AGG vs AGZ: Holdings Overlap
AGGiShares Core U.S. Aggregate Bond ETF
iShares · 13266 holdings · $137.7B · as of 2026-05-31
iShares · 98 holdings · $563M · as of 2026-05-31
How similar are AGG and AGZ?
iShares Core U.S. Aggregate Bond ETF (AGG, by iShares) holds 13266 positions; iShares Agency Bond ETF (AGZ, by iShares) holds 98. They have 24 holdings in common, and by portfolio weight the two funds are 0.2% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 0.2%Sum of the smaller weight of each shared holding
- Shared Holdings
- 24AGG holds 13266 · AGZ holds 98
- Weight in Shared Holdings
- AGG 0%·AGZ 34%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
13242 of 13266 positions (98.3% of the fund) are not held by AGZ. 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 AGZ
74 of 98 positions (59.6% of the fund) are not held by AGG. Showing the top 30 by weight.
- Federal National Mortgage Association13.29%
- Federal Home Loan Bank Bonds5.66%
- Federal Farm Credit Bank Bonds4.70%
- Federal Home Loan Bank Bonds3.51%
- Federal Home Loan Mortgage Corp.1.63%
- Federal Farm Credit Bank Bonds1.61%
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% |
| AGZ | +0.2% | +0.7% | +2.8% | +4.3% | +1.1% | +1.8% | 3.69% |
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 AGZ →
Shared Holdings(24)
The top 10 shared positions account for 92% of the overlap, led by U.S. Treasury Bonds, Federal Home Loan Mortgage Corp. and Federal Home Loan Bank Bonds.
| U.S. Treasury Bonds | 0.06% | 0.69% | 0.06% |
|---|---|---|---|
| Federal Home Loan Mortgage Corp. | 0.06% | 2.57% | 0.06% |
| Federal Home Loan Bank Bonds | 0.02% | 1.57% | 0.02% |
| Federal Home Loan Mortgage Corp. | 0.02% | 2.62% | 0.02% |
| Federal National Mortgage Association | 0.01% | 2.16% | 0.01% |
| Federal National Mortgage Association | 0.01% | 1.59% | 0.01% |
| Federal National Mortgage Association | 0.01% | 3.68% | 0.01% |
| Tennessee Valley Authority | 0.01% | 0.05% | 0.01% |
| Federal National Mortgage Association | 0.01% | 5.66% | 0.01% |
| Federal Home Loan Bank Bonds | 0.01% | 1.23% | 0.01% |
| Tennessee Valley Authority | 0.01% | 0.43% | 0.01% |
| Tennessee Valley Authority | 0.00% | 0.37% | 0.00% |
| Tennessee Valley Authority | 0.00% | 2.12% | 0.00% |
| Tennessee Valley Authority | 0.00% | 0.41% | 0.00% |
| Tennessee Valley Authority | 0.00% | 0.58% | 0.00% |
| Tennessee Valley Authority | 0.00% | 0.18% | 0.00% |
| Federal National Mortgage Association | 0.00% | 0.94% | 0.00% |
| Tennessee Valley Authority | 0.00% | 0.55% | 0.00% |
| Tennessee Valley Authority | 0.00% | 0.32% | 0.00% |
| Federal National Mortgage Association | 0.00% | 3.55% | 0.00% |
| Tennessee Valley Authority | 0.00% | 1.22% | 0.00% |
| Tennessee Valley Authority | 0.00% | 0.02% | 0.00% |
| Tennessee Valley Authority | 0.00% | 1.53% | 0.00% |
| Federal Home Loan Bank Bonds | 0.00% | 0.40% | 0.00% |
Frequently Asked Questions
How much do AGG and AGZ overlap?
AGG and AGZ overlap by 0.2% of portfolio weight. They share 24 holdings (AGG holds 13266 positions and AGZ holds 98), based on each fund's latest SEC-reported holdings.
Is it redundant to own both AGG and AGZ?
The two portfolios are 0.2% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of AGG and AGZ?
The largest positions held by both funds are U.S. Treasury Bonds, Federal Home Loan Mortgage Corp., Federal Home Loan Bank Bonds, Federal Home Loan Mortgage Corp. and Federal National Mortgage Association. Together the top 10 shared positions account for 92% of the total overlap.
What does AGG own that AGZ doesn't?
13242 positions (98.3% 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, 74 positions (59.6% of AGZ) are unique to AGZ.