OKLL Defiance Daily Target 2x Long OKLO ETF
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Institutional owners (13F) 23 filers · $9.1M total · As of June 30, 2026
Institutions that report holding this stock in their quarterly SEC Form 13F. Long positions only; a single filer may appear twice for separate option legs. Large offsetting put/call legs typically reflect market-making or hedged inventory, not directional conviction.
Institutional activity — Q2 2026 vs prior quarter
| New positions | Exited positions | Increased | Decreased | Net shares change |
|---|---|---|---|---|
| 8 (-3 vs prior Q) | 5 (+1 vs prior Q) | 9 (+4 vs prior Q) | 5 (+1 vs prior Q) | +820K |
Compared to Q1 2026. SEC Form 13F filings are due within 45 days of quarter-end plus a short buffer for late filers — quarters still inside that window are skipped in favor of the most recent fully-reported pair.
| Institution | Value | Shares | % of tracked 13F | Type |
|---|---|---|---|---|
| StoneX Group Inc. | $1,231,085 | 142,892 | 13.57% | Shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1,219,153 | 248,300 | 13.44% | Call option |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1,043,375 | 212,500 | 11.50% | Put option |
| JANE STREET GROUP, LLC | $1,036,010 | 211,000 | 11.42% | Call option |
| Optiver Holding B.V. | $873,273 | 177,856 | 9.62% | Shares |
| CITADEL ADVISORS LLC | $666,287 | 135,700 | 7.34% | Put option |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $646,726 | 131,716 | 7.13% | Shares |
| CITADEL ADVISORS LLC | $636,827 | 129,700 | 7.02% | Call option |
| CITIGROUP INC | $465,213 | 94,748 | 5.13% | Shares |
| JANE STREET GROUP, LLC | $327,006 | 66,600 | 3.60% | Put option |
| XTX Topco Ltd | $253,420 | 51,613 | 2.79% | Shares |
| Jump Financial, LLC | $205,965 | 41,948 | 2.27% | Shares |
| IMC-Chicago, LLC | $124,046 | 25,264 | 1.37% | Shares |
| GOLDMAN SACHS GROUP INC | $108,678 | 22,134 | 1.20% | Shares |
| MERCER GLOBAL ADVISORS INC /ADV | $85,434 | 17,400 | 0.94% | Shares |
| Belvedere Trading LLC | $56,956 | 11,600 | 0.63% | Call option |
| UBS Group AG | $37,031 | 7,542 | 0.41% | Shares |
| GROUP ONE TRADING LLC | $22,542 | 4,591 | 0.25% | Shares |
| Belvedere Trading LLC | $19,021 | 3,874 | 0.21% | Shares |
| SIMPLEX TRADING, LLC | $13,325 | 2,714 | 0.15% | Shares |
| Belvedere Trading LLC | $2,455 | 500 | 0.03% | Put option |
| HRT FINANCIAL LP | $436 | 88,950 | 0.00% | Shares |
| HOLLENCREST CAPITAL MANAGEMENT | $123 | 25 | 0.00% | Shares |