# ISHARES TR OPTION

ISHARES TR OPTION is a security (CUSIP 464288953) tracked across SEC portfolio filings. 15 institutional managers reported $2.6B on Form 13F as of 2026-06-30.

## Summary

- Issuer: ISHARES TR
- Class: OPTION
- CUSIP: 464288953
- 13F holders: 15
- 13F value: $2.6B
- 13F period: 2026-06-30
- N-PORT fund positions: 0

## Top institutional holders (Form 13F)

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| JPMORGAN CHASE & CO | NEW YORK, NY | $1.1B | — |
| Optiver Holding B.V. | AMSTERDAM, P7 | $435.1M | — |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | NEW YORK, NY | $433.5M | — |
| IMC-Chicago, LLC | CHICAGO, IL | $296.9M | — |
| [Bracebridge Capital, LLC](https://search.stillhousedata.com/firm/158343) | BOSTON, MA | $214.8M | — |
| [GROUP ONE TRADING, L.P.](https://search.stillhousedata.com/firm/37484) | CHICAGO, IL | $40.4M | — |
| 1832 Asset Management L.P. | TORONTO, A6 | $40.1M | — |
| Maven Securities LTD | ST HELIER, Y9 | $8.3M | — |
| Warberg Asset Management LLC | WINNETKA, IL | $955K | — |
| [HRT FINANCIAL LP](https://search.stillhousedata.com/firm/152144) | NEW YORK, NY | $655K | 8,231,800 |
| CI INVESTMENTS INC. | TORONTO, A6 | $378K | 8,500 |
| Marathon Trading Investment Management LLC | RADNOR, PA | $56K | — |
| Boussard & Gavaudan Investment Management LLP | London, X0 | $15K | — |
| SG Americas Securities, LLC | NEW YORK, NY | $175 | — |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | — |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/464288953.md)
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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.