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SEC Form N-PORT · Equity ETF

IWO — iShares Russell 2000 Growth ETFholdings & exposure

iShares Russell 2000 Growth ETF (IWO), issued by BlackRock, reported 1,103 long positions and $12.2B in net assets in its Mar 2026 N-PORT filing. The ten largest positions account for 22.93% of net assets.

Reporting period: 31 Mar 2026 · 8 filings on file · N-PORT is filed monthly and published quarterly, roughly 60 days in arrears

Net assets
$12.2B
As of Mar 2026
Positions
1,103
Long positions in the filing
Top 10 weight
22.93%
Top 25: 32.14%
Effective holdings
45
Moderately concentrated
Cash
0.10%
Share of net assets
Securities on loan
13.5145%
596 positions on loan

Sector exposure

13 sectors · Mar 2026
  • Technology19.19%
  • Health Care19.04%
  • Industrials16.26%
  • Funds12.08%
  • Financials7.96%
  • Consumer Discretionary7.96%
  • Materials5.12%
  • Unclassified4.53%
  • Real Estate1.88%
  • Utilities1.75%
  • Consumer Staples1.59%
  • Communication Services1.35%
  • Energy1.28%

Ten largest holdings

Top 10 of 1,105 positions · Mar 2026
Ten largest holdings reported by IWO as of 31 Mar 2026
#SecurityCUSIPValue% of net assets
1BCF INSTITUTIONAL-SL AGNCY066922519$1.7B13.68%
2BLOOM ENERGY CORP- A093712107$241.7M1.99%
3FABRINETN/A$153.7M1.26%
4CREDO TECHNOLOGY GROUP HOLDIN/A$123.6M1.02%
5NEXTPOWER INC-CL A65290E101$114.8M0.94%
6KRATOS DEFENSE & SECURITY50077B207$104.1M0.86%
7ADVANCED ENERGY INDUSTRIES007973100$99.3M0.82%
8STERLING INFRASTRUCTURE INC859241101$99.1M0.81%
9BRIDGEBIO PHARMA INC10806X102$96.1M0.79%
10GUARDANT HEALTH INC40131M109$93.6M0.77%

Full holdings, position changes between periods, fund overlap, cross-fund crowding and securities lending detail for IWO are in the ETF X-Ray dashboard.

Open ETF X-Ray

Related

Browse all ETFs on file, or read the ETF X-Ray documentation for what Form N-PORT discloses. Institutional 13F portfolios are covered separately in Fund Tracker.

Source. Derived from SEC Form N-PORT filings retrieved from EDGAR. Rock Group is not affiliated with, endorsed by, or acting on behalf of any institution or fund named on this page.

Timing. N-PORT is filed monthly and published quarterly on roughly a 60-day delay, so the period shown here is not the fund's current portfolio. Filers may also amend earlier filings, which restates history — a figure that changes between visits is an amendment, not an error.

Not advice. This page is published for research and informational purposes only. It is not investment advice, not an offer or solicitation to buy or sell any security, and not a recommendation of any institution, fund or strategy. Figures are provided without warranty of accuracy or completeness — verify against the original filing before relying on any of them.