Calamos Bitcoin Structured Alt Protection ETF - October
CBOO
7 hedge funds and large institutions have $1.85M invested in Calamos Bitcoin Structured Alt Protection ETF - October in 2026 Q1 according to their latest regulatory filings, with 1 funds opening new positions, 3 increasing their positions, 2 reducing their positions, and 3 closing their positions.
50% more repeat investments, than reductions
Existing positions increased: 3 | Existing positions reduced: 2
22% less funds holding
Funds holding: 9 → 7 (-2)
28.92% less ownership
Funds ownership: 54.25% → 25.33% (-29%)
53% less capital invested
Capital invested by funds: $3.98M → $1.85M (-$2.13M)
67% less first-time investments, than exits
New positions opened: 1 | Existing positions closed: 3
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Calamos Advisors
Naperville,
Illinois
|
+$153K |
| 2 |
UBS Group
Zurich,
Switzerland
|
+$62.1K |
| 3 |
AW
Ankerstar Wealth
Leander,
Texas
|
+$13.7K |
| 4 |
BFS
Burkett Financial Services
Rock Hill,
South Carolina
|
+$12.2K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$1.16M |
| 2 |
OMC
Old Mission Capital
Chicago,
Illinois
|
-$726K |
| 3 |
Jane Street
New York
|
-$246K |
| 4 |
AFP
ATX Financial Planning
Austin,
Texas
|
-$214K |
| 5 |
HI
Harbour Investments
Madison,
Wisconsin
|
-$15.3K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
1
Calamos Advisors
Naperville,
Illinois
| $609K | +$153K | +6,249 | +33% |
|
|
2
Jane Street
New York
| $507K | -$246K | -10,072 | -33% |
|
|
RWA
3
Rooted Wealth Advisors
Bourbonnais,
Illinois
| $327K | – | – | – |
|
|
AW
4
Ankerstar Wealth
Leander,
Texas
| $162K | +$13.7K | +560 | +9% |
|
|
HI
5
Harbour Investments
Madison,
Wisconsin
| $162K | -$15.3K | -624 | -9% |
|
|
6
UBS Group
Zurich,
Switzerland
| $61.9K | +$62.1K | +2,539 | New |
|
|
BFS
7
Burkett Financial Services
Rock Hill,
South Carolina
| $23K | +$12.2K | +500 | +113% |
|
|
8
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
| – | -$1.16M | -47,472 | Closed |
|
|
OMC
9
Old Mission Capital
Chicago,
Illinois
| – | -$726K | -29,684 | Closed |
|
|
AFP
10
ATX Financial Planning
Austin,
Texas
| – | -$214K | -8,766 | Closed |
|
CBOO Hedge Fund Activity: Q1 2026 in Review
7 of the 8,162 institutional investors tracked by Wall St. Rank reported a position in Calamos Bitcoin Structured Alt Protection ETF - October (CBOO) for Q1 2026, worth a combined $1.85M — down 53% from $3.98M a quarter earlier.
Sellers outnumbered buyers: 3 funds closed out of CBOO and 1 opened new positions — a net loss of 2 holders — while 2 trimmed existing stakes and 3 added.
The largest buyer was Calamos Advisors, adding an estimated $153K. The largest seller was Susquehanna International Group, exiting entirely with an estimated $1.16M sold.
- 7 institutional investors held Calamos Bitcoin Structured Alt Protection ETF - October (CBOO) as of Q1 2026, down from 9 in Q4 2025.
- Funds reported $1.85M of Calamos Bitcoin Structured Alt Protection ETF - October stock for Q1 2026, down 53% quarter-over-quarter.
- 1 fund opened new Calamos Bitcoin Structured Alt Protection ETF - October positions in Q1 2026 and 3 closed out, a net change of -2 holders.
- The largest Calamos Bitcoin Structured Alt Protection ETF - October buyer in Q1 2026 was Calamos Advisors, an estimated $153K added.
- The largest Calamos Bitcoin Structured Alt Protection ETF - October seller in Q1 2026 was Susquehanna International Group, an estimated $1.16M sold.
Based on aggregated 13F filings for Q1 2026.