iShares Core Universal USD Bond ETF IUSB
Source: Yahoo Finance (opens in a new tab) Observed · 1 day ago Quotes may be delayed
- Net expense ratio
- 0.06%
- Net assets
- $43.0B
- Holdings
- 18,110
- 12-month distribution yield
- 4.37%
- Asset class
- Fixed income
iShares Core Universal USD Bond ETF (IUSB) is an exchange-traded fund listed on the Nasdaq in the United States, issued by iShares. Its category is Fixed income · US (fixed income). Its last price was US$44.42 on 20 Oct 2026. Its net expense ratio is 0.06% a year, from its prospectus dated 27 Feb 2026. It reported net assets of US$43 billion as of 31 Jul 2026. Its latest holdings report lists 18,110 holdings as of 31 Jul 2026. Over the last 12 months it paid distributions of US$1.94 a unit, a 12-month distribution yield of 4.37%, paid monthly.
Fees
- Total annual operating expenses (gross)
- 0.06%
- Net, after fee waivers or reimbursements
- 0.06%
- Management fee
- 0.06%
- Prospectus date
- 27 Feb 2026
- Filed with the SEC
- 23 Feb 2026
Size and reporting
- Net assets
- $43,003,372,227
- Total assets
- $45,048,758,223
- Holdings as of
- 31 Jul 2026
- Report made public
- 25 Sep 2026 (56 days after the month end)
Top holdings
Largest 25 of 18,110 positions, as of 31 Jul 2026. Weight is the percent of net assets the fund reported.
| # | Holding | Identifier | Weight | Value (USD) | Type | Country | Currency |
|---|---|---|---|---|---|---|---|
| 1 | BlackRock Liquidity Funds BlackRock Liquidity TempCash Funds: Institutional Shares | US09248U6432 | 4.36% | $1.9B | Short-term investment vehicles (cash funds) | United States | USD |
| 2 | BlackRock Funds III BlackRock Cash Funds: Treasury, SL Agency Shares | US0669224778 | 0.80% | $343.9M | Short-term investment vehicles (cash funds) | United States | USD |
| 3 | Federal National Mortgage Association or Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities | US01F0206874 | 0.41% | $177.9M | Mortgage-backed securities | United States | USD |
| 4 | United States of America U.S. Treasury Notes | US91282CMD01 | 0.37% | $161.2M | Debt | United States | USD |
| 5 | United States of America U.S. Treasury Notes | US91282CQQ77 | 0.37% | $157.7M | Debt | United States | USD |
| 6 | United States of America U.S. Treasury Notes | US91282CJZ59 | 0.36% | $154.8M | Debt | United States | USD |
| 7 | United States of America U.S. Treasury Notes | US91282CMM00 | 0.35% | $148.9M | Debt | United States | USD |
| 8 | United States of America U.S. Treasury Notes | US91282CNT44 | 0.34% | $147.0M | Debt | United States | USD |
| 9 | United States of America U.S. Treasury Notes | US91282CKQ32 | 0.34% | $146.7M | Debt | United States | USD |
| 10 | United States of America U.S. Treasury Notes | US91282CLW90 | 0.34% | $145.5M | Debt | United States | USD |
| 11 | United States of America U.S. Treasury Notes | US91282CNC19 | 0.33% | $142.3M | Debt | United States | USD |
| 12 | United States of America U.S. Treasury Notes | US91282CPZ85 | 0.33% | $142.2M | Debt | United States | USD |
| 13 | United States of America U.S. Treasury Notes | US91282CLF67 | 0.33% | $141.8M | Debt | United States | USD |
| 14 | United States of America U.S. Treasury Notes | US91282CFF32 | 0.33% | $140.8M | Debt | United States | USD |
| 15 | United States of America U.S. Treasury Notes | US91282CPJ44 | 0.32% | $138.8M | Debt | United States | USD |
| 16 | Federal National Mortgage Association or Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities | US01F0426811 | 0.31% | $134.3M | Mortgage-backed securities | United States | USD |
| 17 | United States of America U.S. Treasury Notes | US91282CGQ87 | 0.31% | $132.0M | Debt | United States | USD |
| 18 | Federal National Mortgage Association or Federal Home Loan Mortgage Corp. Uniform Mortgage-Backed Securities | US01F0506844 | 0.30% | $128.7M | Mortgage-backed securities | United States | USD |
| 19 | United States of America U.S. Treasury Notes | US91282CNH06 | 0.30% | $127.1M | Debt | United States | USD |
| 20 | United States of America U.S. Treasury Notes | US91282CQS34 | 0.30% | $127.1M | Debt | United States | USD |
| 21 | United States of America U.S. Treasury Notes | US91282CNM90 | 0.29% | $124.5M | Debt | United States | USD |
| 22 | United States of America U.S. Treasury Notes | US91282CCS89 | 0.29% | $124.0M | Debt | United States | USD |
| 23 | United States of America U.S. Treasury Notes | US91282CPD73 | 0.29% | $123.9M | Debt | United States | USD |
| 24 | United States of America U.S. Treasury Notes | US91282CJJ18 | 0.29% | $123.7M | Debt | United States | USD |
| 25 | United States of America U.S. Treasury Notes | US91282CHA27 | 0.29% | $123.6M | Debt | United States | USD |
Breakdowns
Sums of reported weights over every position in the report. Totals can differ from 100% because of derivatives, borrowing and cash.
