# iShares Core Universal USD Bond ETF (IUSB) — Holdings

IUSB · NASDAQ · Fund

Canonical page: https://www.lighthorse.io/tickers/iusb/holdings

## Top holdings (as of Oct 14, 2026)

The 10 largest positions make up 8.3% of the fund. Want full holdings data source? [Register at AInvest](https://www.ainvest.com/etfs/NASDAQ-IUSB/holdings/).

| Ticker | Weight |
| --- | --- |
| TMCXX | 4.82% |
| United States Treasury Notes 4.625% 15-FEB-2035 | 0.49% |
| United States Treasury Notes 4.0% 15-NOV-2035 | 0.41% |
| United States Treasury Notes 4.25% 15-AUG-2035 | 0.41% |
| United States Treasury Notes 1.875% 15-FEB-2032 | 0.39% |
| United States Treasury Notes 4.125% 31-MAY-2031 | 0.37% |
| United States Treasury Notes 4.125% 15-FEB-2036 | 0.36% |
| UMBS TBA 15yr 2% November Delivery 2.000% 01-SEP-2036 | 0.35% |
| United States Treasury Notes 4.125% 31-AUG-2028 | 0.34% |
| UMBS TBA 30yr 5.5% November Delivery 5.500% 01-JUN-2056 | 0.34% |

## Frequently Asked Questions

### What are the top holdings of IUSB?

As of Oct 14, 2026, the largest positions in iShares Core Universal USD Bond ETF are TMCXX (4.8%), United States Treasury Notes 4.625% 15-FEB-2035 (0.5%), United States Treasury Notes 4.0% 15-NOV-2035 (0.4%), United States Treasury Notes 4.25% 15-AUG-2035 (0.4%), United States Treasury Notes 1.875% 15-FEB-2032 (0.4%).

### How concentrated is IUSB?

The 10 largest positions make up 8.3% of iShares Core Universal USD Bond ETF, as reported on Oct 14, 2026.

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Fund holdings are reported periodically and are a snapshot of a past date, not a live position list — what the fund holds today may differ. Weights cover only the largest positions shown, not the whole portfolio.

This page is for informational purposes only. Nothing on it is a recommendation, solicitation or offer to buy or sell any security, nor investment, legal or tax advice. Light Horse Securities Inc does not verify third-party data and is not responsible for its accuracy, completeness or timeliness.

Data provided by [AInvest](https://www.ainvest.com).