USIG vs AGG: Holdings Overlap
USIGiShares Broad USD Investment Grade Corporate Bond ETF
iShares · 11458 holdings · $17.3B · as of 2026-05-31
AGGiShares Core U.S. Aggregate Bond ETF
iShares · 13266 holdings · $137.7B · as of 2026-05-31
How similar are USIG and AGG?
iShares Broad USD Investment Grade Corporate Bond ETF (USIG, by iShares) holds 11458 positions; iShares Core U.S. Aggregate Bond ETF (AGG, by iShares) holds 13266. They have 8716 holdings in common, and by portfolio weight the two funds are 24.4% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 24.4%Sum of the smaller weight of each shared holding
- Shared Holdings
- 8716USIG holds 11458 · AGG holds 13266
- Weight in Shared Holdings
- USIG 80%·AGG 24%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 USIG
2742 of 11458 positions (18.9% of the fund) are not held by AGG. Showing the top 30 by weight.
- Eagle Funding Luxco Sarl0.08%
- Mars Inc0.05%
- Mars Inc0.05%
- UBS Group AG0.04%
- Mars Inc0.04%
- QTS Fayetteville I Dc1-2 LLC / QTS TRS Fayetteville I DC1-2 LLC0.04%
Only in AGG
4550 of 13266 positions (74.0% of the fund) are not held by USIG. 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%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| USIG | -0.4% | +0.1% | +2.6% | +5.4% | +0.2% | +2.4% | 4.82% |
| AGG | -0.3% | +0.0% | +2.4% | +4.2% | -0.2% | +1.4% | 4.04% |
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 USIG vs AGG →
Shared Holdings(8716)
The top 10 shared positions account for 1% of the overlap, led by Anheuser-Busch Cos LLC / Anheuser-Busch InBev Worldwide Inc, CVS Health Corp and T-Mobile USA Inc.
| Anheuser-Busch Cos LLC / Anheuser-Busch InBev Worldwide Inc | 0.09% | 0.03% | 0.03% |
|---|---|---|---|
| CVS Health Corp | 0.08% | 0.02% | 0.02% |
| T-Mobile USA Inc | 0.07% | 0.02% | 0.02% |
| Bank of America Corp | 0.05% | 0.02% | 0.02% |
| Goldman Sachs Group Inc/The | 0.06% | 0.02% | 0.02% |
| Bank of America Corp | 0.09% | 0.02% | 0.02% |
| Pfizer Investment Enterprises Pte Ltd | 0.06% | 0.02% | 0.02% |
| Goldman Sachs Group Inc/The | 0.06% | 0.02% | 0.02% |
| AbbVie Inc | 0.06% | 0.02% | 0.02% |
| Bank of America Corp | 0.06% | 0.02% | 0.02% |
| Goldman Sachs Group Inc/The | 0.07% | 0.02% | 0.02% |
| Goldman Sachs Group Inc/The | 0.06% | 0.02% | 0.02% |
| Amazon.com Inc | 0.04% | 0.02% | 0.02% |
| Wells Fargo & Co | 0.06% | 0.02% | 0.02% |
| Boeing Co/The | 0.06% | 0.02% | 0.02% |
| Bank of America Corp | 0.05% | 0.02% | 0.02% |
| Anheuser-Busch Cos LLC / Anheuser-Busch InBev Worldwide Inc | 0.06% | 0.02% | 0.02% |
| Wells Fargo & Co | 0.04% | 0.02% | 0.02% |
| Goldman Sachs Group Inc/The | 0.04% | 0.02% | 0.02% |
| Meta Platforms Inc | 0.05% | 0.02% | 0.02% |
| Pfizer Investment Enterprises Pte Ltd | 0.05% | 0.02% | 0.02% |
| JPMorgan Chase & Co | 0.04% | 0.02% | 0.02% |
| AT&T Inc | 0.06% | 0.02% | 0.02% |
| AT&T Inc | 0.05% | 0.02% | 0.02% |
| Bank of America Corp | 0.05% | 0.02% | 0.02% |
Showing the top 250 of 8716 shared holdings by overlap weight.
Frequently Asked Questions
How much do USIG and AGG overlap?
USIG and AGG overlap by 24.4% of portfolio weight. They share 8716 holdings (USIG holds 11458 positions and AGG holds 13266), based on each fund's latest SEC-reported holdings.
Is it redundant to own both USIG and AGG?
The two portfolios are 24.4% 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 USIG and AGG?
The largest positions held by both funds are Anheuser-Busch Cos LLC / Anheuser-Busch InBev Worldwide Inc, CVS Health Corp, T-Mobile USA Inc, Bank of America Corp and Goldman Sachs Group Inc/The. Together the top 10 shared positions account for 1% of the total overlap.
What does USIG own that AGG doesn't?
2742 positions (18.9% of USIG) are unique to USIG, led by Eagle Funding Luxco Sarl, Mars Inc and Mars Inc. In the other direction, 4550 positions (74.0% of AGG) are unique to AGG.