Tradr 2X Long MDB Daily ETF
MDBX
MDBX was delisted on the 20th of April, 2026.
4 hedge funds and large institutions have $463K invested in Tradr 2X Long MDB Daily ETF in 2026 Q1 according to their latest regulatory filings, with 1 funds opening new positions, 1 increasing their positions, reducing their positions, and 3 closing their positions.
31.12% less ownership
Funds ownership: 46.02% → 14.91% (-31%)
33% less funds holding
Funds holding: 6 → 4 (-2)
67% less first-time investments, than exits
New positions opened: 1 | Existing positions closed: 3
74% less capital invested
Capital invested by funds: $1.8M → $463K (-$1.34M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Optiver Holding
Amsterdam,
Netherlands
|
+$621K |
| 2 |
Simplex Trading
Chicago,
Illinois
|
+$17.7K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
-$672K |
| 2 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$453K |
| 3 |
HCM
Hollencrest Capital Management
Newport Beach,
California
|
-$21.3K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
1
Optiver Holding
Amsterdam,
Netherlands
| $450K | +$621K | +14,251 | +160% |
|
|
2
Simplex Trading
Chicago,
Illinois
| $7.88K | +$17.7K | +406 | New |
|
3
Group One Trading
Chicago,
Illinois
| $5.06K | – | – | – |
|
4
Citigroup
New York
| $19 | – | – | – |
|
|
5
Citadel Advisors
Miami,
Florida
| – | -$672K | -9,445 | Closed |
|
|
6
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
| – | -$453K | -6,372 | Closed |
|
|
HCM
7
Hollencrest Capital Management
Newport Beach,
California
| – | -$21.3K | -300 | Closed |
|
MDBX Hedge Fund Activity: Q1 2026 in Review
4 of the 8,131 institutional investors tracked by Wall St. Rank reported a position in Tradr 2X Long MDB Daily ETF (MDBX) for Q1 2026, worth a combined $463K — down 74% from $1.8M a quarter earlier.
Sellers outnumbered buyers: 3 funds closed out of MDBX and 1 opened new positions — a net loss of 2 holders — while 0 trimmed existing stakes and 1 added.
The largest buyer was Optiver Holding, adding an estimated $621K. The largest seller was Citadel Advisors, exiting entirely with an estimated $672K sold.
- 4 institutional investors held Tradr 2X Long MDB Daily ETF (MDBX) as of Q1 2026, down from 6 in Q4 2025.
- Funds reported $463K of Tradr 2X Long MDB Daily ETF stock for Q1 2026, down 74% quarter-over-quarter.
- 1 fund opened new Tradr 2X Long MDB Daily ETF positions in Q1 2026 and 3 closed out, a net change of -2 holders.
- The largest Tradr 2X Long MDB Daily ETF buyer in Q1 2026 was Optiver Holding, an estimated $621K added.
- The largest Tradr 2X Long MDB Daily ETF seller in Q1 2026 was Citadel Advisors, an estimated $672K sold.
Based on aggregated 13F filings for Q1 2026.