ISTB is a Bond ETF from iShares holding 7059 positions as of Apr 30, 2026, with $5.1B in assets and a 0.06% net expense ratio. Its largest positions are U.S. Treasury Notes (1.0%), U.S. Treasury Notes (1.0%) and U.S. Treasury Notes (1.0%); the top 10 holdings account for 8.8% of the portfolio. It yields 4.27% on a trailing-12-month basis.
- Issuer
- iShares
- Holdings
- 70591.9% cash, collateral & derivative positions excluded
- Net Assets
- $5.1BETF assets as of 2026-08-10
- Expense Ratio
- 0.06%per latest SEC prospectus filing
- TTM Yield
- 4.27%trailing 12-month distributions
Performance
- 1M
- +0.3%
- YTD
- +1.0%
- 1Y
- +3.0%
- 3Y (ann.)
- +5.0%
- 5Y (ann.)
- +1.9%
- 10Y (ann.)
- +2.3%
A $10,000 investment 10 years ago would be worth $12,492 today at the 10Y annualized rate. This is a backward-looking illustration, not a forecast. Project its future growth →
Total returns including dividends as of 2026-08-07. 3Y/5Y/10Y annualized. Past performance does not predict future results.
Top 25 Holdings
| # | Holding | Weight |
|---|---|---|
| 1 | U.S. Treasury Notes | 0.99% |
| 2 | U.S. Treasury Notes | 0.98% |
| 3 | U.S. Treasury Notes | 0.96% |
| 4 | U.S. Treasury Notes | 0.91% |
| 5 | U.S. Treasury Notes | 0.89% |
| 6 | U.S. Treasury Notes | 0.86% |
| 7 | U.S. Treasury Notes | 0.83% |
| 8 | U.S. Treasury Notes | 0.81% |
| 9 | U.S. Treasury Notes | 0.80% |
| 10 | U.S. Treasury Notes | 0.73% |
| 11 | U.S. Treasury Notes | 0.71% |
| 12 | U.S. Treasury Notes | 0.70% |
| 13 | U.S. Treasury Notes | 0.68% |
| 14 | U.S. Treasury Notes | 0.67% |
| 15 | U.S. Treasury Notes | 0.67% |
| 16 | U.S. Treasury Notes | 0.64% |
| 17 | U.S. Treasury Notes | 0.64% |
| 18 | U.S. Treasury Notes | 0.63% |
| 19 | U.S. Treasury Notes | 0.62% |
| 20 | U.S. Treasury Notes | 0.61% |
| 21 | U.S. Treasury Notes | 0.60% |
| 22 | U.S. Treasury Notes | 0.59% |
| 23 | U.S. Treasury Notes | 0.58% |
| 24 | U.S. Treasury Notes | 0.57% |
| 25 | U.S. Treasury Notes | 0.56% |
Showing the top 25 of 7059 holdings. See the full ISTB holdings list →
ISTB alternatives
The closest Bond ETFs to ISTB by portfolio overlap — the share of weight both funds hold in the same securities.
| Fund | Overlap | Expense | Assets | |
|---|---|---|---|---|
 BSVVanguard Short-term Bond Index Fund | 62% | 0.03%cheaper | $45.6B | Compare → |
 GVIiShares Intermediate Government/Credit Bond ETF | 51% | 0.2%pricier | $3.8B | Compare → |
 IUSBiShares Core Universal USD Bond ETF | 37% | 0.06% | $43.2B | Compare → |
 AGGiShares Core U.S. Aggregate Bond ETF | 33% | 0.03%cheaper | $137.7B | Compare → |
 BNDVanguard Total Bond Market Index Fund | 33% | 0.03%cheaper | $161.4B | Compare → |
 SCHZSchwab U.S. Aggregate Bond ETF | 32% | 0.03%cheaper | $10.5B | Compare → |
 GOVTiShares U.S. Treasury Bond ETF | 29% | 0.05%cheaper | $43.7B | Compare → |
 VGSHVanguard Short-term Treasury Index Fund | 28% | 0.03%cheaper | $30.2B | Compare → |
Frequently Asked Questions
What is ISTB's expense ratio?
ISTB has a net expense ratio of 0.06%, per its latest SEC prospectus filing. That works out to about $6 a year on a $10,000 investment.
How many holdings does ISTB have?
ISTB held 7059 positions as of Apr 30, 2026, per its latest official holdings data. Cash, collateral and derivative positions (1.9% of portfolio weight) are excluded from that count.
What are ISTB's top 10 holdings?
ISTB's largest positions are U.S. Treasury Notes (1.0%), U.S. Treasury Notes (1.0%), U.S. Treasury Notes (1.0%), U.S. Treasury Notes (0.9%), U.S. Treasury Notes (0.9%), U.S. Treasury Notes (0.9%), U.S. Treasury Notes (0.8%), U.S. Treasury Notes (0.8%), U.S. Treasury Notes (0.8%), U.S. Treasury Notes (0.7%). Together they account for 8.8% of the portfolio.
What is ISTB's dividend yield?
ISTB yields 4.27% based on its trailing 12-month distributions, as of Aug 7, 2026.
How big is ISTB?
ISTB has $5.1B in assets as of Aug 10, 2026.
What are good alternatives to ISTB?
By portfolio overlap, the closest Bond ETFs to ISTB are BSV (62% overlap), GVI (51% overlap), IUSB (37% overlap). Overlap measures the share of portfolio weight both funds hold in the same securities.