AGGUS aggregate bond
iShares Core U.S. Aggregate Bond ETF
13,390holdings
0.03%annual fee
USmarket
ValuationNot available for this holdings date
AGG holdings and fund profile
ETF comparisons / AGG vs SPAB
US aggregate bond comparison · AGG 2026-08-27 · SPAB 2026-06-30
AGG vs SPAB
iShares Core U.S. Aggregate Bond ETF compared with State Street(R) SPDR(R) Portfolio Aggregate Bond ETF
The funds share a substantial core but differ outside it.AGG has 6,531 companies outside the overlap; SPAB has 1,432.
SPABbond
State Street(R) SPDR(R) Portfolio Aggregate Bond ETF
8,303holdings
0.03%annual fee
USmarket
ValuationNot available for this holdings date
SPAB holdings and fund profile
Price development
Both lines rebased to 0% over their shared dates
Largest shared positions
6,853 companies held in both funds
AGG weight
SPAB weight
| Shared company | AGG | SPAB |
|---|---|---|
| United States Treasury T | 0.40% | 0.39% |
| United States Treasury T | 0.38% | 0.39% |
| United States Treasury T | 0.40% | 0.36% |
| United States Treasury T | 0.39% | 0.36% |
| United States Treasury T | 0.41% | 0.36% |
| United States Treasury T | 0.39% | 0.36% |
| United States Treasury Note/Bond T | 0.39% | 0.35% |
| United States Treasury T | 0.37% | 0.33% |
| United States Treasury T | 0.39% | 0.33% |
| United States Treasury T | 0.38% | 0.32% |
| TREASURY NOTE T | 0.32% | 0.33% |
| United States Treasury T | 0.34% | 0.31% |
| United States Treasury Note/Bond T | 0.31% | 0.33% |
| United States Treasury T | 0.30% | 0.41% |
| United States Treasury T | 0.30% | 0.33% |
| TREASURY NOTE T | 0.30% | 0.42% |
| United States Treasury T | 0.30% | 0.29% |
| United States Treasury T | 0.28% | 0.30% |
| United States Treasury T | 0.31% | 0.27% |
| United States Treasury T | 0.27% | 0.27% |
| United States Treasury T | 0.27% | 0.26% |
| United States Treasury Note/Bond T | 0.26% | 0.28% |
| United States Treasury T | 0.26% | 0.26% |
| United States Treasury T | 0.25% | 0.32% |
| United States Treasury T | 0.25% | 0.38% |
AGG and SPAB questions
Based on the holdings compared above
How much do AGG and SPAB overlap?
AGG and SPAB overlap by 57.1% by weight, across 6,853 shared companies.
Which companies do AGG and SPAB both hold?
The largest companies held in both funds are United States Treasury, United States Treasury, United States Treasury, United States Treasury, United States Treasury.
Can I hold both AGG and SPAB?
Holding both means 57.1% of that part of your portfolio is the same companies counted twice. That can suit you or not depending on your goals; this tool reports the overlap rather than giving advice.
Is AGG or SPAB cheaper?
AGG has a 0.03% expense ratio and SPAB has 0.03%.
Compare your own portfolio
Open the analyzerSee the companies and duplicated exposure across every fund you hold.