IWC — iShares Micro-Cap ETF
Data updated: 2026-08-25
IWC — iShares Micro-Cap ETF. United States Small Cap Blend / Core Equity · $1.52B AUM · 0.60% expense ratio. Holdings, fees, performance and SEC filings.
IWC Fund Overview
IWC — iShares Micro-Cap ETF is a US ETF managed by iSHARES TRUST, categorised as United States Small 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 Small Cap Blend / Core Equity
- Assets under management: $1.52B
- 1-year return: 58.3%
- Ticker: IWC
- SEC CIK: 0001100663
- SEC series ID: S000004439
- Share class ID: C000012202
IWC Holdings
Top 10 holdings of iShares Micro-Cap ETF by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| BlackRock Funds III | 18.69% |
| Ouster, Inc. | 0.86% |
| Penguin Solutions, Inc. | 0.84% |
| SELLAS Life Sciences Group, Inc. | 0.61% |
| Innodata, Inc. | 0.53% |
| Nurix Therapeutics, Inc. | 0.51% |
| Interface, Inc. | 0.46% |
| FuelCell Energy, Inc. | 0.43% |
| Bandwidth, Inc. | 0.41% |
| Vishay Precision Group, Inc. | 0.40% |
IWC Portfolio Allocation
Asset-class allocation of iShares Micro-Cap ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.8% |
| Cash & Equivalents | 18.9% |
IWC Performance
Total returns for IWC (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 27.3% |
| 1 year | 58.3% |
| 3 years (annualised) | 23.7% |
| 5 years (annualised) | 6.8% |
IWC Risk Information
Risk metrics for IWC, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 15.6%
IWC Costs and Fees
IWC costs about $60 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.60%
- Gross expense ratio: 0.60%
- Portfolio turnover: 28%
- Brokerage commissions: 5.24 bps of average net assets (SEC N-CEN)
IWC Cashflows
Over the 12 months to 2026-06, iShares Micro-Cap ETF had net inflows of $191.45M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | $6.02M |
| 2026-05 | −$18.46M |
| 2026-04 | $9.78M |
| 2026-03 | −$7.97M |
| 2026-02 | −$8.41M |
| 2026-01 | $133.40M |
IWC Debt Constituents
No individual debt constituents are reported in iShares Micro-Cap ETF's latest SEC N-PORT filing.
IWC Prospectus and SEC Filings
Official iShares Micro-Cap 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 2026-08-25
- Portfolio holdings (N-PORT) — filed 2026-05-28
- Portfolio holdings (N-PORT) — filed 2026-02-25
- Annual census (N-CEN) — filed 2026-06-15
- Annual census (N-CEN) — filed 2025-06-13
Related Funds
Other United States Small 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.