RMD vs. INSP

Last updated Apr 2, 2026

Compare and contrast key facts about ResMed Inc. (RMD) and Inspire Medical Systems, Inc. (INSP).

Performance

RMD vs. INSP - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ResMed Inc. (RMD) and Inspire Medical Systems, Inc. (INSP). The values are adjusted to include any dividend payments, if applicable.

RMD vs. INSP - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
RMD ResMed Inc.	-7.27%	6.26%	34.18%	-16.55%	-19.47%	23.41%	38.33%	37.85%	18.66%
INSP Inspire Medical Systems, Inc.	-41.84%	-50.25%	-8.87%	-19.24%	9.48%	22.31%	153.46%	75.64%	69.14%

Fundamentals

EPS RMD : $15.16 INSP : $4.94
PE Ratio RMD : 14.70 INSP : 10.86
PEG Ratio RMD : 0.46 INSP : 0.06
PS Ratio RMD : 4.05 INSP : 1.73
Total Revenue (TTM) RMD : $5.40B INSP : $911.98M
Gross Profit (TTM) RMD : $3.29B INSP : $778.76M
EBITDA (TTM) RMD : $1.96B INSP : $66.00M

Returns By Period

In the year-to-date period, RMD achieves a -7.27% return, which is significantly higher than INSP's -41.84% return.

RMD

• 1D: -0.73%
• 1M: -13.42%
• YTD: -7.27%
• 6M: -17.34%
• 1Y: 1.15%
• 3Y*: 1.53%
• 5Y*: 3.65%
• 10Y*: 15.53%

INSP

• 1D: 3.99%
• 1M: -17.23%
• YTD: -41.84%
• 6M: -25.89%
• 1Y: -66.05%
• 3Y*: -38.81%
• 5Y*: -23.73%
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

Return for Risk

RMD vs. INSP — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

RMD

RMD Risk / Return Rank: 38
RMD Sharpe Ratio Rank: 41
RMD Sortino Ratio Rank: 35
RMD Omega Ratio Rank: 35
RMD Calmar Ratio Rank: 41
RMD Martin Ratio Rank: 41

INSP

INSP Risk / Return Rank: 5
INSP Sharpe Ratio Rank: 6
INSP Sortino Ratio Rank: 6
INSP Omega Ratio Rank: 5
INSP Calmar Ratio Rank: 4
INSP Martin Ratio Rank: 7

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

RMD vs. INSP - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ResMed Inc. (RMD) and Inspire Medical Systems, Inc. (INSP). 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.

	RMD	INSP	Difference
Sharpe ratio Return per unit of total volatility	0.05	-0.90	+0.95
Sortino ratio Return per unit of downside risk	0.25	-1.45	+1.70
Omega ratio Gain probability vs. loss probability	1.03	0.80	+0.24
Calmar ratio Return relative to maximum drawdown	0.02	-0.96	+0.98
Martin ratio Return relative to average drawdown	0.04	-1.59	+1.64
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

RMD vs. INSP - Sharpe Ratio Comparison

The current RMD Sharpe Ratio is 0.05, which is higher than the INSP Sharpe Ratio of -0.90. The chart below compares the historical Sharpe Ratios of RMD and INSP, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	RMD	INSP	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.05	-0.90	+0.95
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.12	-0.40	+0.51
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.50	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.53	0.17	+0.37

Correlation

The correlation between RMD and INSP is 0.41, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

RMD vs. INSP - Dividend Comparison

RMD's dividend yield for the trailing twelve months is around 1.05%, while INSP has not paid dividends to shareholders.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RMD ResMed Inc.	1.05%	0.94%	0.88%	1.07%	0.83%	0.62%	0.73%	0.98%	1.26%	1.61%	2.03%	2.16%
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%

Drawdowns

RMD vs. INSP - Drawdown Comparison

The maximum RMD drawdown since its inception was -61.61%, smaller than the maximum INSP drawdown of -84.63%. Use the drawdown chart below to compare losses from any high point for RMD and INSP.

Drawdown Indicators

	RMD	INSP	Difference
Max Drawdown Largest peak-to-trough decline	-61.61%	-84.63%	+23.02%
Max Drawdown (1Y) Largest decline over 1 year	-24.74%	-69.03%	+44.29%
Max Drawdown (5Y) Largest decline over 5 years	-53.99%	-84.63%	+30.64%
Max Drawdown (10Y) Largest decline over 10 years	-53.99%	—	—
Current Drawdown Current decline from peak	-23.77%	-83.55%	+59.78%
Average Drawdown Average peak-to-trough decline	-15.91%	-26.34%	+10.43%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.64%	41.63%	-30.99%

Volatility

RMD vs. INSP - Volatility Comparison

The current volatility for ResMed Inc. (RMD) is 6.08%, while Inspire Medical Systems, Inc. (INSP) has a volatility of 11.20%. This indicates that RMD experiences smaller price fluctuations and is considered to be less risky than INSP based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RMD	INSP	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.08%	11.20%	-5.12%
Volatility (6M) Calculated over the trailing 6-month period	17.01%	56.19%	-39.18%
Volatility (1Y) Calculated over the trailing 1-year period	25.57%	73.54%	-47.97%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	31.08%	60.29%	-29.21%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	31.40%	60.64%	-29.24%

Financials

RMD vs. INSP - Profitability Comparison

The chart below illustrates the profitability comparison between ResMed Inc. and Inspire Medical Systems, Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

RMD - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, ResMed Inc. reported a gross profit of 878.72M and revenue of 1.42B. Therefore, the gross margin over that period was 61.8%.

INSP - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Inspire Medical Systems, Inc. reported a gross profit of 233.01M and revenue of 269.08M. Therefore, the gross margin over that period was 86.6%.

RMD - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, ResMed Inc. reported an operating income of 491.66M and revenue of 1.42B, resulting in an operating margin of 34.6%.

INSP - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Inspire Medical Systems, Inc. reported an operating income of 46.11M and revenue of 269.08M, resulting in an operating margin of 17.1%.

RMD - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, ResMed Inc. reported a net income of 392.59M and revenue of 1.42B, resulting in a net margin of 27.6%.

INSP - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Inspire Medical Systems, Inc. reported a net income of 136.09M and revenue of 269.08M, resulting in a net margin of 50.6%.