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INSP vs. IGSB
Performance
Return for Risk
Drawdowns
Volatility
Dividends

INSP vs. IGSB

Last updated Jun 25, 2026

INSP (Inspire Medical Systems, Inc.) is a stock, while IGSB (iShares 1-5 Year Investment Grade Corporate Bond ETF) is Corporate Bonds fund tracking the ICE BofA 1-5 Year US Corporate Index. Over the past 5 years, INSP returned -26.26%/yr vs 2.50%/yr for IGSB. At a 0.14 correlation, their price movements are largely independent.

Performance

INSP vs. IGSB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Inspire Medical Systems, Inc. (INSP) and iShares 1-5 Year Investment Grade Corporate Bond ETF (IGSB). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, INSP achieves a -53.16% return, which is significantly lower than IGSB's 0.91% return.

INSP

1D
3.47%
1M
-1.46%
YTD
-53.16%
6M
-54.84%
1Y
-67.41%
3Y*
-48.44%
5Y*
-26.26%
10Y*
—

IGSB

1D
0.15%
1M
0.46%
YTD
0.91%
6M
0.97%
1Y
4.10%
3Y*
5.77%
5Y*
2.50%
10Y*
2.73%
*Multi-year figures are annualized to reflect compound growth (CAGR)

INSP vs. IGSB - Yearly Performance Comparison

2026 (YTD)20252024202320222021202020192018
INSP
Inspire Medical Systems, Inc.		-53.16%-50.25%-8.87%-19.24%9.48%22.31%153.46%75.64%72.52%
IGSB
iShares 1-5 Year Investment Grade Corporate Bond ETF		0.91%6.96%4.97%6.40%-5.63%-0.56%5.37%7.11%1.57%

Correlation

The correlation between INSP and IGSB is 0.11, which is low. Their price movements are largely independent, making them effective diversification partners.

Correlation
Correlation (1Y)
Calculated over the trailing 1-year period

0.11

Correlation (3Y)
Calculated over the trailing 3-year period

0.16

Correlation (5Y)
Calculated over the trailing 5-year period

0.16

Correlation (All Time)
Calculated using the full available price history since May 3, 2018

0.14

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

Inspire Medical Systems, Inc.

iShares 1-5 Year Investment Grade Corporate Bond ETF

Often compared with INSP:
INSP vs. RMDINSP vs. TCMDINSP vs. INMDINSP vs. ^SP500TRINSP vs. SLYVINSP vs. LLYINSP vs. VIIIX
Often compared with IGSB:
IGSB vs. VCSHIGSB vs. LQDIGSB vs. SPSBIGSB vs. IGIBIGSB vs. SLQDIGSB vs. FLDRIGSB vs. AGG

Return for Risk

INSP vs. IGSB — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
INSP
INSP Risk / Return Rank: 77
Overall Rank
INSP Sharpe Ratio Rank: 77
Sharpe Ratio Rank
INSP Sortino Ratio Rank: 77
Sortino Ratio Rank
INSP Omega Ratio Rank: 66
Omega Ratio Rank
INSP Calmar Ratio Rank: 55
Calmar Ratio Rank
INSP Martin Ratio Rank: 99
Martin Ratio Rank
IGSB
IGSB Risk / Return Rank: 7373
Overall Rank
IGSB Sharpe Ratio Rank: 7474
Sharpe Ratio Rank
IGSB Sortino Ratio Rank: 8282
Sortino Ratio Rank
IGSB Omega Ratio Rank: 7979
Omega Ratio Rank
IGSB Calmar Ratio Rank: 6464
Calmar Ratio Rank
IGSB Martin Ratio Rank: 6969
Martin Ratio Rank
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.

INSP vs. IGSB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Inspire Medical Systems, Inc. (INSP) and iShares 1-5 Year Investment Grade Corporate Bond ETF (IGSB). 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.

INSPIGSBDifference
Sharpe ratioReturn per unit of total volatility
-0.90
2.11

-3.02

Sortino ratioReturn per unit of downside risk
-1.46
3.24

-4.69

Omega ratioGain probability vs. loss probability

0.79

1.42

-0.62

Calmar ratioReturn relative to maximum drawdown

-0.94

2.82

-3.76

Martin ratioReturn relative to average drawdown

-1.41

11.30

-12.72

INSP vs. IGSB - Sharpe Ratio Comparison

The current INSP Sharpe Ratio is -0.90, which is lower than the IGSB Sharpe Ratio of 2.11. The chart below compares the historical Sharpe Ratios of INSP and IGSB, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Drawdowns

INSP vs. IGSB - Drawdown Comparison

The maximum INSP drawdown since its inception was -87.72%, which is greater than IGSB's maximum drawdown of -13.38%. Use the drawdown chart below to compare losses from any high point for INSP and IGSB.

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Drawdown Indicators

INSPIGSBDifference

Max Drawdown

Largest peak-to-trough decline

-87.72%

-13.38%

-74.34%

Max Drawdown (1Y)

Largest decline over 1 year

-72.19%

-1.46%

-70.73%

Max Drawdown (3Y)

Largest decline over 3 years

-87.72%

-1.46%

-86.26%

Max Drawdown (5Y)

Largest decline over 5 years

-87.72%

-9.46%

-78.26%

Max Drawdown (10Y)

Largest decline over 10 years

—

-13.38%

—

Current Drawdown

Current decline from peak

-86.75%

-0.13%

-86.62%

Average Drawdown

Average peak-to-trough decline

-27.97%

-0.85%

-27.12%

Ulcer Index

Depth and duration of drawdowns from previous peaks

47.72%

0.36%

+47.36%

Volatility

INSP vs. IGSB - Volatility Comparison

Inspire Medical Systems, Inc. (INSP) has a higher volatility of 11.15% compared to iShares 1-5 Year Investment Grade Corporate Bond ETF (IGSB) at 0.70%. This indicates that INSP's price experiences larger fluctuations and is considered to be riskier than IGSB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

INSPIGSBDifference

Volatility (1M)

Calculated over the trailing 1-month period

11.15%

0.70%

+10.45%

Volatility (6M)

Calculated over the trailing 6-month period

42.11%

1.51%

+40.60%

Volatility (1Y)

Calculated over the trailing 1-year period

74.88%

1.95%

+72.93%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

60.34%

2.94%

+57.40%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

60.46%

3.47%

+56.99%

Dividends

INSP vs. IGSB - Dividend Comparison

INSP has not paid dividends to shareholders, while IGSB's dividend yield for the trailing twelve months is around 4.57%.

PositionTTM20252024202320222021202020192018201720162015
IGSB
iShares 1-5 Year Investment Grade Corporate Bond ETF		4.57%4.44%4.02%3.26%2.07%1.82%2.36%3.06%2.46%1.65%1.45%1.18%
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%

Frequently Asked Questions

INSP and IGSB have a correlation of 0.11, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

INSP has higher volatility (11.15%) compared to IGSB (0.70%). In terms of maximum drawdown, INSP dropped -87.72% vs IGSB's -13.38%.

IGSB currently has the higher Sharpe Ratio (2.11 vs -0.90), 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.

Portfolio Optimizer

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