AGG vs IEF: Holdings Overlap
AGGiShares Core U.S. Aggregate Bond ETF
iShares · 13266 holdings · $137.7B · as of 2026-05-31
IEFiShares 7-10 Year Treasury Bond ETF
iShares · 15 holdings · $47.3B · as of 2026-05-31
How similar are AGG and IEF?
iShares Core U.S. Aggregate Bond ETF (AGG, by iShares) holds 13266 positions; iShares 7-10 Year Treasury Bond ETF (IEF, by iShares) holds 15. They have 15 holdings in common, and by portfolio weight the two funds are 5.2% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 5.2%Sum of the smaller weight of each shared holding
- Shared Holdings
- 15AGG holds 13266 · IEF holds 15
- Weight in Shared Holdings
- AGG 5%·IEF 98%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
13251 of 13266 positions (93.3% of the fund) are not held by IEF. Showing the top 30 by weight.
- U.S. Treasury Notes0.41%
- U.S. Treasury Notes0.35%
- U.S. Treasury Notes0.33%
- U.S. Treasury Notes0.33%
- U.S. Treasury Notes0.32%
- U.S. Treasury Notes0.31%
Only in IEF
Every position in IEF is also held by AGG, so it brings nothing the other fund doesn’t already own.
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% |
| IEF | -0.2% | -0.9% | +1.3% | +3.1% | -1.6% | +0.5% | 3.95% |
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 IEF →
Shared Holdings(15)
The top 10 shared positions account for 76% of the overlap, led by U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes.
| U.S. Treasury Notes | 0.42% | 8.75% | 0.42% |
|---|---|---|---|
| U.S. Treasury Notes | 0.41% | 8.63% | 0.41% |
| U.S. Treasury Notes | 0.40% | 6.73% | 0.40% |
| U.S. Treasury Notes | 0.40% | 8.73% | 0.40% |
| U.S. Treasury Notes | 0.39% | 8.22% | 0.39% |
| U.S. Treasury Notes | 0.39% | 8.71% | 0.39% |
| U.S. Treasury Notes | 0.39% | 8.78% | 0.39% |
| U.S. Treasury Notes | 0.39% | 8.53% | 0.39% |
| U.S. Treasury Notes | 0.38% | 8.31% | 0.38% |
| U.S. Treasury Notes | 0.37% | 9.54% | 0.37% |
| U.S. Treasury Notes | 0.35% | 5.81% | 0.35% |
| U.S. Treasury Notes | 0.33% | 5.32% | 0.33% |
| U.S. Treasury Notes | 0.31% | 0.30% | 0.30% |
| U.S. Treasury Notes | 0.15% | 0.38% | 0.15% |
| U.S. Treasury Notes | 0.11% | 1.47% | 0.11% |
Frequently Asked Questions
How much do AGG and IEF overlap?
AGG and IEF overlap by 5.2% of portfolio weight. They share 15 holdings (AGG holds 13266 positions and IEF holds 15), based on each fund's latest SEC-reported holdings.
Is it redundant to own both AGG and IEF?
The two portfolios are 5.2% 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 IEF?
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 76% of the total overlap.
What does AGG own that IEF doesn't?
13251 positions (93.3% 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, 0 positions (0.0% of IEF) are unique to IEF.