GRANITESHARES ETF TR 2X LONG MARA is a security (CUSIP 38747T583) tracked across SEC portfolio filings. 2 institutional managers reported $815K on Form 13F as of 2026-06-30.
| Manager | Location | Value | Shares |
|---|---|---|---|
| HighTower Advisors, LLC | CHICAGO, IL | $731K | 10,273 |
| SBI Securities Co., Ltd. | TOKYO, M0 | $84K | 1,185 |