IWB — iShares Russell 1000 ETF
Data updated: 2026-08-24
IWB — iShares Russell 1000 ETF. United States Large Cap Blend / Core Equity · $48.33B AUM · 0.15% expense ratio. Holdings, fees, performance and SEC filings.
IWB Fund Overview
IWB — iShares Russell 1000 ETF is a US ETF managed by iSHARES TRUST, categorised as United States Large Cap Blend / Core Equity. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US ETF
- Manager: iSHARES TRUST
- Category: United States Large Cap Blend / Core Equity
- Assets under management: $48.33B
- 1-year return: 21.9%
- Ticker: IWB
- SEC CIK: 0001100663
- SEC series ID: S000004347
- Share class ID: C000012077
IWB Holdings
Top 10 holdings of iShares Russell 1000 ETF by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| NVIDIA Corporation | 6.72% |
| Apple Inc. | 6.03% |
| Microsoft Corporation | 3.99% |
| Amazon.com, Inc. | 3.33% |
| Alphabet Inc. | 3.00% |
| Broadcom Inc. | 2.53% |
| Alphabet Inc. | 2.42% |
| Micron Technology, Inc. | 1.87% |
| Meta Platforms, Inc. | 1.78% |
| Tesla, Inc. | 1.77% |
IWB Portfolio Allocation
Asset-class allocation of iShares Russell 1000 ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.9% |
| Cash & Equivalents | 0.8% |
IWB Performance
Total returns for IWB (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 10.3% |
| 1 year | 21.9% |
| 3 years (annualised) | 20.3% |
| 5 years (annualised) | 12.5% |
IWB Risk Information
Risk metrics for IWB, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 12.6%
IWB Costs and Fees
IWB costs about $15 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.15%
- Gross expense ratio: 0.15%
- Portfolio turnover: 3%
- Brokerage commissions: 0.03 bps of average net assets (SEC N-CEN)
IWB Cashflows
Over the 12 months to 2026-06, iShares Russell 1000 ETF had net outflows of $1.41B, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$176.11M |
| 2026-05 | $304.06M |
| 2026-04 | −$849.71M |
| 2026-03 | −$1.11B |
| 2026-02 | −$151.85M |
| 2026-01 | −$188.71M |
IWB Debt Constituents
No individual debt constituents are reported in iShares Russell 1000 ETF's latest SEC N-PORT filing.
IWB Prospectus and SEC Filings
Official iShares Russell 1000 ETF filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2025-07-22
- Prospectus (485BPOS) — filed 2024-07-19
- Prospectus (485BPOS) — filed 2023-07-20
- Portfolio holdings (N-PORT) — filed 2026-08-24
- Portfolio holdings (N-PORT) — filed 2026-05-22
- Portfolio holdings (N-PORT) — filed 2026-02-23
- Annual census (N-CEN) — filed 2026-06-15
- Annual census (N-CEN) — filed 2025-06-13
Related Funds
Other United States Large Cap Blend / Core Equity funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.