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ETF comparison

BNDvsIUSB

Both US Aggregate Bond.

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

Holdings overlap

Weighted by ISIN/CUSIP
56.3%

8,828 positions appear in both funds. Buying equal dollars of BND and IUSB would leave roughly56.3%of each dollar exposed to the same underlying securities.

BND only 42.7%Shared 56.3%IUSB only 44.9%
In BND only
8,568 positions
Shared
8,828 positions
In IUSB only
8,951 positions

Side by side

BND

Vanguard Total Bond Market Index Fund ETF Shares

Vanguard · US Aggregate Bond

89composite / 100
Expense ratio
0.030%
Net assets
$398.83B
TTM yield
4.11%
Top-10 conc.
4.6%
IUSB

iShares Core Universal USD Bond ETF

iShares · US Aggregate Bond

88composite / 100
Expense ratio
0.060%
Net assets
$43.79B
TTM yield
4.36%
Top-10 conc.
6.7%

Sub-score comparison

97
Cost
94
52
Tax efficiency
52
100
Liquidity
100
100
Concentration
100
—
Tracking quality
—
BNDsub-scoreIUSB

Tracking quality isn't part of the composite — seewhat we don't scorefor 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 thecost calculator pre-filled with BND vs IUSB.

Top shared holdings

8,828 shared in total
#HoldingIn BNDIn IUSBOverlap
1United States Treasury Note/Bond0.41%0.37%0.37%
2United States Treasury Note/Bond0.41%0.37%0.37%
3United States Treasury Note/Bond0.41%0.37%0.37%
4United States Treasury Note/Bond0.40%0.36%0.36%
5United States Treasury Note/Bond0.36%0.36%0.36%
6United States Treasury Note/Bond0.41%0.36%0.36%
7United States Treasury Note/Bond0.39%0.35%0.35%
8United States Treasury Note/Bond0.39%0.34%0.34%
9United States Treasury Note/Bond0.34%0.37%0.34%
10United States Treasury Note/Bond0.36%0.33%0.33%
11United States Treasury Note/Bond0.31%0.31%0.31%
12United States Treasury Note/Bond0.41%0.29%0.29%

Only in BND

8,568 total
  • United States Treasury Note/Bond0.33%
  • United States Treasury Note/Bond0.25%
  • United States Treasury Note/Bond0.21%
  • United States Treasury Note/Bond0.19%
  • United States Treasury Note/Bond0.18%
  • United States Treasury Note/Bond0.18%
  • United States Treasury Note/Bond0.17%
  • United States Treasury Note/Bond0.14%
  • United States Treasury Note/Bond0.13%
  • United States Treasury Note/Bond0.13%

Only in IUSB

8,951 total
  • Blackrock Liquidity Tempcash2.88%
  • United States of America0.26%
  • United States of America0.24%
  • United States of America0.24%
  • Federal National Mortgage Association or Federal Home Loan Mortgage Corp.0.22%
  • United States of America0.22%
  • Government National Mortgage Association0.21%
  • Federal National Mortgage Association or Federal Home Loan Mortgage Corp.0.20%
  • United States of America0.19%
  • Federal National Mortgage Association or Federal Home Loan Mortgage Corp.0.19%

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 methodologyand 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.