7 institutions reported holding $1.1M of DIREXION SHARES ETF TRUST (MEXX) in SEC 13F filings for 2026-03-31. Largest institutional holders: CITADEL ADVISORS LLC ($432,249), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($405,038), JANE STREET GROUP, LLC ($217,575), UBS Group AG ($5,279), Hamrick Investment Counsel, llc ($4,352). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | CITADEL ADVISORS LLC | $432,249 | 14,900 | Trimmed |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $405,038 | 13,962 | Trimmed |
| 3 | JANE STREET GROUP, LLC | $217,575 | 7,500 | Trimmed |
| 4 | UBS Group AG | $5,279 | 182 | Trimmed |
| 5 | Hamrick Investment Counsel, llc | $4,352 | 150 | New |
| 6 | IFP Advisors, Inc | $1,160 | 40 | New |
| 7 | MORGAN STANLEY | $74 | 2 | Hold |
Source: SEC Form 13F filings · as of 2026-03-31