AGZ vs SPY: Holdings Overlap
iShares · 98 holdings · $563M · as of 2026-05-31
SPYState Street® SPDR® S&P 500® ETF Trust
State Street (SPDR) · 504 holdings · $812.0B · as of 2026-08-06
Holdings snapshots are 67 days apart (AGZ: 2026-05-31, SPY: 2026-08-06). 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 SPY?
iShares Agency Bond ETF (AGZ, by iShares) holds 98 positions; State Street® SPDR® S&P 500® ETF Trust (SPY, by State Street (SPDR)) holds 504. They have 0 holdings in common, and by portfolio weight the two funds are 0.0% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 0.0%Sum of the smaller weight of each shared holding
- Shared Holdings
- 0AGZ holds 98 · SPY holds 504
- Weight in Shared Holdings
- AGZ 0%·SPY 0%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
98 of 98 positions (94.1% of the fund) are not held by SPY. 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%
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% |
| SPY | +3.4% | +14.0% | +23.7% | +21.2% | +13.3% | +15.3% | 0.97% |
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 SPY →
Shared Holdings(0)
These two funds have no holdings in common.
Frequently Asked Questions
How much do AGZ and SPY overlap?
AGZ and SPY overlap by 0.0% of portfolio weight. They share 0 holdings (AGZ holds 98 positions and SPY holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both AGZ and SPY?
The two portfolios are 0.0% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What does AGZ own that SPY doesn't?
98 positions (94.1% 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, 504 positions (99.9% of SPY) are unique to SPY.