IUSB: iShares Core Universal USD Bond ETF

What does IUSB hold?#

This fund holds more than 18,000 bonds paid in US dollars. Most are high quality, but some are riskier junk bonds. When interest rates go up, bond prices usually go down.

It tracks the Bloomberg U.S. Universal Index. It had 18,251 holdings as of October 15, 2026, according to iShares (BlackRock).

What is the IUSB expense ratio?#

IUSB charges 0.06% a year. An expense ratio is the yearly fee a fund takes to run itself. On $10,000, a 0.06% fee comes to about $6 a year.

You never get a bill for it. The fund takes the fee out of its own value a little each day.

How has IUSB done since 2014?#

From June 2014 to October 2026, IUSB returned about 2.0% a year. Say you put in $10,000 at the start. It would have been worth about $12,703 at the end, with every dividend reinvested.

Prices through October 16, 2026. Figures use daily closing prices adjusted for splits, with dividends reinvested. They do not include taxes or the cost of buying and selling. Past results do not tell you what will happen next.

IUSB returns by year#

What was IUSB’s worst drop?#

A drawdown is how far a fund falls from its last high point. IUSB’s worst fall was −17.9%, from December 31, 2020 to October 20, 2022. It got back to that high on October 20, 2025.

The chart shows how far below its last high the fund was on each day. Big drops are normal for some funds. They matter because selling during a drop locks in the loss.

Which Tactfolio strategies hold IUSB?#

No classic strategy holds IUSB yet. You can add it to your own rules in the builder and see how they would have done.

How does IUSB compare with similar ETFs?#

Funds that can stand in for IUSB:

• AGG: iShares Core U.S. Aggregate Bond ETF, 0.03% a year
• BND: Vanguard Total Bond Market ETF, 0.03% a year
• SCHZ: Schwab U.S. Aggregate Bond ETF, 0.03% a year
• VGIT: Vanguard Intermediate-Term Treasury ETF, 0.03% a year

See all 7 IUSB alternatives, compared on the same dates as IUSB.

Test IUSB in your own rules#

Tactfolio is a platform where you build rules-based investing strategies, backtest them on decades of real prices, share them, and run them automatically in your own Alpaca account. Open the builder, add IUSB, and see how a rule such as “hold it only above its 200-day average” would have done. Strategies run on daily prices and hold US stocks and ETFs only.

The details#

Prices come from Tactfolio’s stored daily prices for IUSB. Each close is adjusted for splits, and dividends are reinvested on the day the fund pays them out. CAGR is the steady yearly return that turns the starting value into the ending value. Volatility is the yearly standard deviation of daily returns.

Fund facts come from iShares (BlackRock). We checked them on October 17, 2026. Read what a backtest simulates and how to read drawdown and CAGR for more on these measures.