iShares Core US Aggregate Bond ETF
Tracks Bloomberg US Aggregate
The four numbers that price an ETF.
What the ETF actually owns.
From the most recent SEC N-PORT filing. The top-10 weight tells you how concentrated the fund is — broad-market trackers run 25-30%, single-theme funds often 50-70%.
| # | Holding | Weight | Value (USD) | Asset class |
|---|---|---|---|---|
| 1 | BLACKROCK CASH FUNDS | 3.19% | $4.51 B | STIV |
| 2 | BlackRock Funds III | 0.52% | $736 M | STIV |
| 3 | United States Treasury | 0.40% | $571 M | DBT |
| 4 | UMBS, TBA | 0.15% | $212 M | ABS-MBS |
| 5 | Freddie Mac | 0.03% | $46 M | ABS-MBS |
| 6 | State of Illinois | 0.02% | $30 M | DBT |
| 7 | Bank of America Credit Card Trust | 0.02% | $30 M | ABS-O |
| 8 | ANHEUSER-BUSCH CO/INBEV | 0.02% | $24 M | DBT |
| 9 | ABBVIE INC | 0.01% | $21 M | DBT |
| 10 | DEUTSCHE TELEKOM INT FIN | 0.01% | $21 M | DBT |
| 11 | UNITED MEXICAN STATES | 0.01% | $21 M | DBT |
| 12 | INTL BK RECON & DEVELOP | 0.01% | $20 M | DBT |
| 13 | GOLDMAN SACHS GROUP INC | 0.01% | $19 M | DBT |
| 14 | ORANGE SA | 0.01% | $16 M | DBT |
| 15 | ORACLE CORP | 0.01% | $16 M | DBT |
| 16 | META PLATFORMS INC | 0.01% | $15 M | DBT |
| 17 | EUROPEAN INVESTMENT BANK | 0.01% | $15 M | DBT |
| 18 | Capital One Multi-Asset Execution Trust | 0.01% | $15 M | ABS-O |
| 19 | WELLS FARGO & COMPANY | 0.01% | $15 M | DBT |
| 20 | ASTRAZENECA PLC | 0.01% | $15 M | DBT |
| 21 | Uruguay Government International Bonds | 0.01% | $14 M | DBT |
| 22 | AFRICAN DEVELOPMENT BANK | 0.01% | $14 M | DBT |
| 23 | GLAXOSMITHKLINE CAP INC | 0.01% | $14 M | DBT |
| 24 | MORGAN STANLEY | 0.01% | $13 M | DBT |
| 25 | MORGAN STANLEY PVT BANK | 0.01% | $13 M | DBT |
What we measure and what we leave out.
Data sources: SEC EDGAR N-PORT filings (holdings + filing-date timestamp); issuer fact sheets for expense ratio + AUM + inception; Yahoo Finance for daily NAV.
Expense ratio is the single biggest forward predictor of long-horizon performance. A 0.03% expense ratio compounds to a fundamentally different outcome than a 0.95% expense ratio over 25 years — even if the underlying index is identical.
Concentration risk lives in the top-10 weight. For broad-market trackers (VOO, VTI, SPY) the top-10 sits around 28-32%. For thematic funds — semiconductors, AI, cannabis — top-10 often crosses 60%. A "sector tilt" with 60% in 10 names is closer to active stock-picking than passive index exposure.
LRS + tax for Indian investors: US-listed ETFs are securities for Indian-tax purposes — held > 24 months = LTCG @ 12.5%, ≤ 24 months = slab-rate STCG. Distributions are dividends taxed at slab rates (US withholds 25%, creditable via DTAA). LRS USD 250,000 / FY cap applies to each remittance.
India-listed alternative: for S&P 500 / NASDAQ-100 exposure without LRS friction, see India-listed ETFs at /etfs/ (Motilal Oswal, Mirae, Nippon, etc. variants). Higher TER but no LRS hassle and INR-settled.
What this page does not model: tracking error vs underlying index, premium/discount to NAV, bid-ask spread on-exchange, currency-hedged variants (e.g. JPST-hedged), securities lending revenue (which subsidises some expense ratios).
ETF NAVs, tracking error and AUM are computed from AMFI disclosures. ETFs are subject to market risk and tracking-error risk. MintByte is an AMFI-registered mutual fund distributor (ARN-314872). MintByte does not issue buy/sell recommendations on specific securities — the site is an educational data and analytics platform. Not investment advice. Methodology · How we earn.