ARK Innovation ETF
ARKK
622 hedge funds and large institutions have $4.66B invested in ARK Innovation ETF in 2025 Q3 according to their latest regulatory filings, with 115 funds opening new positions, 163 increasing their positions, 200 reducing their positions, and 49 closing their positions.
135% more first-time investments, than exits
New positions opened: 115 | Existing positions closed: 49
56% more funds holding in top 10
Funds holding in top 10: 9 → 14 (+5)
29% more capital invested
Capital invested by funds: $3.62B → $4.66B (+$1.04B)
8% more funds holding
Funds holding: 574 → 622 (+48)
1.3% less ownership
Funds ownership: 53.05% → 51.74% (-1.3%)
19% less repeat investments, than reductions
Existing positions increased: 163 | Existing positions reduced: 200
51% less call options, than puts
Call options by funds: $2.4B | Put options by funds: $4.88B
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
UBS Group
Zurich,
Switzerland
|
+$250M |
| 2 |
JP Morgan Chase
New York
|
+$101M |
| 3 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
+$58.5M |
| 4 |
D.E. Shaw & Co
New York
|
+$38.1M |
| 5 |
QC
Quadrature Capital
London,
United Kingdom
|
+$34.7M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Bank of America
Charlotte,
North Carolina
|
-$136M |
| 2 |
Wells Fargo
San Francisco,
California
|
-$57.2M |
| 3 |
Parallax Volatility Advisers
San Francisco,
California
|
-$40.1M |
| 4 |
Walleye Capital
New York
|
-$28.1M |
| 5 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$25.5M |
ARKK Hedge Fund Activity: Q3 2025 in Review
622 of the 7,638 institutional investors tracked by Wall St. Rank reported a position in ARK Innovation ETF (ARKK) for Q3 2025, worth a combined $4.66B — up 29% from $3.62B a quarter earlier.
Buyers outnumbered sellers: 115 funds opened new ARKK positions and 49 closed out — a net gain of 66 holders — while 163 added to existing stakes and 200 trimmed.
The largest buyer was UBS Group, adding an estimated $250M. The largest seller was Bank of America, cutting an estimated $136M.
- 622 institutional investors held ARK Innovation ETF (ARKK) as of Q3 2025, up from 574 in Q2 2025.
- Funds reported $4.66B of ARK Innovation ETF stock for Q3 2025, up 29% quarter-over-quarter.
- 115 funds opened new ARK Innovation ETF positions in Q3 2025 and 49 closed out, a net change of +66 holders.
- The largest ARK Innovation ETF buyer in Q3 2025 was UBS Group, an estimated $250M added.
- The largest ARK Innovation ETF seller in Q3 2025 was Bank of America, an estimated $136M sold.
Based on aggregated 13F filings for Q3 2025.