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IUSB · iShares Core Universal USD Bond ETF
Over the last 12 years (2014-07 to 2026-10), $10,000 invested in IUSB with dividends reinvested grew to $12,798, 2.02% a year, with a worst peak-to-trough fall of -16.78%. Past performance doesn't predict future results.
Growth of $10,000 · 2014-07 to 2026-10 · dividends reinvested
How IUSB held up in past market crashes
IUSB has been through 3 of the market crashes since 2000 in our data. Its deepest price fall was 16.2% in the 2022 bear market, when the S&P 500 fell 25.4%. Its price had not yet regained that high by the latest close (price only, not counting the dividends or interest it paid). No fund is safe from losses; past falls do not predict future ones.
| Crash | IUSB deepest fall | S&P 500 (SPY) | Peak to bottom | Back to peak |
|---|---|---|---|---|
| 2018 fourth-quarter selloff | -1.6% | -20.2% | Sep 2018 to Nov 2018 | 2 months |
| 2020 COVID crash | -9.9% | -34.1% | Mar 2020 to Mar 2020 | 4 months |
| 2022 bear market | -16.2% | -25.4% | Jan 2022 to Oct 2022 | Not yet |
Price declines in the fund's listing currency, dividends not included, inside each crash's S&P 500 peak-to-bottom window. See how 50 popular ETFs compare in the crash study.
About IUSB
iShares Core Universal USD Bond ETF is a fixed income exchange-traded fund that seeks to track the Bloomberg U.S. Universal Index, providing broad exposure to U.S. dollar-denominated taxable bonds. The fund invests across the credit spectrum, including investment-grade and high-yield debt, and typically holds a diversified mix of U.S. Treasury securities, government agency bonds, mortgage-backed securities, and corporate bonds.
Fund description from our market-data provider.
Put IUSB to the test
Every tool below opens prefilled with IUSB: free, no account needed.
Backtest IUSB →
Full history, any date range, benchmarks, drawdowns, rolling returns.
Would IUSB survive 2008? →
What actually happened to it in the crisis: real drawdown and recovery.
Project it forward →
Monte Carlo simulation of where it could go from here.
Compare IUSB vs VTI →
Side by side with the total US market: returns, drawdowns and volatility over their shared history.
Replay $100/mo into IUSB →
Animated growth of steady monthly contributions.
Fundamentals →
Holdings-level financials where available.
More on IUSB
Educational use only, not investment advice. Results are hypothetical.Read full disclaimer
This tool is for educational and informational purposes only and does not provide financial, investment, tax, legal, or accounting advice. Results are hypothetical and based on historical data and assumptions that may be inaccurate. Past performance does not guarantee future results. Consult a licensed professional before making investment decisions.