ETF comparison
IUSBvsVCRB
Both US Aggregate Bond.
iShares Core Universal USD Bond ETF · Vanguard Core Bond ETF
Holdings overlap
1,883 positions appear in both funds. Buying equal dollars of IUSB and VCRB would leave roughly13.9%of each dollar exposed to the same underlying securities.
Side by side
Sub-score comparison
Tracking quality isn't part of the composite — seewhat we don't scorefor why.
Cost difference
IUSB is 4 bps cheaper than VCRB. On a $100,000 position that's about $40/yr more in fees for VCRB.
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 IUSB vs VCRB.
Top shared holdings
1,883 shared in total| # | Holding | In IUSB | In VCRB | Overlap |
|---|---|---|---|---|
| 1 | United States of America | 0.37% | 0.51% | 0.37% |
| 2 | United States of America | 0.36% | 0.52% | 0.36% |
| 3 | United States of America | 0.29% | 0.41% | 0.29% |
| 4 | United States of America | 0.27% | 0.54% | 0.27% |
| 5 | United States of America | 0.21% | 0.43% | 0.21% |
| 6 | United States of America | 0.19% | 1.02% | 0.19% |
| 7 | United States of America | 0.18% | 0.18% | 0.18% |
| 8 | United States of America | 0.16% | 0.16% | 0.16% |
| 9 | United States of America | 0.19% | 0.16% | 0.16% |
| 10 | United States of America | 0.17% | 0.16% | 0.16% |
| 11 | United States of America | 0.15% | 0.15% | 0.15% |
| 12 | United States of America | 0.15% | 0.35% | 0.15% |
Only in IUSB
15,896 total- Blackrock Liquidity Tempcash2.88%
- United States of America0.37%
- United States of America0.37%
- United States of America0.37%
- United States of America0.36%
- United States of America0.36%
- United States of America0.35%
- United States of America0.34%
- United States of America0.34%
- United States of America0.33%
Only in VCRB
1,531 total- Fannie Mae or Freddie Mac2.33%
- NVIDIA Corp0.97%
- NVIDIA Corp0.75%
- Fannie Mae or Freddie Mac0.68%
- Kreditanstalt fuer Wiederaufbau0.60%
- Fannie Mae REMICS0.59%
- OBX 2026-INV2 Trust0.57%
- Ginnie Mae II Pool0.56%
- United States Treasury Note/Bond0.55%
- Finland Government International Bond0.54%
Open IUSB or VCRB 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 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.