iShares Core Universal USD Bond ETF
$44.76+0.02 (+0.05%)
- 0.06%
- $50.2B
- 0.0%
- 4.32%
- 6.13M sh
- low $43.75high $47.23
The ETF.net IUSB Grade
A
Score 86 out of 100
- 2 of 116
Score 86 of 100 falls in the A band. A is 70 or higher, B 55 to under 70, C 40 to under 55, D 25 to under 40, F under 25.
Cost
The fund’s net expense ratio, ranked against its category.A92 out of 100Rank 9 of 115Mission
Whether the fund did what it promised, tested against its stated mandate.A100 out of 100Rank 1 of 100Risk
How the fund held up when markets fell: downside volatility, drawdowns and tail loss.C54 out of 100Rank 35 of 116Tradability
How easy the fund is to trade: daily volume, and how far its price strays from net asset value.A89 out of 100Rank 4 of 116Holdings
How concentrated the fund is, and how complete and current its disclosed holdings are.A76 out of 100Rank 20 of 115Durability
Whether the fund is likely to stay open, judged by its age, its assets and its issuer’s assets.A94 out of 100Rank 5 of 116
Our read on IUSB
In short
AMost core bond funds stop at investment grade. IUSB keeps going, folding high-yield USD debt into the same wrapper across roughly 18,000 bonds, for 0.06% a year.
Stated mandate
The Fund seeks to track an index of U.S.-dollar-denominated bonds spanning investment-grade and high-yield sectors.
Why people hold it
Worth knowing
IUSB Holdings
- Bonds
- 18,280
- 8%
- BLK Liquidity Temp Cash Inst #21
Sectors
- Treasury40.6%
- MBS Pass-Through19.6%
- Industrial18.4%
- Financial Institutions10.0%
- Sovereign3.3%
- Utility2.7%
- Agency2.3%
- CMBS1.2%
- Supranational1.0%
- Local Authority0.5%
- ABS0.3%
Geography
- United States88.12%
- Canada1.20%
- United Kingdom1.01%
- Japan0.59%
- Cayman Islands0.56%
- Mexico0.51%
- France0.49%
- Luxembourg0.45%
- 7.06%
IUSB Performance
Shows how $10,000 changes over the selected period, with cash distributions reinvested at the closing price on each ex-dividend date.
IUSB$10,003
Returns run to the Oct 30, 2026 close, with cash distributions reinvested. Each period starts on the same date that many months or years earlier. Periods over one year show the average yearly return.
| Period | IUSB |
|---|---|
| Year to date | −0.4% |
| 1 month | +2.2% |
| 3 months | −0.1% |
| 1 year | 0.0% |
| 3 years | +5.8% |
| 5 years | +0.2% |
| 10 years | +1.7% |
Calendar-year total return with cash distributions hypothetically reinvested at the ex-dividend date’s closing price. The current year shows year to date.
| Year | Return bar | IUSB |
|---|---|---|
| 2026 YTD | −0.4% | |
| 2025 | +7.4% | |
| 2024 | +2.1% | |
| 2023 | +6.2% | |
| 2022 | −13.0% | |
| 2021 | −1.3% | |
| 2020 | +7.6% |
IUSB in the news
IUSB Dividends
- 4.32%
- $1.94
- $0.15 per share
- Monthly
IUSB Risk
- 5.5%
How it’s calculated: standard deviation
The sample standard deviation of monthly total returns, multiplied by the square root of 12.
Uses up to 36 complete months, with at least 12 required. Total returns include reinvested distributions.
- 0.25
How it’s calculated: Sharpe ratio
Subtract each month’s Treasury-bill return from the fund’s monthly total return.
Divide the average of those excess returns by their sample standard deviation, then multiply by the square root of 12.
Uses up to 36 complete months, with at least 12 required. Each month uses the Treasury yield quoted at the end of the previous month.
- −17.4%
How it’s calculated: maximum drawdown
The largest percentage decline from an earlier peak, using total returns with reinvested distributions.
Uses up to five years through the last close, with at least 12 months required.
- 0.96
How it’s calculated: beta
The beta figure is supplied by FMP. The comparison index depends on the fund’s broad asset class.
FMP measures it over up to five years of monthly returns.
IUSB Cost
Overpaying vs BKAG, cheapest in US Aggregate Bond
$1,270
On $10,000 over 30 years. 7% growth a year before fees, expense ratio only.
IUSB 0.06%
$1,270
BKAG 0.00% Cheapest
$0
Cost over time
Year by year
| Year | IUSB | BKAG | Overpaying |
|---|---|---|---|
| 10 | $110 | $0 | $110 |
| 20 | $432 | $0 | $432 |
| 30 | $1,270 | $0 | $1,270 |
Other funds in US Aggregate Bond
- AAGGiShares Core U.S. Aggregate Bond ETFExpense ratio 0.03%1 year return −0.2%
- ASCHZSchwab U.S. Aggregate Bond ETFExpense ratio 0.03%1 year return −0.2%
- ASPABState Street SPDR Portfolio Aggregate Bond ETFExpense ratio 0.03%1 year return −0.2%
- ABNDVanguard Total Bond Market ETFExpense ratio 0.03%1 year return −0.1%
- ABKAGBNY Mellon Core Bond ETFExpense ratio 0.00%1 year return −0.2%
