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ETF comparison

AGG vs BND

Both US Aggregate Bond.

iShares Core U.S. Aggregate Bond ETF · Vanguard Total Bond Market Index Fund

Holdings overlap

Weighted by ISIN/CUSIP
64.9 %

9,202 positions appear in both funds. Buying equal dollars of AGG and BND would leave roughly 64.9% of each dollar exposed to the same underlying securities.

AGG only 34.1% Shared 64.9% BND only 33.9%
In AGG only
3,981 positions
Shared
9,202 positions
In BND only
8,158 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
$138.85B
TTM yield
4.01%
Top-10 conc.
7.1%
BND

Vanguard Total Bond Market Index Fund

Vanguard · US Aggregate Bond

89 composite / 100
Expense ratio
0.030%
Net assets
$397.86B
TTM yield
3.99%
Top-10 conc.
4.8%

Sub-score comparison

97
Cost
97
52
Tax efficiency
53
100
Liquidity
100
100
Concentration
100
—
Tracking quality
—
AGG sub-score BND

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 BND.

Top shared holdings

9,202 shared in total
# Holding In AGG In BND Overlap
1 United States Treasury 0.42% 0.42% 0.42%
2 United States Treasury 0.46% 0.42% 0.42%
3 United States Treasury 0.42% 0.41% 0.41%
4 United States Treasury 0.41% 0.42% 0.41%
5 United States Treasury 0.41% 0.40% 0.40%
6 United States Treasury 0.40% 0.41% 0.40%
7 United States Treasury 0.41% 0.39% 0.39%
8 United States Treasury 0.39% 0.39% 0.39%
9 United States Treasury 0.39% 0.36% 0.36%
10 United States Treasury 0.40% 0.35% 0.35%
11 United States Treasury 0.38% 0.35% 0.35%
12 United States Treasury 0.35% 0.36% 0.35%

Only in AGG

3,981 total
  • BlackRock Funds III 0.52%
  • United States Treasury 0.27%
  • UMBS, TBA 0.22%
  • UMBS, TBA 0.21%
  • United States Treasury 0.20%
  • UMBS, TBA 0.17%
  • UMBS, TBA 0.15%
  • United States Treasury 0.14%
  • Fannie Mae 0.14%
  • Fannie Mae 0.13%

Only in BND

8,158 total
  • United States Treasury Note/Bond 0.19%
  • United States Treasury Note/Bond 0.18%
  • United States Treasury Note/Bond 0.17%
  • United States Treasury Note/Bond 0.13%
  • United States Treasury Note/Bond 0.11%
  • United States Treasury Note/Bond 0.10%
  • United States Treasury Note/Bond 0.10%
  • Ginnie Mae II Pool 0.08%
  • United States Treasury Note/Bond 0.08%
  • Ginnie Mae II Pool 0.07%

Open AGG or BND at a brokerage

Both funds trade commission-free at major US brokerages.

Open at Fidelity

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.