IEI vs AGG: Holdings Overlap
IEIiShares 3-7 Year Treasury Bond ETF
iShares · 83 holdings · $17.6B · 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 IEI and AGG?
iShares 3-7 Year Treasury Bond ETF (IEI, by iShares) holds 83 positions; iShares Core U.S. Aggregate Bond ETF (AGG, by iShares) holds 13266. They have 83 holdings in common, and by portfolio weight the two funds are 15.7% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 15.7%Sum of the smaller weight of each shared holding
- Shared Holdings
- 83IEI holds 83 · AGG holds 13266
- Weight in Shared Holdings
- IEI 99%·AGG 16%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 IEI
Every position in IEI is also held by AGG, so it brings nothing the other fund doesn’t already own.
Only in AGG
13183 of 13266 positions (82.8% of the fund) are not held by IEI. Showing the top 30 by weight.
- U.S. Treasury Notes0.42%
- U.S. Treasury Notes0.41%
- U.S. Treasury Notes0.40%
- U.S. Treasury Notes0.40%
- U.S. Treasury Notes0.39%
- U.S. Treasury Notes0.39%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IEI | +0.1% | -0.2% | +1.6% | +3.9% | +0.2% | +1.2% | 3.70% |
| 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 IEI vs AGG →
Shared Holdings(83)
The top 10 shared positions account for 20% of the overlap, led by U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes.
| U.S. Treasury Notes | 2.28% | 0.41% | 0.41% |
|---|---|---|---|
| U.S. Treasury Notes | 2.09% | 0.33% | 0.33% |
| U.S. Treasury Notes | 0.58% | 0.33% | 0.33% |
| U.S. Treasury Notes | 2.26% | 0.32% | 0.32% |
| U.S. Treasury Notes | 1.12% | 0.31% | 0.31% |
| U.S. Treasury Notes | 2.11% | 0.31% | 0.31% |
| U.S. Treasury Notes | 0.70% | 0.31% | 0.31% |
| U.S. Treasury Notes | 1.04% | 0.30% | 0.30% |
| U.S. Treasury Notes | 2.05% | 0.29% | 0.29% |
| U.S. Treasury Notes | 1.13% | 0.29% | 0.29% |
| U.S. Treasury Notes | 1.93% | 0.29% | 0.29% |
| U.S. Treasury Notes | 1.41% | 0.29% | 0.29% |
| U.S. Treasury Notes | 0.98% | 0.28% | 0.28% |
| U.S. Treasury Notes | 1.75% | 0.27% | 0.27% |
| U.S. Treasury Notes | 2.08% | 0.27% | 0.27% |
| U.S. Treasury Notes | 0.59% | 0.27% | 0.27% |
| U.S. Treasury Notes | 1.62% | 0.26% | 0.26% |
| U.S. Treasury Notes | 1.82% | 0.25% | 0.25% |
| U.S. Treasury Notes | 1.12% | 0.24% | 0.24% |
| U.S. Treasury Notes | 1.39% | 0.24% | 0.24% |
| U.S. Treasury Notes | 2.09% | 0.24% | 0.24% |
| U.S. Treasury Notes | 1.49% | 0.23% | 0.23% |
| U.S. Treasury Notes | 1.26% | 0.22% | 0.22% |
| U.S. Treasury Notes | 1.49% | 0.22% | 0.22% |
| U.S. Treasury Notes | 1.92% | 0.22% | 0.22% |
Frequently Asked Questions
How much do IEI and AGG overlap?
IEI and AGG overlap by 15.7% of portfolio weight. They share 83 holdings (IEI holds 83 positions and AGG holds 13266), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IEI and AGG?
The two portfolios are 15.7% 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 IEI and AGG?
The largest positions held by both funds are U.S. Treasury Notes, U.S. Treasury Notes, U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes. Together the top 10 shared positions account for 20% of the total overlap.
What does IEI own that AGG doesn't?
Nothing. Every position in IEI is also held by AGG. In the other direction, 13183 positions (82.8% of AGG) are unique to AGG.