ARK 21Shares Bitcoin ETF
ARKB
173 hedge funds and large institutions have $1.53B invested in ARK 21Shares Bitcoin ETF in 2025 Q3 according to their latest regulatory filings, with 31 funds opening new positions, 57 increasing their positions, 37 reducing their positions, and 18 closing their positions.
72% more first-time investments, than exits
New positions opened: 31 | Existing positions closed: 18
54% more repeat investments, than reductions
Existing positions increased: 57 | Existing positions reduced: 37
46% more call options, than puts
Call options by funds: $22.6M | Put options by funds: $15.4M
7% more funds holding
Funds holding: 161 → 173 (+12)
4% less capital invested
Capital invested by funds: $1.59B → $1.53B (-$59.9M)
11% less funds holding in top 10
Funds holding in top 10: 9 → 8 (-1)
92.47% less ownership
Funds ownership: 92.47% → 0% (-92%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
SSA
Schonfeld Strategic Advisors
New York
|
+$25.1M |
| 2 |
KC
Kaleidoscope Capital
Boston,
Massachusetts
|
+$8.2M |
| 3 |
DS
DRW Securities
Chicago,
Illinois
|
+$5.5M |
| 4 |
OMC
Old Mission Capital
Chicago,
Illinois
|
+$4.72M |
| 5 |
SP
SIH Partners
Wilmington,
Delaware
|
+$3.23M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
-$121M |
| 2 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$36.4M |
| 3 |
VC
Vestor Capital
Chicago,
Illinois
|
-$17.9M |
| 4 |
AIM
ARK Investment Management
St. Petersburg,
Florida
|
-$11.4M |
| 5 |
Millennium Management
New York
|
-$10.2M |
ARKB Hedge Fund Activity: Q3 2025 in Review
173 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in ARK 21Shares Bitcoin ETF (ARKB) for Q3 2025, worth a combined $1.53B — down 3.8% from $1.59B a quarter earlier.
Buyers outnumbered sellers: 31 funds opened new ARKB positions and 18 closed out — a net gain of 13 holders — while 57 added to existing stakes and 37 trimmed.
The largest buyer was Schonfeld Strategic Advisors, adding an estimated $25.1M. The largest seller was Jane Street, cutting an estimated $121M.
- 173 institutional investors held ARK 21Shares Bitcoin ETF (ARKB) as of Q3 2025, up from 161 in Q2 2025.
- Funds reported $1.53B of ARK 21Shares Bitcoin ETF stock for Q3 2025, down 3.8% quarter-over-quarter.
- 31 funds opened new ARK 21Shares Bitcoin ETF positions in Q3 2025 and 18 closed out, a net change of +13 holders.
- The largest ARK 21Shares Bitcoin ETF buyer in Q3 2025 was Schonfeld Strategic Advisors, an estimated $25.1M added.
- The largest ARK 21Shares Bitcoin ETF seller in Q3 2025 was Jane Street, an estimated $121M sold.
Based on aggregated 13F filings for Q3 2025.