IWR — iShares Russell Mid-Cap ETF
Data updated: 2026-08-25
IWR — iShares Russell Mid-Cap ETF. United States Mid Cap Blend / Core Equity · $56.98B AUM · 0.18% expense ratio. Holdings, fees, performance and SEC filings.
IWR Fund Overview
IWR — iShares Russell Mid-Cap ETF is a US ETF managed by iSHARES TRUST, categorised as United States Mid 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 Mid Cap Blend / Core Equity
- Assets under management: $56.98B
- 1-year return: 21.5%
- Ticker: IWR
- SEC CIK: 0001100663
- SEC series ID: S000004338
- Share class ID: C000012068
IWR Holdings
Top 10 holdings of iShares Russell Mid-Cap ETF by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| BlackRock Funds III | 2.61% |
| Datadog, Inc. | 0.62% |
| Snowflake, Inc. | 0.61% |
| Royal Caribbean Cruises Ltd. | 0.58% |
| Cloudflare, Inc. | 0.56% |
| Robinhood Markets, Inc. | 0.56% |
| Teradyne, Inc. | 0.55% |
| Marathon Petroleum Corp. | 0.54% |
| Astera Labs, Inc. | 0.53% |
| Simon Property Group, Inc. | 0.52% |
IWR Portfolio Allocation
Asset-class allocation of iShares Russell Mid-Cap ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.8% |
| Cash & Equivalents | 2.6% |
IWR Performance
Total returns for IWR (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 15.2% |
| 1 year | 21.5% |
| 3 years (annualised) | 16.3% |
| 5 years (annualised) | 8.3% |
IWR Risk Information
Risk metrics for IWR, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 10.6%
IWR Costs and Fees
IWR costs about $18 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.18%
- Gross expense ratio: 0.18%
- Portfolio turnover: 11%
- Brokerage commissions: 0.23 bps of average net assets (SEC N-CEN)
IWR Cashflows
Over the 12 months to 2026-06, iShares Russell Mid-Cap ETF had net inflows of $5.85B, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | $589.09M |
| 2026-05 | $671.01M |
| 2026-04 | $839.88M |
| 2026-03 | $1.39B |
| 2026-02 | $342.61M |
| 2026-01 | −$353.62M |
IWR Debt Constituents
No individual debt constituents are reported in iShares Russell Mid-Cap ETF's latest SEC N-PORT filing.
IWR Prospectus and SEC Filings
Official iShares Russell Mid-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 Mid 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.