GRANITESHARES ETF TR 2X LONG MSTR is a security (CUSIP 38747R397) tracked across SEC portfolio filings. 7 institutional managers reported $1.1M on Form 13F as of 2026-03-31.
| Manager | Location | Value | Shares |
|---|---|---|---|
| Optiver Holding B.V. | AMSTERDAM, P7 | $756K | 523,444 |
| CITADEL ADVISORS LLC | MIAMI, FL | $200K | 138,303 |
| StoneX Group Inc. | New York, NY | $72K | 50,000 |
| TWO SIGMA SECURITIES, LLC | New York, NY | $16K | 10,772 |
| Ausdal Financial Partners, Inc. | Davenport, IA | $14K | 10,000 |
| Covestor Ltd | BOSTON, MA | $3 | 2,014 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | 0 |