MSTZ · T-Rex 2X Inverse MSTR Daily Target ETF ETF
$3.73
+0.10 (+2.62%)
At close · Sep 4
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 1
Total Value: $3,359,139
Total Shares: 216,300
Institutional Ownership Trend
8 quarters
Holder Concentration
Across 1 13F filers · Δ vs Mar 31, 2026Top Holder
100.0%
+47.5 pts
Top 5
100.0%
+12.3 pts
Top 10
100.0%
+3.3 pts
HHI
10,000
Highly concentrated+6,789
Quarterly Activity
vs Mar 31, 2026
New
0
Increased
1
Decreased
0
Sold Out
16
Unchanged
0
Holder count:
-16
Institutional value:
-87.2%
Shares held:
-89.7%
Top Buyers
vs Mar 31, 2026| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mega CITADEL ADVISORS LLC | +27,100 | 216,300 |
Top Sellers
vs Mar 31, 2026No qualifying movers this quarter.
Top New Positions
vs Mar 31, 2026No new positions this quarter.
Top Sold-Out Positions
vs Mar 31, 2026| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1,100,786 | $13,737,809 | |
| Mega JANE STREET GROUP, LLC | 373,633 | $4,662,939 | |
| Mid XTX Topco Ltd | 117,319 | $1,464,141 | |
| Small StoneX Group Inc. | 58,191 | $726,223 | |
| Small FLOW TRADERS U.S. LLC | 46,921 | $585,574 |
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega CITADEL ADVISORS LLC MSTZ | $2,554,685 | 76.05% | 164,500 | Call | 2026-09-02 | |
| Mega CITADEL ADVISORS LLC MSTZ | $804,454 | 23.95% | 51,800 | Put | 2026-09-02 |