Skip to main content

ETF comparison

AGG vs BIV

Both US Aggregate Bond.

iShares Core U.S. Aggregate Bond ETF · Vanguard Intermediate-Term Bond Index Fund ETF Shares

Holdings overlap

Weighted by ISIN/CUSIP
16.7 %

2,273 positions appear in both funds. Buying equal dollars of AGG and BIV would leave roughly 16.7% of each dollar exposed to the same underlying securities.

AGG unmatched 81.8% Shared 16.7% BIV unmatched 82.2%

Unmatched is the part of a fund's weight the other fund doesn't match: names only it holds, plus any extra weight it puts in names both funds hold.

In AGG only
10,993 positions
Shared
2,273 positions
In BIV only
82 positions

Side by side

AGG

iShares Core U.S. Aggregate Bond ETF

iShares · US Aggregate Bond

89 composite / 100
Expense ratio
0.030%
Net assets
$135.65B
TTM yield
4.13%
Top-10 conc.
4.0%
BIV

Vanguard Intermediate-Term Bond Index Fund ETF Shares

Vanguard · US Aggregate Bond

87 composite / 100
Expense ratio
0.030%
Net assets
$50.44B
whole fund, 5 share classes
TTM yield
4.46%
Top-10 conc.
20.9%

Sub-score comparison

97
Cost
97
52
Tax efficiency
52
100
Liquidity
100
100
Concentration
84
—
Tracking quality
—
AGG sub-score BIV

Tracking quality isn't part of the composite — see what we don't score for why.

Cost difference

Expense ratios are effectively identical (0.030% vs 0.030%).

Fee figure is the annual expense charged on $100,000. To see how the gap compounds over a multi-decade holding period, open the cost calculator pre-filled with AGG vs BIV.

Top shared holdings

2,273 shared in total
# Holding In AGG In BIV Overlap
1 United States Treasury 0.42% 2.08% 0.42%
2 United States Treasury 0.41% 2.08% 0.41%
3 United States Treasury 0.40% 2.02% 0.40%
4 United States Treasury 0.40% 2.10% 0.40%
5 United States Treasury 0.39% 2.04% 0.39%
6 United States Treasury 0.39% 2.04% 0.39%
7 United States Treasury 0.39% 2.14% 0.39%
8 United States Treasury 0.39% 1.94% 0.39%
9 United States Treasury 0.38% 2.13% 0.38%
10 United States Treasury 0.37% 2.14% 0.37%
11 United States Treasury 0.35% 1.84% 0.35%
12 United States Treasury 0.33% 1.65% 0.33%

Only in AGG

10,993 total
  • United States Treasury 0.41%
  • United States Treasury 0.35%
  • United States Treasury 0.33%
  • United States Treasury 0.31%
  • United States Treasury 0.31%
  • United States Treasury 0.31%
  • United States Treasury 0.30%
  • United States Treasury 0.30%
  • United States Treasury 0.29%
  • United States Treasury 0.29%

Only in BIV

82 total
  • United States Treasury Note/Bond 1.07%
  • United States Treasury Note/Bond 0.10%
  • Space Exploration Technologies Corp 0.08%
  • Space Exploration Technologies Corp 0.08%
  • NVIDIA Corp 0.06%
  • United States Treasury Note/Bond 0.06%
  • Corp Andina de Fomento 0.04%
  • NVIDIA Corp 0.04%
  • European Investment Bank 0.04%
  • Israel Government International Bond 0.03%

Percentages are holdings overlap with the named fund.

Open AGG or BIV at a brokerage

Both funds trade commission-free at major US brokerages.

Affiliate links — opening an account through these earns PlainIndex a one-time referral. Scoring is computed before any affiliate consideration; see our methodology and funding disclosure.

Holdings overlap is the sum of min(weight_a, weight_b) over positions matched on ISIN (CUSIP fallback). Methodology: see /methodology/.

Comparing two funds doesn't endorse swapping one for the other. Tax-lot history, account type, and personal goals matter — PlainIndex publishes data and methodology, not investment advice.