Who owns Defiance Daily Target 2X Short RKLB ETF?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of RKLZ from SEC Form 13F filings across 13 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 13 institutions disclosed 1.7M shares of Defiance Daily Target 2X Short RKLB ETF worth $4.4M — about 8436.7% of shares outstanding; the largest disclosed holder is JANE STREET GROUP, LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
13
13F holders
$4.4M
value, 2026 filers
8436.7%
of shares outstanding (1.7M sh)
10
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of RKLZ's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | JANE STREET GROUP, LLCNEW | 306,994 | $773,625 | 0.0% | 1508.1% | new |
| 2 | Jump Financial, LLC | 294,143 | $741,240 | 0.0% | 1445% | +114.6% |
| 3 | Optiver Holding B.V.NEW | 236,261 | $595,378 | 0.0% | 1160.6% | new |
| 4 | HRT FINANCIAL LPNEW | 225,251 | $567,000 | 0.0% | 1106.6% | new |
| 5 | SUSQUEHANNA INTERNATIONAL GROUP, LLPNEW | 220,113 | $554,685 | 0.0% | 1081.3% | new |
| 6 | StoneX Group Inc. | 129,925 | $398,829 | 0.0% | 638.3% | +1472.9% |
| 7 | TWO SIGMA SECURITIES, LLCNEW | 106,506 | $268,395 | 0.0% | 523.2% | new |
| 8 | CITADEL ADVISORS LLC | 49,679 | $125,191 | 0.0% | 244.1% | +189.7% |
| 9 | FLOW TRADERS U.S. LLCNEW | 45,959 | $116,000 | 0.0% | 225.8% | new |
| 10 | IMC-Chicago, LLCNEW | 37,379 | $94,195 | 0.0% | 183.6% | new |
| 11 | XTX Topco LtdNEW | 33,897 | $85,420 | 0.0% | 166.5% | new |
| 12 | Ground Swell Capital, LLCNEW | 20,362 | $51,312 | 0.1% | 100% | new |
| 13 | RENAISSANCE TECHNOLOGIES LLCNEW | 10,900 | $27,468 | 0.0% | 53.5% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.