iShares Russell 1000 Large-Cap Index Fund
Data updated: 2026-08-25
C000098724 — iShares Russell 1000 Large-Cap Index Fund. United States Large Cap Blend / Core Equity · $2.03B AUM. Holdings, fees, performance and SEC filings.
C000098724 Fund Overview
iShares Russell 1000 Large-Cap Index Fund is a US mutual fund managed by BlackRock Funds III, 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 mutual fund
- Manager: BlackRock Funds III
- Category: United States Large Cap Blend / Core Equity
- Assets under management: $2.03B
- 1-year return: 21.9%
- SEC CIK: 0000893818
- SEC series ID: S000031723
- Share class ID: C000098724
C000098724 Investment Objective and Strategy
iShares Russell 1000 Large-Cap Index Fund describes its objective and strategy as follows, from its latest prospectus filed with the SEC by BlackRock Funds III.
Investment objective
The investment objective of iShares Russell 1000 Large-Cap Index Fund (Large-Cap Index Fund or the Fund), a series of BlackRock Funds III (the Trust), is to match the performance of the Russell 1000 Index (the Russell 1000 or the Underlying Index ) as closely as possible before the deduction of Fund expenses.
Principal investment strategy
The Large-Cap Index Fund employs a passive management approach, attempting to invest in a portfolio of assets whose performance is expected to match approximately the performance of the Russell 1000. The Fund will be substantially invested in equity securities in the Russell 1000, and will invest, under normal circumstances, at least 80% of its net assets in securities or other financial instruments that are components of or have economic characteristics similar to the securities included in the Russell 1000. Equity securities in which the Fund invests include common stock, preferred stock and securities or other instruments whose price is linked to the value of common stock. The Fund will invest in the common stocks represented in the Russell 1000 in roughly the same proportions as their weightings in the Russell 1000.
As of March 31, 2026, the companies in the Russell 1000 have a market capitalization ranging from $134.5 billion to $4.32 trillion. The Fund may also engage in futures transactions. At times, the Fund may not invest in all of the common stocks in the Russell 1000, or in the same weightings as in the Russell 1000. At those times, the Fund chooses investments so that the market capitalizations, industry weightings and other fundamental characteristics of the stocks chosen are similar to the Russell 1000 as a whole. The Fund may lend securities with a value up to 33 ?1 / 3 % of its total assets to financial institutions that provide cash or securities issued or guaranteed by the U.S. Government as collateral. The Fund will concentrate its investments (i.e., hold 25% or more of its total assets) in a particular industry or group of industries to approximately the same extent that the Russell 1000 is concentrated.
The Fund is a feeder fund that invests all of its assets in the Master Portfolio, which has the same investment objective and strategies as the Fund. All investments are made at the Master Portfolio level. This structure is sometimes called a master/feeder structure. The Funds investment results will correspond directly to the investment results of the Master Portfolio. For simplicity, this prospectus uses the name of the Fund or the term Fund (as applicable) to include the Master Portfolio. The Fund intends to be diversified in approximately the same proportion as the Underlying Index is diversified. The Fund may become non-diversified, as defined in the Investment Company Act of 1940, as amended, solely as a result of a change in relative market capitalization or index weighting of one or more constituents of the Underlying Index.
Shareholder approval will not be sought if the Fund becomes non-diversified due solely to a change in the relative market capitalization or index weighting of one or more constituents of the Underlying Index.
C000098724 Holdings
Top 1 holdings of iShares Russell 1000 Large-Cap Index Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Master Investment Portfolio | 100.58% |
C000098724 Portfolio Allocation
Asset-class allocation of iShares Russell 1000 Large-Cap Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 100.6% |
C000098724 Performance
Total returns for C000098724 (as of 2026-10-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 10.3% |
| 1 year | 21.9% |
| 3 years (annualised) | 20.4% |
| 5 years (annualised) | 12.6% |
C000098724 Risk Information
Risk metrics for C000098724, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 12.6%
C000098724 Costs and Fees
C000098724 costs about $11 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.11%
- Gross expense ratio: 0.11%
- Portfolio turnover: 12%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
C000098724 Cashflows
Over the 12 months to 2026-06, iShares Russell 1000 Large-Cap Index Fund had net inflows of $24.62M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$8.50M |
| 2026-05 | −$10.21M |
| 2026-04 | $5.41M |
| 2026-03 | $5.33M |
| 2026-02 | $630.18K |
| 2026-01 | $8.22M |
C000098724 Debt Constituents
No individual debt constituents are reported in iShares Russell 1000 Large-Cap Index Fund's latest SEC N-PORT filing.
C000098724 Prospectus and SEC Filings
Official iShares Russell 1000 Large-Cap Index Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-04-24
- Prospectus (485BPOS) — filed 2025-04-25
- Prospectus (485BPOS) — filed 2024-04-23
- Portfolio holdings (N-PORT) — filed 2026-08-25
- Portfolio holdings (N-PORT) — filed 2026-05-28
- Portfolio holdings (N-PORT) — filed 2026-02-24
- Annual census (N-CEN) — filed 2026-03-16
- Annual census (N-CEN) — filed 2025-03-17
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.