Asset type
| Type | Weight | Bar |
|---|---|---|
| Debt | 77.12% | |
| Mortgage-backed securities | 20.77% | |
| Short-term investment vehicles (cash funds) | 5.16% | |
| Other asset-backed securities | 0.29% | |
| Equity (common) | <0.01% |
Country
| Country | Weight | Bar |
|---|---|---|
| United States | 91.08% | |
| Canada | 1.21% | |
| United Kingdom | 1.01% | |
| Cayman Islands | 0.83% | |
| Japan | 0.65% | |
| Mexico | 0.54% | |
| France | 0.54% | |
| Netherlands | 0.46% | |
| United Arab Emirates | 0.35% | |
| Australia | 0.35% | |
| Türkiye | 0.31% | |
| Saudi Arabia | 0.31% | |
| Other (96) | 5.71% |
Currency exposure
| Currency | Weight | Bar |
|---|---|---|
| US dollar (USD) | 103.34% | |
| Euro (EUR) | <0.01% |
Sector
No sector data
Source: SEC Form N-PORT (opens in a new tab) Holdings as of
Distributions
- Paid in the last 12 months
- $1.9420
- 12-month yield
- 4.37%
- Frequency
- Monthly
- Latest ex-date
- 1 Oct 2026
12-month yield = distributions per unit with an ex-date in the last 12 months ($1.9420) ÷ latest price ($44.42) × 100 = 4.37%. It looks back, so it is not a forecast; special distributions in the window are included.
Why a distribution yield is not the fund's return: yield vs total return
Distribution history table (60 payments)
| Ex-date | Amount per unit |
|---|---|
| 1 Oct 2026 | $0.1540 |
| 1 Sep 2026 | $0.1680 |
| 3 Aug 2026 | $0.1690 |
| 1 Jul 2026 | $0.1640 |
| 1 Jun 2026 | $0.1510 |
| 1 May 2026 | $0.1630 |
| 1 Apr 2026 | $0.1650 |
| 2 Mar 2026 | $0.1570 |
| 2 Feb 2026 | $0.1650 |
| 19 Dec 2025 | $0.1650 |
| 1 Dec 2025 | $0.1570 |
| 3 Nov 2025 | $0.1640 |
| 1 Oct 2025 | $0.1670 |
| 2 Sep 2025 | $0.1640 |
| 1 Aug 2025 | $0.1660 |
| 1 Jul 2025 | $0.1610 |
| 2 Jun 2025 | $0.1650 |
| 1 May 2025 | $0.1610 |
| 1 Apr 2025 | $0.1620 |
| 3 Mar 2025 | $0.1550 |
| 3 Feb 2025 | $0.1540 |
| 18 Dec 2024 | $0.1610 |
| 2 Dec 2024 | $0.1590 |
| 1 Nov 2024 | $0.1580 |
| 1 Oct 2024 | $0.1550 |
| 3 Sep 2024 | $0.1570 |
| 1 Aug 2024 | $0.1570 |
| 1 Jul 2024 | $0.1520 |
| 3 Jun 2024 | $0.1500 |
| 1 May 2024 | $0.1500 |
| 1 Apr 2024 | $0.1500 |
| 1 Mar 2024 | $0.1460 |
| 1 Feb 2024 | $0.1300 |
| 14 Dec 2023 | $0.1450 |
| 1 Dec 2023 | $0.1430 |
| 1 Nov 2023 | $0.1400 |
| 2 Oct 2023 | $0.1340 |
| 1 Sep 2023 | $0.1300 |
| 1 Aug 2023 | $0.1360 |
| 3 Jul 2023 | $0.1340 |
| 1 Jun 2023 | $0.1360 |
| 1 May 2023 | $0.1290 |
| 3 Apr 2023 | $0.1250 |
| 1 Mar 2023 | $0.1220 |
| 1 Feb 2023 | $0.1220 |
| 15 Dec 2022 | $0.1170 |
| 1 Dec 2022 | $0.1140 |
| 1 Nov 2022 | $0.1010 |
| 3 Oct 2022 | $0.1020 |
| 1 Sep 2022 | $0.0990 |
| 1 Aug 2022 | $0.0970 |
| 1 Jul 2022 | $0.0860 |
| 1 Jun 2022 | $0.0920 |
| 2 May 2022 | $0.0900 |
| 1 Apr 2022 | $0.0890 |
| 1 Mar 2022 | $0.0740 |
| 1 Feb 2022 | $0.0730 |
| 16 Dec 2021 | $0.0560 |
| 1 Dec 2021 | $0.0670 |
| 1 Nov 2021 | $0.0850 |
Filings and sources
- Form N-PORT report for July 2026 (opens in a new tab)
- Prospectus filing with the fee table (opens in a new tab)
- All SEC filings for this fund series (S000045644) (opens in a new tab)
- Nasdaq Trader symbol directory (opens in a new tab)
- Yahoo Finance quote and distributions (opens in a new tab)
- How the ETF figures are collected
Compare with
Largest funds in the same category:
- IUSB and BND Vanguard Total Bond Market ETF
- IUSB and AGG iShares Core U.S. Aggregate Bond ETF
- IUSB and VTIP Vanguard Short-Term Inflation-Protected Securities Index Fund ETF Shares
- IUSB and BSV Vanguard Short-Term Bond ETF