Calamos Bitcoin Structured Alt Protection ETF - October
CBOO
9 hedge funds and large institutions have $3.3M invested in Calamos Bitcoin Structured Alt Protection ETF - October in 2026 Q2 according to their latest regulatory filings, with 1 funds opening new positions, 3 increasing their positions, 3 reducing their positions, and 0 closing their positions.
429% more capital inflows, than outflows
Capital inflows: $985K | Capital outflows: $186K
13% more funds holding
Funds holding: 8 → 9 (+1)
10.87% more ownership
Funds ownership: 34.06% → 44.93% (+11%)
0% more repeat investments, than reductions
Existing positions increased: 3 | Existing positions reduced: 3
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$803K |
| 2 |
Jane Street
New York
|
+$149K |
| 3 |
UBS Group
Zurich,
Switzerland
|
+$32.7K |
| 4 |
Burkett Financial Services
Rock Hill,
South Carolina
|
+$588 |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BSC
BOLTON SECURITIES CORPORATION
Bolton,
Massachusetts
|
-$147K |
| 2 |
Calamos Advisors
Naperville,
Illinois
|
-$27.5K |
| 3 |
Ankerstar Wealth
Leander,
Texas
|
-$11.6K |
CBOO Hedge Fund Activity: Q2 2026 in Review
9 of the 8,381 institutional investors tracked by Wall St. Rank reported a position in Calamos Bitcoin Structured Alt Protection ETF - October (CBOO) for Q2 2026, worth a combined $3.3M — up 33% from $2.49M a quarter earlier.
Buyers outnumbered sellers: 1 fund opened new CBOO positions and 0 closed out — a net gain of 1 holder — while 3 added to existing stakes and 3 trimmed.
The largest buyer was Susquehanna International Group, opening a new position worth an estimated $803K. The largest seller was BOLTON SECURITIES CORPORATION, cutting an estimated $147K.
- 9 institutional investors held Calamos Bitcoin Structured Alt Protection ETF - October (CBOO) as of Q2 2026, up from 8 in Q1 2026.
- Funds reported $3.3M of Calamos Bitcoin Structured Alt Protection ETF - October stock for Q2 2026, up 33% quarter-over-quarter.
- 1 fund opened new Calamos Bitcoin Structured Alt Protection ETF - October positions in Q2 2026 and 0 closed out, a net change of +1 holder.
- The largest Calamos Bitcoin Structured Alt Protection ETF - October buyer in Q2 2026 was Susquehanna International Group, an estimated $803K added.
- The largest Calamos Bitcoin Structured Alt Protection ETF - October seller in Q2 2026 was BOLTON SECURITIES CORPORATION, an estimated $147K sold.
Based on aggregated 13F filings for Q2 2026.