AGG vs IGSB: Holdings Overlap
AGGiShares Core U.S. Aggregate Bond ETF
iShares · 13266 holdings · $137.7B · as of 2026-05-31
IGSBiShares 1-5 Year Investment Grade Corporate Bond ETF
iShares · 4605 holdings · $23.2B · as of 2026-05-31
How similar are AGG and IGSB?
iShares Core U.S. Aggregate Bond ETF (AGG, by iShares) holds 13266 positions; iShares 1-5 Year Investment Grade Corporate Bond ETF (IGSB, by iShares) holds 4605. They have 3287 holdings in common, and by portfolio weight the two funds are 9.9% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 9.9%Sum of the smaller weight of each shared holding
- Shared Holdings
- 3287AGG holds 13266 · IGSB holds 4605
- Weight in Shared Holdings
- AGG 10%·IGSB 76%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 AGG
9979 of 13266 positions (88.5% of the fund) are not held by IGSB. Showing the top 30 by weight.
- U.S. Treasury Notes0.42%
- U.S. Treasury Notes0.41%
- U.S. Treasury Notes0.41%
- U.S. Treasury Notes0.40%
- U.S. Treasury Notes0.40%
- U.S. Treasury Notes0.39%
Only in IGSB
1318 of 4605 positions (23.5% of the fund) are not held by AGG. Showing the top 30 by weight.
- Eagle Funding Luxco Sarl0.31%
- Mars Inc0.12%
- Bayer US Finance II LLC0.09%
- Saudi Arabian Oil Co0.08%
- Mars Inc0.08%
- UBS Group AG0.08%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| AGG | -0.3% | +0.0% | +2.4% | +4.2% | -0.2% | +1.4% | 4.04% |
| IGSB | +0.3% | +1.2% | +3.5% | +5.6% | +2.5% | +2.7% | 4.61% |
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 AGG vs IGSB →
Shared Holdings(3287)
The top 10 shared positions account for 2% of the overlap, led by T-Mobile USA Inc, Bank of America Corp and AbbVie Inc.
| T-Mobile USA Inc | 0.02% | 0.18% | 0.02% |
|---|---|---|---|
| Bank of America Corp | 0.02% | 0.16% | 0.02% |
| AbbVie Inc | 0.02% | 0.14% | 0.02% |
| Goldman Sachs Group Inc/The | 0.02% | 0.12% | 0.02% |
| Goldman Sachs Group Inc/The | 0.02% | 0.09% | 0.02% |
| Bank of America Corp | 0.02% | 0.11% | 0.02% |
| Deutsche Telekom International Finance BV | 0.01% | 0.11% | 0.01% |
| JPMorgan Chase & Co | 0.01% | 0.09% | 0.01% |
| Morgan Stanley | 0.01% | 0.09% | 0.01% |
| Wells Fargo & Co | 0.01% | 0.10% | 0.01% |
| Morgan Stanley | 0.01% | 0.09% | 0.01% |
| Pfizer Investment Enterprises Pte Ltd | 0.01% | 0.11% | 0.01% |
| Amgen Inc | 0.01% | 0.10% | 0.01% |
| Boeing Co/The | 0.01% | 0.12% | 0.01% |
| Bank of America Corp | 0.01% | 0.07% | 0.01% |
| AerCap Ireland Capital DAC / AerCap Global Aviation Trust | 0.01% | 0.09% | 0.01% |
| British Telecommunications PLC | 0.01% | 0.08% | 0.01% |
| Goldman Sachs Group Inc/The | 0.01% | 0.07% | 0.01% |
| Bank of America Corp | 0.01% | 0.09% | 0.01% |
| Citigroup Inc | 0.01% | 0.09% | 0.01% |
| CVS Health Corp | 0.01% | 0.13% | 0.01% |
| Cigna Group/The | 0.01% | 0.10% | 0.01% |
| Verizon Communications Inc | 0.01% | 0.08% | 0.01% |
| Citigroup Inc | 0.01% | 0.10% | 0.01% |
| Citigroup Inc | 0.01% | 0.10% | 0.01% |
Showing the top 250 of 3287 shared holdings by overlap weight.
Frequently Asked Questions
How much do AGG and IGSB overlap?
AGG and IGSB overlap by 9.9% of portfolio weight. They share 3287 holdings (AGG holds 13266 positions and IGSB holds 4605), based on each fund's latest SEC-reported holdings.
Is it redundant to own both AGG and IGSB?
The two portfolios are 9.9% 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 AGG and IGSB?
The largest positions held by both funds are T-Mobile USA Inc, Bank of America Corp, AbbVie 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 AGG own that IGSB doesn't?
9979 positions (88.5% of AGG) are unique to AGG, led by U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes. In the other direction, 1318 positions (23.5% of IGSB) are unique to IGSB.