AGG vs GBF: fund overlap

ETF comparisons  /  AGG vs GBF

US aggregate bond comparison · Holdings dated 2026-08-27

AGG vs GBF

iShares Core U.S. Aggregate Bond ETF compared with iShares Government/Credit Bond ETF

The funds share a substantial core but differ outside it.AGG has 11,377 companies outside the overlap; GBF has 4.
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
GBFbond

iShares Government/Credit Bond ETF

3,217holdings
0.20%annual fee
USmarket
ValuationNot available for this holdings date
GBF holdings and fund profile

Price development

Both lines rebased to 0% over their shared dates

Largest shared positions

2,007 companies held in both funds

AGG weight GBF weight
Shared companyAGG GBF
United States Treasury T
0.40%
0.75%
United States Treasury T
0.40%
0.65%
United States Treasury Note/Bond T
0.39%
0.52%
United States Treasury T
0.39%
0.67%
United States Treasury T
0.39%
0.75%
United States Treasury T
0.38%
0.65%
United States Treasury T
0.38%
0.44%
United States Treasury T
0.38%
0.61%
United States Treasury T
0.37%
0.73%
TREASURY NOTE T
0.37%
0.64%
United States Treasury T
0.34%
0.44%
United States Treasury T
0.33%
0.63%
United States Treasury T
0.33%
0.53%
United States Treasury T
0.33%
0.62%
United States Treasury T
0.31%
0.58%
United States Treasury T
0.31%
0.33%
United States Treasury Note/Bond T
0.31%
0.46%
United States Treasury T
0.30%
0.44%
TREASURY NOTE T
0.30%
0.45%
United States Treasury
0.28%
0.51%
United States Treasury T
0.28%
0.41%
United States Treasury T
0.28%
0.72%
United States Treasury T
0.28%
0.50%
United States Treasury T
0.27%
0.60%
United States Treasury T
0.27%
0.62%

AGG and GBF questions

Based on the holdings compared above

How much do AGG and GBF overlap?

AGG and GBF overlap by 41.7% by weight, across 2,007 shared companies.

Which companies do AGG and GBF both hold?

The largest companies held in both funds are United States Treasury, United States Treasury, United States Treasury Note/Bond, United States Treasury, United States Treasury.

Can I hold both AGG and GBF?

Holding both means 41.7% 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 GBF cheaper?

AGG has a 0.03% expense ratio and GBF has 0.20%.

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