMD in Medical Instruments & Supplies. Over the past 5 years, INSP returned -22.80%/yr vs -4.10%/yr for RMD. Their 0.41 correlation means their historical movements had little consistent relationship.
Performance
INSP vs. RMD - Performance Comparison
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Returns By Period
In the year-to-date period, INSP achieves a -45.56% return, which is significantly lower than RMD's -11.95% return.
INSP
- 1D
- 0.38%
- 1M
- 6.94%
- 6M
- -33.74%
- YTD
- -45.56%
- 1Y
- -60.18%
- 3Y*
- -44.32%
- 5Y*
- -22.80%
- 10Y*
- —
- ALL TIME*
- 9.10%
RMD
- 1D
- 1.16%
- 1M
- 0.64%
- 6M
- -17.89%
- YTD
- -11.95%
- 1Y
- -23.69%
- 3Y*
- -1.21%
- 5Y*
- -4.10%
- 10Y*
- 13.03%
- ALL TIME*
- 20.57%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $40.00M | $44.43M | $52.50M | |
RMD ResMed Inc. | $221.77M | $287.46M | $300.95M |
INSP vs. RMD - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
INSP Inspire Medical Systems, Inc. | -45.56% | -50.25% | -8.87% | -19.24% | 9.48% | 22.31% | 153.46% | 75.64% | 72.52% |
RMD ResMed Inc. | -11.95% | 6.26% | 34.18% | -16.55% | -19.47% | 23.41% | 38.33% | 37.85% | 20.10% |
Correlation
The correlation between INSP and RMD is 0.36, which is low. Their historical price movements had little consistent relationship.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.36 |
Correlation (3Y) Balances recent behavior with more history. | 0.42 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.45 |
Correlation (All Time) Calculated using the full available price history since May 3, 2018 | 0.41 |
Fundamentals
INSP:
$1.45B
RMD:
$30.60B
INSP:
$4.50
RMD:
$15.50
INSP:
11.17
RMD:
13.61
INSP:
0.06
RMD:
0.42
INSP:
1.60
RMD:
3.73
INSP:
$915.25M
RMD:
$5.54B
INSP:
$785.06M
RMD:
$3.42B
INSP:
$67.14M
RMD:
$2.10B
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Return for Risk
INSP vs. RMD — Risk / Return Rank
INSP
RMD
INSP vs. RMD - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Inspire Medical Systems, Inc. (INSP) and ResMed Inc. (RMD). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| INSP | RMD | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | 0.00 | ||
| Sortino ratioReturn per unit of downside risk | -0.08 | ||
| Omega ratioGain probability vs. loss probability | 0.85 | 0.88 | -0.04 |
| Calmar ratioReturn relative to maximum drawdown | -0.83 | -0.58 | -0.25 |
| Martin ratioReturn relative to average drawdown | -1.17 | -1.08 | -0.08 |
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Drawdowns
INSP vs. RMD - Drawdown Comparison
The maximum INSP drawdown since its inception was -87.72%, which is greater than RMD's maximum drawdown of -61.61%. Use the drawdown chart below to compare losses from any high point for INSP and RMD.
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Drawdown Indicators
| INSP | RMD | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -87.72% | -61.61% | -26.11% |
Max Drawdown (1Y)Largest decline over 1 year | -72.19% | -37.28% | -34.91% |
Max Drawdown (3Y)Largest decline over 3 years | -85.55% | -37.28% | -48.27% |
Max Drawdown (5Y)Largest decline over 5 years | -87.72% | -53.99% | -33.73% |
Max Drawdown (10Y)Largest decline over 10 years | — | -53.99% | — |
Current DrawdownCurrent decline from peak | -84.60% | -27.62% | -56.98% |
Average DrawdownAverage peak-to-trough decline | -28.68% | -16.06% | -12.62% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 51.14% | 20.03% | +31.11% |
Volatility
INSP vs. RMD - Volatility Comparison
Inspire Medical Systems, Inc. (INSP) and ResMed Inc. (RMD) have volatilities of 13.40% and 12.95%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| INSP | RMD | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 13.40% | 12.95% | +0.45% |
Volatility (6M)Calculated over the trailing 6-month period | 39.42% | 23.18% | +16.24% |
Volatility (1Y)Calculated over the trailing 1-year period | 75.49% | 27.51% | +47.98% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 60.26% | 31.52% | +28.74% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 60.30% | 31.69% | +28.61% |
Dividends
INSP vs. RMD - Dividend Comparison
INSP has not paid dividends to shareholders, while RMD's dividend yield for the trailing twelve months is around 1.14%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
INSP Inspire Medical Systems, Inc. | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
RMD ResMed Inc. | 1.14% | 0.94% | 0.88% | 1.07% | 0.83% | 0.62% | 0.73% | 0.98% | 1.26% | 1.61% | 2.03% | 2.16% |
Financials
INSP vs. RMD - Financials Comparison
This section allows you to compare key financial metrics between Inspire Medical Systems, Inc. and ResMed Inc.. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
INSP vs. RMD - Profitability Comparison
INSP - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Inspire Medical Systems, Inc. reported a gross profit of 176.91M and revenue of 204.58M. Therefore, the gross margin over that period was 86.5%.
RMD - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, ResMed Inc. reported a gross profit of 890.98M and revenue of 1.43B. Therefore, the gross margin over that period was 62.3%.
INSP - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Inspire Medical Systems, Inc. reported an operating income of -1.12M and revenue of 204.58M, resulting in an operating margin of -0.6%.
RMD - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, ResMed Inc. reported an operating income of 499.81M and revenue of 1.43B, resulting in an operating margin of 34.9%.
INSP - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Inspire Medical Systems, Inc. reported a net income of -11.29M and revenue of 204.58M, resulting in a net margin of -5.5%.
RMD - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, ResMed Inc. reported a net income of 398.73M and revenue of 1.43B, resulting in a net margin of 27.9%.
Frequently Asked Questions
INSP and RMD have a correlation of 0.36, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
INSP has higher volatility (13.40%) compared to RMD (12.95%). In terms of maximum drawdown, INSP dropped -87.72% vs RMD's -61.61%.
RMD currently has the higher Sharpe Ratio (-0.79 vs -0.79), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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