IGSB vs USIG: Holdings Overlap
IGSBiShares 1-5 Year Investment Grade Corporate Bond ETF
iShares · 4605 holdings · $23.2B · as of 2026-05-31
USIGiShares Broad USD Investment Grade Corporate Bond ETF
iShares · 11458 holdings · $17.3B · as of 2026-05-31
How similar are IGSB and USIG?
iShares 1-5 Year Investment Grade Corporate Bond ETF (IGSB, by iShares) holds 4605 positions; iShares Broad USD Investment Grade Corporate Bond ETF (USIG, by iShares) holds 11458. They have 4556 holdings in common, and by portfolio weight the two funds are 41.1% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 41.1%Sum of the smaller weight of each shared holding
- Shared Holdings
- 4556IGSB holds 4605 · USIG holds 11458
- Weight in Shared Holdings
- IGSB 99%·USIG 42%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
49 of 4605 positions (0.4% of the fund) are not held by USIG. Showing the top 30 by weight.
- US Bank NA/Cincinnati OH0.04%
- Comcast Corp0.03%
- Oversea-Chinese Banking Corp Ltd0.02%
- Royal Caribbean Cruises Ltd0.02%
- Momentive Performance Materials Inc0.02%
- DAE Sukuk Difc Ltd0.02%
Only in USIG
6902 of 11458 positions (57.4% of the fund) are not held by IGSB. Showing the top 30 by weight.
- Anheuser-Busch Cos LLC / Anheuser-Busch InBev Worldwide Inc0.09%
- CVS Health Corp0.08%
- Meta Platforms Inc0.06%
- Goldman Sachs Group Inc/The0.06%
- Goldman Sachs Group Inc/The0.06%
- Pfizer Investment Enterprises Pte Ltd0.06%
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% |
| USIG | -0.4% | +0.1% | +2.6% | +5.4% | +0.2% | +2.4% | 4.82% |
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 USIG →
Shared Holdings(4556)
The top 10 shared positions account for 2% of the overlap, led by Bank of America Corp, Eagle Funding Luxco Sarl and T-Mobile USA Inc.
| Bank of America Corp | 0.16% | 0.09% | 0.09% |
|---|---|---|---|
| Eagle Funding Luxco Sarl | 0.31% | 0.08% | 0.08% |
| T-Mobile USA Inc | 0.18% | 0.07% | 0.07% |
| Goldman Sachs Group Inc/The | 0.09% | 0.07% | 0.07% |
| Goldman Sachs Group Inc/The | 0.12% | 0.06% | 0.06% |
| CVS Health Corp | 0.13% | 0.06% | 0.06% |
| AbbVie Inc | 0.14% | 0.06% | 0.06% |
| Boeing Co/The | 0.12% | 0.05% | 0.05% |
| Wells Fargo & Co | 0.11% | 0.05% | 0.05% |
| JPMorgan Chase & Co | 0.09% | 0.05% | 0.05% |
| Bank of America Corp | 0.11% | 0.05% | 0.05% |
| Oracle Corp | 0.09% | 0.04% | 0.04% |
| Bank of America Corp | 0.07% | 0.04% | 0.04% |
| Morgan Stanley | 0.09% | 0.04% | 0.04% |
| Deutsche Telekom International Finance BV | 0.11% | 0.04% | 0.04% |
| Pfizer Investment Enterprises Pte Ltd | 0.11% | 0.04% | 0.04% |
| Morgan Stanley | 0.09% | 0.04% | 0.04% |
| Bank of America Corp | 0.06% | 0.04% | 0.04% |
| Amazon.com Inc | 0.13% | 0.04% | 0.04% |
| Mars Inc | 0.12% | 0.04% | 0.04% |
| Citigroup Inc | 0.10% | 0.04% | 0.04% |
| JPMorgan Chase & Co | 0.08% | 0.04% | 0.04% |
| Bank of America Corp | 0.09% | 0.04% | 0.04% |
| Bank of America Corp | 0.10% | 0.04% | 0.04% |
| Bank of America Corp | 0.07% | 0.04% | 0.04% |
Showing the top 250 of 4556 shared holdings by overlap weight.
Frequently Asked Questions
How much do IGSB and USIG overlap?
IGSB and USIG overlap by 41.1% of portfolio weight. They share 4556 holdings (IGSB holds 4605 positions and USIG holds 11458), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IGSB and USIG?
The two portfolios are 41.1% identical by weight. Owning both is defensible: they share a meaningful core, but each fund adds exposure the other lacks.
What are the biggest shared holdings of IGSB and USIG?
The largest positions held by both funds are Bank of America Corp, Eagle Funding Luxco Sarl, T-Mobile USA Inc, Goldman Sachs Group Inc/The and Goldman Sachs Group Inc/The. Together the top 10 shared positions account for 2% of the total overlap.
What does IGSB own that USIG doesn't?
49 positions (0.4% of IGSB) are unique to IGSB, led by US Bank NA/Cincinnati OH, Comcast Corp and Oversea-Chinese Banking Corp Ltd. In the other direction, 6902 positions (57.4% of USIG) are unique to USIG.