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iShares Russell 1000 Large-Cap Index Fund

Index fundEquityTracks the Russell 1000 IndexOpen-end fund
BlackRock Funds IIIHoldings as of Jun 30, 2026Filed Aug 25, 2026

U.S. stock index fund · tracks Russell 1000 Index

As of its 2026 Q2 report, iShares Russell 1000 Large-Cap Index Fund held 1 positions with $2.03B in net assets. Its ten largest holdings made up 100.6% of the fund. Its share classes cost 0.06%–0.36% a year. Over the 12 months to May 2026, it returned 28.4%, with dividends reinvested.

2026 Q2 holdings and allocationChanges are against the previous quarter, 2026 Q1
Expense ratio
0.36%
$36 a year for every $10,000 invested
0.06% – 0.36% across the 3 classes
$2.03B
The whole fund, all share classes
1 holdings
100.6%in the top 10
Weight held in the ten largest holdings
Top 25 hold 100.6%
Return, 1 year
+28.4%
With dividends, to May 2026
3 yr total +85.7% · 5 yr total +83.8%
What this fund is
Objective, as filed

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.

Strategy, summarised

The fund employs a passive strategy to track the Russell 1000 Index, investing in a portfolio of large-cap U.S. equities in weightings that approximate the index. The fund may not hold all index constituents or match their exact weightings at all times, instead selecting securities with similar market capitalizations, industry weightings, and fundamental characteristics to minimize tracking error. The fund invests through a master/feeder structure, with all assets held in an underlying Master Portfolio.

What you own

per cent of the fund
CompanyWeightValue
MASTER INVESTMENT PORTFOLIO
100.58%
$2.04B
Showing 1–1 of 1 · the top 10 are 100.58% of the fund, the top 25 are 100.58%

Reported price is the fund's own reported value divided by its own reported shares at 2026-06-30 — not a live quote, and not what the fund paid.

All 1 holdings, with the share counts as filed, open with a free account.

What the fund is made of

Percentages are of fund net assets. Rounding, liabilities and short positions can make totals differ from 100%.

100.58%
of net assets
Stocks100.58%

How it has done

Total return, dividends reinvested · to May 2026

C000098723 share class · total returns with dividends reinvested

1 year
+28.38%
3 years
+85.66%
Cumulative, not per year
5 years
+83.78%
Cumulative, not per year
Largest decline in 3 years
-8.69%
From a previous high to a later low
Cumulative return, last three years· Jul 2023 – May 2026

Volatility over the last 12 months: 12.73%. Past returns are a record, not a forecast.

Jun 2026 has been filed since the trailing figures were struck, so it is not in the table above or the curve — every figure here shares one cut-off, which is what makes them comparable with other funds.

This fund changed legal form during the period shown. The history above is continuous — it spans both eras, and the change is not a gap in reporting.

Fees & fund details

iShares Russell 1000 Large-Cap Index Fund is a U.S. equity index fund that tracks the Russell 1000 Index.

Asset class
Equity
Region
United States
Management
Index (passive)
Fund type
Open-end fund
Features
Master-feeder
Expense ratio, by class
0.06% – 0.36%
Portfolio turnover
12.00% a year · as of 2026 Q2

Turnover is how much of the portfolio was replaced in a year.

Classified from what the fund holds, not from its name · 2026 Q2. The summary is a paraphrase of the prospectus; the objective is verbatim.

What changed this quarter

2026 Q2 vs 2026 Q1

Positions that entered or left the fund since its previous filing. Positions that were only resized are not listed.

New and exited totals aren’t verifiable for this fund.

Connected research

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