iShares Russell Mid-Cap Index Fund
Data updated: 2026-06-25
C000155940 — iShares Russell Mid-Cap Index Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. United States Mid Cap Blend / Core Equity · $2.39B AUM · 0.10% expense ratio · 25.7% 1-yr return. From SEC regulatory filings.
C000155940 Fund Overview
iShares Russell Mid-Cap Index Fund is a US mutual fund managed by Blackrock Funds, 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 mutual fund
- Manager: Blackrock Funds
- Category: United States Mid Cap Blend / Core Equity
- Assets under management: $2.39B
- 1-year return: 25.7%
- SEC CIK: 0000844779
- SEC series ID: S000049319
- Share class ID: C000155940
C000155940 Holdings
Top 10 holdings of iShares Russell Mid-Cap Index Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| BlackRock Funds III | 1.58% |
| iShares Russell Mid-Cap ETF | 1.20% |
| Sandisk Corp/DE | 1.14% |
| Western Digital Corp | 1.08% |
| Corning Inc | 0.93% |
| Vertiv Holdings Co | 0.91% |
| Quanta Services Inc | 0.78% |
| Blackrock Cash Funds Treasury Sl Agency Shares | 0.72% |
| Howmet Aerospace Inc | 0.71% |
| Bank of New York Mellon Corp/The | 0.67% |
C000155940 Portfolio Allocation
Asset-class allocation of iShares Russell Mid-Cap Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.2% |
| Cash & Equivalents | 2.3% |
| Derivatives | 0.1% |
C000155940 Performance
Total returns for C000155940 (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 8.7% |
| 1 year | 25.7% |
| 3 years (annualised) | 16.1% |
| 5 years (annualised) | 7.7% |
C000155940 Risk Information
Risk metrics for C000155940, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 11.3%
C000155940 Costs and Fees
C000155940 costs about $10 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.10%
- Gross expense ratio: 0.10%
- Portfolio turnover: 17%
- Brokerage commissions: 0.35 bps of average net assets (SEC N-CEN)
C000155940 Cashflows
Over the 12 months to 2026-04, iShares Russell Mid-Cap Index Fund had net inflows of $57.51M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-04 | $5.29M |
| 2026-03 | $9.96M |
| 2026-02 | $5.37M |
| 2026-01 | −$2.60M |
| 2025-12 | $93.48M |
| 2025-11 | $321.45K |
C000155940 Debt Constituents
No individual debt constituents are reported in iShares Russell Mid-Cap Index Fund's latest SEC N-PORT filing.
C000155940 Prospectus and SEC Filings
Official iShares Russell Mid-Cap Index Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
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.