AGZ vs BLV: Holdings Overlap
iShares · 98 holdings · $563M · as of 2026-05-31
BLVVanguard Long-term Bond Index Fund
Vanguard · 3013 holdings · $5.8B · as of 2026-03-31
Holdings snapshots are 61 days apart (AGZ: 2026-05-31, BLV: 2026-03-31). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are AGZ and BLV?
iShares Agency Bond ETF (AGZ, by iShares) holds 98 positions; Vanguard Long-term Bond Index Fund (BLV, by Vanguard) holds 3013. They have 16 holdings in common, and by portfolio weight the two funds are 0.7% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 0.7%Sum of the smaller weight of each shared holding
- Shared Holdings
- 16AGZ holds 98 · BLV holds 3013
- Weight in Shared Holdings
- AGZ 10%·BLV 1%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 AGZ
82 of 98 positions (83.9% of the fund) are not held by BLV. Showing the top 30 by weight.
- Federal National Mortgage Association13.29%
- Federal Home Loan Bank Bonds5.66%
- Federal National Mortgage Association5.66%
- Federal Farm Credit Bank Bonds4.70%
- Federal National Mortgage Association3.68%
- Federal National Mortgage Association3.55%
Only in BLV
2997 of 3013 positions (98.0% of the fund) are not held by AGZ. Showing the top 30 by weight.
- U.S. Treasury Bonds1.23%
- U.S. Treasury Bonds1.21%
- U.S. Treasury Bonds1.18%
- U.S. Treasury Bonds1.18%
- U.S. Treasury Bonds1.18%
- U.S. Treasury Bonds1.14%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| AGZ | +0.2% | +0.7% | +2.8% | +4.3% | +1.1% | +1.8% | 3.69% |
| BLV | -1.5% | -1.9% | +0.2% | +2.5% | -4.7% | +0.3% | 4.94% |
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 AGZ vs BLV →
Shared Holdings(16)
The top 10 shared positions account for 93% of the overlap, led by U.S. Treasury Bonds, Tennessee Valley Authority and Federal National Mortgage Association.
| U.S. Treasury Bonds | 0.69% | 0.41% | 0.41% |
|---|---|---|---|
| Tennessee Valley Authority | 1.22% | 0.05% | 0.05% |
| Federal National Mortgage Association | 0.94% | 0.04% | 0.04% |
| Federal Home Loan Bank Bonds | 1.23% | 0.04% | 0.04% |
| Tennessee Valley Authority | 1.53% | 0.03% | 0.03% |
| Tennessee Valley Authority | 0.50% | 0.03% | 0.03% |
| Tennessee Valley Authority | 0.18% | 0.02% | 0.02% |
| Tennessee Valley Authority | 0.05% | 0.02% | 0.02% |
| Federal National Mortgage Association | 0.52% | 0.01% | 0.01% |
| Tennessee Valley Authority | 0.55% | 0.01% | 0.01% |
| Tennessee Valley Authority | 0.47% | 0.01% | 0.01% |
| Federal Home Loan Bank Bonds | 0.40% | 0.01% | 0.01% |
| Tennessee Valley Authority | 0.68% | 0.01% | 0.01% |
| Tennessee Valley Authority | 0.43% | 0.01% | 0.01% |
| Tennessee Valley Authority | 0.41% | 0.00% | 0.00% |
| Federal Home Loan Mortgage Corp. | 0.36% | 0.00% | 0.00% |
Frequently Asked Questions
How much do AGZ and BLV overlap?
AGZ and BLV overlap by 0.7% of portfolio weight. They share 16 holdings (AGZ holds 98 positions and BLV holds 3013), based on each fund's latest SEC-reported holdings.
Is it redundant to own both AGZ and BLV?
The two portfolios are 0.7% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of AGZ and BLV?
The largest positions held by both funds are U.S. Treasury Bonds, Tennessee Valley Authority, Federal National Mortgage Association, Federal Home Loan Bank Bonds and Tennessee Valley Authority. Together the top 10 shared positions account for 93% of the total overlap.
What does AGZ own that BLV doesn't?
82 positions (83.9% of AGZ) are unique to AGZ, led by Federal National Mortgage Association, Federal Home Loan Bank Bonds and Federal National Mortgage Association. In the other direction, 2997 positions (98.0% of BLV) are unique to BLV.