IGSB vs IUSB: Holdings Overlap
IGSBiShares 1-5 Year Investment Grade Corporate Bond ETF
iShares · 4605 holdings · $23.2B · as of 2026-05-31
IUSBiShares Core Universal USD Bond ETF
iShares · 17783 holdings · $43.2B · as of 2026-04-30
Holdings snapshots are 31 days apart (IGSB: 2026-05-31, IUSB: 2026-04-30). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are IGSB and IUSB?
iShares 1-5 Year Investment Grade Corporate Bond ETF (IGSB, by iShares) holds 4605 positions; iShares Core Universal USD Bond ETF (IUSB, by iShares) holds 17783. They have 4160 holdings in common, and by portfolio weight the two funds are 10.3% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 10.3%Sum of the smaller weight of each shared holding
- Shared Holdings
- 4160IGSB holds 4605 · IUSB holds 17783
- Weight in Shared Holdings
- IGSB 92%·IUSB 10%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in IGSB
445 of 4605 positions (6.8% of the fund) are not held by IUSB. Showing the top 30 by weight.
- Eagle Funding Luxco Sarl0.31%
- Meta Platforms Inc0.08%
- Saudi Arabian Oil Co0.08%
- Wells Fargo & Co0.08%
- Goldman Sachs Group Inc/The0.08%
- Tencent Holdings Ltd0.07%
Only in IUSB
13623 of 17783 positions (88.1% of the fund) are not held by IGSB. Showing the top 30 by weight.
- U.S. Treasury Notes0.37%
- U.S. Treasury Notes0.37%
- U.S. Treasury Notes0.37%
- U.S. Treasury Notes0.37%
- U.S. Treasury Notes0.36%
- U.S. Treasury Notes0.36%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IGSB | +0.3% | +1.2% | +3.5% | +5.6% | +2.5% | +2.7% | 4.61% |
| IUSB | -0.2% | +0.3% | +2.8% | +4.7% | +0.2% | +1.8% | 4.28% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in IGSB vs IUSB →
Shared Holdings(4160)
The top 10 shared positions account for 1% of the overlap, led by Bank of America Corp., Goldman Sachs Group, Inc. (The) and T-Mobile USA, Inc..
| Bank of America Corp. | 0.16% | 0.02% | 0.02% |
|---|---|---|---|
| Goldman Sachs Group, Inc. (The) | 0.09% | 0.02% | 0.02% |
| T-Mobile USA, Inc. | 0.18% | 0.02% | 0.02% |
| Goldman Sachs Group, Inc. (The) | 0.12% | 0.02% | 0.02% |
| AbbVie, Inc. | 0.14% | 0.01% | 0.01% |
| CVS Health Corp. | 0.13% | 0.01% | 0.01% |
| Wells Fargo & Co. | 0.10% | 0.01% | 0.01% |
| Medline Borrower LP | 0.05% | 0.01% | 0.01% |
| Bank of America Corp. | 0.11% | 0.01% | 0.01% |
| Wells Fargo & Co. | 0.11% | 0.01% | 0.01% |
| Goldman Sachs Group, Inc. (The) | 0.09% | 0.01% | 0.01% |
| Bank of America Corp. | 0.10% | 0.01% | 0.01% |
| Morgan Stanley | 0.09% | 0.01% | 0.01% |
| Boeing Co. (The) | 0.12% | 0.01% | 0.01% |
| Morgan Stanley | 0.08% | 0.01% | 0.01% |
| Morgan Stanley | 0.06% | 0.01% | 0.01% |
| Verizon Communications, Inc. | 0.08% | 0.01% | 0.01% |
| Deutsche Telekom International Finance BV | 0.11% | 0.01% | 0.01% |
| JPMorgan Chase & Co. | 0.06% | 0.01% | 0.01% |
| Citigroup, Inc. | 0.10% | 0.01% | 0.01% |
| Pfizer Investment Enterprises Pte. Ltd. | 0.11% | 0.01% | 0.01% |
| Bank of America Corp. | 0.08% | 0.01% | 0.01% |
| AerCap Ireland Capital DAC / AerCap Global Aviation Trust | 0.09% | 0.01% | 0.01% |
| Bank of America Corp. | 0.10% | 0.01% | 0.01% |
| Bank of America Corp. | 0.09% | 0.01% | 0.01% |
Showing the top 250 of 4160 shared holdings by overlap weight.
Frequently Asked Questions
How much do IGSB and IUSB overlap?
IGSB and IUSB overlap by 10.3% of portfolio weight. They share 4160 holdings (IGSB holds 4605 positions and IUSB holds 17783), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IGSB and IUSB?
The two portfolios are 10.3% identical by weight. Owning both is not redundant. Most of each portfolio is distinct, so the funds can serve different roles.
What are the biggest shared holdings of IGSB and IUSB?
The largest positions held by both funds are Bank of America Corp., Goldman Sachs Group, Inc. (The), T-Mobile USA, Inc., Goldman Sachs Group, Inc. (The) and AbbVie, Inc.. Together the top 10 shared positions account for 1% of the total overlap.
What does IGSB own that IUSB doesn't?
445 positions (6.8% of IGSB) are unique to IGSB, led by Eagle Funding Luxco Sarl, Meta Platforms Inc and Saudi Arabian Oil Co. In the other direction, 13623 positions (88.1% of IUSB) are unique to IUSB.