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ETF comparison

BND vs IUSB

Both US Aggregate Bond.

Vanguard Total Bond Market Index Fund · iShares Core Universal USD Bond ETF

Holdings overlap

Weighted by ISIN/CUSIP
57.8 %

9,018 positions appear in both funds. Buying equal dollars of BND and IUSB would leave roughly 57.8% of each dollar exposed to the same underlying securities.

BND only 41.0% Shared 57.8% IUSB only 43.5%
In BND only
8,342 positions
Shared
9,018 positions
In IUSB only
8,761 positions

Side by side

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%
IUSB

iShares Core Universal USD Bond ETF

iShares · US Aggregate Bond

88 composite / 100
Expense ratio
0.060%
Net assets
$42.77B
TTM yield
4.26%
Top-10 conc.
6.7%

Sub-score comparison

97
Cost
94
53
Tax efficiency
52
100
Liquidity
100
100
Concentration
100
—
Tracking quality
—
BND sub-score IUSB

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

Cost difference

BND is 3 bps cheaper than IUSB. On a $100,000 position that's about $30/yr more in fees for IUSB.

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 BND vs IUSB.

Top shared holdings

9,018 shared in total
# Holding In BND In IUSB Overlap
1 United States Treasury Note/Bond 0.42% 0.37% 0.37%
2 United States Treasury Note/Bond 0.42% 0.37% 0.37%
3 United States Treasury Note/Bond 0.41% 0.37% 0.37%
4 United States Treasury Note/Bond 0.36% 0.36% 0.36%
5 United States Treasury Note/Bond 0.40% 0.36% 0.36%
6 United States Treasury Note/Bond 0.41% 0.36% 0.36%
7 United States Treasury Note/Bond 0.35% 0.37% 0.35%
8 United States Treasury Note/Bond 0.39% 0.35% 0.35%
9 United States Treasury Note/Bond 0.39% 0.34% 0.34%
10 United States Treasury Note/Bond 0.36% 0.33% 0.33%
11 United States Treasury Note/Bond 0.32% 0.31% 0.31%
12 United States Treasury Note/Bond 0.34% 0.27% 0.27%

Only in BND

8,342 total
  • United States Treasury Note/Bond 0.21%
  • United States Treasury Note/Bond 0.18%
  • United States Treasury Note/Bond 0.18%
  • United States Treasury Note/Bond 0.16%
  • United States Treasury Note/Bond 0.15%
  • United States Treasury Note/Bond 0.13%
  • United States Treasury Note/Bond 0.10%
  • Ginnie Mae II Pool 0.08%
  • United States Treasury Note/Bond 0.08%
  • Federal National Mortgage Association 0.07%

Only in IUSB

8,761 total
  • Blackrock Liquidity Tempcash 2.88%
  • Federal National Mortgage Association or Federal Home Loan Mortgage Corp. 0.22%
  • Federal National Mortgage Association or Federal Home Loan Mortgage Corp. 0.20%
  • Government National Mortgage Association 0.18%
  • Federal Home Loan Mortgage Corp. 0.13%
  • United States of America 0.12%
  • Federal National Mortgage Association or Federal Home Loan Mortgage Corp. 0.11%
  • Federal National Mortgage Association or Federal Home Loan Mortgage Corp. 0.11%
  • Federal National Mortgage Association 0.11%
  • Federal Home Loan Mortgage Corp. 0.10%

Open BND or IUSB 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.