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MSTZ ETF OPPORTUNITIES TRUST

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T REX 2X INVERSE (fund)

16 managers (16 13F filers) reported a position in MSTZ shares at 2026-03-31, 580,308 shares in all. 8 filers opened a position and 7 filers sold out during the quarter.

Managers
16
13F filers
16
New
8
Added
3
Reduced
5
Sold out
7
Shares held by filers
580,308

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…137,086$1.71M<0.01%-72,22913F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd117,319$1.46M0.03%new13F-HRTimelineGroup
Elequin Capital, LP41,107$937K0.09%+40,73913F-HRTimeline
StoneX Group Inc.in group StoneX Group Inc.58,191$726K0.04%+15,22813F-HRTimelineGroup
FLOW TRADERS U.S. LLC46,921$586K0.02%new13F-HRTimeline
TWO SIGMA SECURITIES, LLC42,519$531K0.06%new13F-HRTimeline
GTS SECURITIES LLC32,337$404K0.01%new13F-HRTimeline
IMC-Chicago, LLC25,626$320K<0.01%+2,88613F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC23,903$298K<0.01%-14,68913F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC19,533$244K<0.01%-74,09513F-HRTimelineGroup
Optiver Holding B.V.in group Optiver Holding B.V.16,756$209K0.01%-4,82613F-HR/ATimelineGroup
SBI Securities Co., Ltd.13,648$170K<0.01%-3,02013F-HRTimeline
SIMPLEX TRADING, LLC3,011$37.6K<0.01%new13F-HRTimeline
Federation des caisses Desjardins du Qu…1,700$21.2K<0.01%new13F-HRTimeline
Belvedere Trading LLC639$7.97K<0.01%new13F-HRTimeline
IFP Advisors, Inc12$150<0.01%new13F-HRTimeline