iShares Russell 1000 ETF (IWB), issued by BlackRock, reported 1,026 long positions and $48.3B in net assets in its Jun 2026 N-PORT filing. The ten largest positions account for 33.45% of net assets.
Reporting period: 30 Jun 2026 · 8 filings on file · N-PORT is filed monthly and published quarterly, roughly 60 days in arrears
Net assets
$48.3B
As of Jun 2026
Positions
1,026
Long positions in the filing
Top 10 weight
33.45%
Top 25: 47.25%
Effective holdings
61
Moderately concentrated
Cash
0.00%
Share of net assets
Securities on loan
0.7516%
86 positions on loan
Sector exposure
13 sectors · Jun 2026
Technology36.05%
Financials10.99%
Industrials10.71%
Consumer Discretionary10.52%
Communication Services8.58%
Health Care7.64%
Consumer Staples3.20%
Utilities2.60%
Materials2.40%
Energy2.27%
Unclassified2.17%
Real Estate2.06%
Funds0.81%
Ten largest holdings
Top 10 of 1,028 positions · Jun 2026
Ten largest holdings reported by IWB as of 30 Jun 2026
#
Security
CUSIP
Value
% of net assets
1
NVIDIA CORP
67066G104
$3.2B
6.72%
2
APPLE INC
037833100
$2.9B
6.03%
3
MICROSOFT CORP
594918104
$1.9B
3.99%
4
AMAZON.COM INC
023135106
$1.6B
3.33%
5
ALPHABET INC-CL A
02079K305
$1.4B
3.00%
6
BROADCOM INC
11135F101
$1.2B
2.53%
7
ALPHABET INC-CL C
02079K107
$1.2B
2.42%
8
MICRON TECHNOLOGY INC
595112103
$905.8M
1.87%
9
META PLATFORMS INC-CLASS A
30303M102
$862.0M
1.78%
10
TESLA INC
88160R101
$855.3M
1.77%
Full holdings, position changes between periods, fund overlap, cross-fund crowding and securities lending detail for IWB are in the ETF X-Ray dashboard.