iShares Core Universal USD Bond ETF (IUSB)

How has IUSB done since 2014?#

From June 2014 to October 2026, IUSB returned about 2.0% a year. The S&P 500 returned about 13.7% a year over the same dates. Say you put in $10,000 at the start. It would have been worth about $12,703 at the end, with every dividend reinvested.

IUSB returns by month and year#

IUSB rose in 86 of its 149 months (58%). Its best month was November 2023, at 4.6%. Its worst was September 2022, at −4.1%.

How risky is IUSB compared with the S&P 500?#

Measured from October 2021 to October 2026, on the days both traded.

• Beta 0.09. When the S&P 500 moved 1% in a day, IUSB tended to move about 0.09%.
• Correlation 0.28. IUSB moved mostly on its own, apart from the S&P 500.
• Up and down months. In months the S&P 500 rose, IUSB rose 22% as much on average. In months it fell, IUSB fell 39% as much.

Is IUSB above its 200-day average?#

IUSB closed 1.5% below its 200-day average on October 16, 2026. A rule that holds IUSB only above that average would be out of it today.

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. On October 16, 2026 it was 3.1% below its highest close.

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. Of the 162 ETFs on Tactfolio, 72% charge more.

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

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 and SPY. 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. Beta and correlation compare daily returns with the S&P 500 over the same dates.

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.