# GRANITESHARES ETF TR 2X LONG MARA

GRANITESHARES ETF TR 2X LONG MARA is a security (CUSIP 38747R538) tracked across SEC portfolio filings. 11 institutional managers reported $4.6M on Form 13F as of 2026-06-30.

## Summary

- Issuer: GRANITESHARES ETF TR
- Class: 2X LONG MARA
- CUSIP: 38747R538
- 13F holders: 11
- 13F value: $4.6M
- 13F period: 2026-06-30
- N-PORT fund positions: 0

## Top institutional holders (Form 13F)

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| JANE STREET GROUP, LLC | NEW YORK, NY | $3.6M | 127,114 |
| [Sara-Bay Financial](https://search.stillhousedata.com/firm/133443) | SARASOTA, FL | $498K | 6,997 |
| Optiver Holding B.V. | AMSTERDAM, P7 | $202K | 70,408 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $103K | 35,765 |
| [CITADEL ADVISORS LLC](https://search.stillhousedata.com/firm/148826) | MIAMI, FL | $92K | — |
| [TWO SIGMA SECURITIES, LLC](https://search.stillhousedata.com/firm/148960) | New York, NY | $51K | 17,673 |
| XTX Topco Ltd | LONDON, X0 | $38K | 13,139 |
| [SIMPLEX TRADING, LLC](https://search.stillhousedata.com/firm/153585) | CHICAGO, IL | $7K | 2,534 |
| MORGAN STANLEY | NEW YORK, NY | $7K | 2,525 |
| Tower Research Capital LLC (TRC) | NEW YORK, NY | $1K | 451 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | 0 |

## More

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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.