ISHARES TR (IOO): Institutional Ownership
Hedge funds and institutional managers reporting a position in IOO. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
6
13F filers
Aggregate Value
$11.2M
Across holders
Last Price
$133.77
2026-06-26
Sector
GICS
Holder activity1 new2 added2 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 29K | $3.5M | 31.4% | 0.0% | Reduced | $-7.3M | Q1 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 19K | $2.3M | 20.9% | 0.0% | Added | +$1.9M | Q1 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 17K | $2.1M | 18.3% | 0.0% | Added | +$7K | Q1 2026 |
| GAMCO INVESTORS, INC. ET AL CIK 0000807249 | Institutional Manager | 17K | $2.0M | 18.1% | 0.0% | Unchanged | +$0 | Q1 2026 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 6K | $714K | 6.3% | 0.0% | Reduced | $-1.2M | Q1 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 5K | $564K | 5.0% | 0.0% | New | — | Q2 2025 |
Reduced
Hedge Fund
$3.5M· 31.4% of total· 0.0% port· 29K sh· $-7.3M QoQ· Q1 2026
Added
Hedge Fund
$2.3M· 20.9% of total· 0.0% port· 19K sh· +$1.9M QoQ· Q1 2026
Added
Hedge Fund
$2.1M· 18.3% of total· 0.0% port· 17K sh· +$7K QoQ· Q1 2026
Unchanged
Institutional Manager
$2.0M· 18.1% of total· 0.0% port· 17K sh· +$0 QoQ· Q1 2026
Reduced
Hedge Fund
$714K· 6.3% of total· 0.0% port· 6K sh· $-1.2M QoQ· Q1 2026
New
Hedge Fund
$564K· 5.0% of total· 0.0% port· 5K sh· — QoQ· Q2 2025