ARK 21Shares Bitcoin ETF
ARKB
125 hedge funds and large institutions have $608M invested in ARK 21Shares Bitcoin ETF in 2026 Q2 according to their latest regulatory filings, with 13 funds opening new positions, 30 increasing their positions, 45 reducing their positions, and 30 closing their positions.
166% more call options, than puts
Call options by funds: $7.5M | Put options by funds: $2.82M
27.16% more ownership
Funds ownership: 0% → 27.16% (+27%)
14% less funds holding
Funds holding: 146 → 125 (-21)
17% less funds holding in top 10
Funds holding in top 10: 6 → 5 (-1)
24% less capital invested
Capital invested by funds: $798M → $608M (-$190M)
33% less repeat investments, than reductions
Existing positions increased: 30 | Existing positions reduced: 45
57% less first-time investments, than exits
New positions opened: 13 | Existing positions closed: 30
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
+$22.8M |
| 2 |
QC
Quadrature Capital
London,
United Kingdom
|
+$5.68M |
| 3 |
Citadel Advisors
Miami,
Florida
|
+$2.52M |
| 4 |
Renaissance Technologies
New York
|
+$1.14M |
| 5 |
MIH
Meitav Investment House
Bene-Beraq,
Israel
|
+$1.09M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
SSA
Schonfeld Strategic Advisors
New York
|
-$39.5M |
| 2 |
GD
Galaxy Digital
New York
|
-$30.2M |
| 3 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$18.7M |
| 4 |
Millennium Management
New York
|
-$15.1M |
| 5 |
AIM
ARK Investment Management
St. Petersburg,
Florida
|
-$5.8M |
ARKB Hedge Fund Activity: Q2 2026 in Review
125 of the 8,317 institutional investors tracked by Wall St. Rank reported a position in ARK 21Shares Bitcoin ETF (ARKB) for Q2 2026, worth a combined $608M — down 24% from $798M a quarter earlier.
Sellers outnumbered buyers: 30 funds closed out of ARKB and 13 opened new positions — a net loss of 17 holders — while 45 trimmed existing stakes and 30 added.
The largest buyer was Jane Street, adding an estimated $22.8M. The largest seller was Schonfeld Strategic Advisors, cutting an estimated $39.5M.
- 125 institutional investors held ARK 21Shares Bitcoin ETF (ARKB) as of Q2 2026, down from 146 in Q1 2026.
- Funds reported $608M of ARK 21Shares Bitcoin ETF stock for Q2 2026, down 24% quarter-over-quarter.
- 13 funds opened new ARK 21Shares Bitcoin ETF positions in Q2 2026 and 30 closed out, a net change of -17 holders.
- The largest ARK 21Shares Bitcoin ETF buyer in Q2 2026 was Jane Street, an estimated $22.8M added.
- The largest ARK 21Shares Bitcoin ETF seller in Q2 2026 was Schonfeld Strategic Advisors, an estimated $39.5M sold.
Based on aggregated 13F filings for Q2 2026.