IAGG vs VOO: Holdings Overlap
IAGGiShares Core International Aggregate Bond ETF
iShares · 7836 holdings · $11.4B · as of 2026-04-30
Vanguard · 504 holdings · $1.03T · as of 2026-03-31
Holdings snapshots are 30 days apart (IAGG: 2026-04-30, VOO: 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 IAGG and VOO?
iShares Core International Aggregate Bond ETF (IAGG, by iShares) holds 7836 positions; Vanguard 500 Index Fund (VOO, by Vanguard) 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
- 0IAGG holds 7836 · VOO holds 504
- Weight in Shared Holdings
- IAGG 0%·VOO 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 IAGG
7836 of 7836 positions (100.3% of the fund) are not held by VOO. Showing the top 30 by weight.
- China Government Bond0.70%
- China Government Bond0.70%
- China Government Bond0.54%
- China Development Bank0.52%
- China Government Bond0.51%
- China Government Bond0.49%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IAGG | +0.2% | +1.5% | +2.1% | +4.8% | +0.9% | +2.0% | 4.50% |
| VOO | +3.4% | +14.0% | +23.7% | +21.3% | +13.4% | +15.4% | 1.03% |
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 IAGG vs VOO →
Shared Holdings(0)
These two funds have no holdings in common.
Frequently Asked Questions
How much do IAGG and VOO overlap?
IAGG and VOO overlap by 0.0% of portfolio weight. They share 0 holdings (IAGG holds 7836 positions and VOO holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IAGG and VOO?
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 IAGG own that VOO doesn't?
7836 positions (100.3% of IAGG) are unique to IAGG, led by China Government Bond, China Government Bond and China Government Bond. In the other direction, 504 positions (99.8% of VOO) are unique to VOO.