ARK 21Shares Bitcoin ETF
ARKB
162 hedge funds and large institutions have $1.59B invested in ARK 21Shares Bitcoin ETF in 2025 Q2 according to their latest regulatory filings, with 29 funds opening new positions, 48 increasing their positions, 52 reducing their positions, and 16 closing their positions.
81% more first-time investments, than exits
New positions opened: 29 | Existing positions closed: 16
79% more call options, than puts
Call options by funds: $39.1M | Put options by funds: $21.8M
60% more funds holding in top 10
Funds holding in top 10: 5 → 8 (+3)
9% more funds holding
Funds holding: 149 → 162 (+13)
0.04% more ownership
Funds ownership: 32.38% → 32.42% (+0.04%)
8% less repeat investments, than reductions
Existing positions increased: 48 | Existing positions reduced: 52
24% less capital inflows, than outflows
Capital inflows: $215M | Capital outflows: $284M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Schonfeld Strategic Advisors
New York
|
+$84.4M |
| 2 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$30.6M |
| 3 |
HBK Investments
Dallas,
Texas
|
+$26.7M |
| 4 |
Vestor Capital
Chicago,
Illinois
|
+$20.3M |
| 5 |
Kaleidoscope Capital
Boston,
Massachusetts
|
+$9.9M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
-$118M |
| 2 |
Apollo Management Holdings
New York
|
-$68.3M |
| 3 |
ARK Investment Management
St. Petersburg,
Florida
|
-$65.1M |
| 4 |
Galaxy Group Investments
New York
|
-$13.8M |
| 5 |
Bank of Montreal
Toronto,
Ontario, Canada
|
-$4.62M |
ARKB Hedge Fund Activity: Q2 2025 in Review
162 of the 7,630 institutional investors tracked by Wall St. Rank reported a position in ARK 21Shares Bitcoin ETF (ARKB) for Q2 2025, worth a combined $1.59B — up 24% from $1.28B a quarter earlier.
Buyers outnumbered sellers: 29 funds opened new ARKB positions and 16 closed out — a net gain of 13 holders — while 48 added to existing stakes and 52 trimmed.
The largest buyer was Schonfeld Strategic Advisors, adding an estimated $84.4M. The largest seller was Jane Street, cutting an estimated $118M.
- 162 institutional investors held ARK 21Shares Bitcoin ETF (ARKB) as of Q2 2025, up from 149 in Q1 2025.
- Funds reported $1.59B of ARK 21Shares Bitcoin ETF stock for Q2 2025, up 24% quarter-over-quarter.
- 29 funds opened new ARK 21Shares Bitcoin ETF positions in Q2 2025 and 16 closed out, a net change of +13 holders.
- The largest ARK 21Shares Bitcoin ETF buyer in Q2 2025 was Schonfeld Strategic Advisors, an estimated $84.4M added.
- The largest ARK 21Shares Bitcoin ETF seller in Q2 2025 was Jane Street, an estimated $118M sold.
Based on aggregated 13F filings for Q2 2025.