ARK Space & Defense Innovation ETF
ARKX
96 hedge funds and large institutions have $36.1M invested in ARK Space & Defense Innovation ETF in 2025 Q3 according to their latest regulatory filings, with 24 funds opening new positions, 27 increasing their positions, 12 reducing their positions, and 10 closing their positions.
140% more first-time investments, than exits
New positions opened: 24 | Existing positions closed: 10
125% more repeat investments, than reductions
Existing positions increased: 27 | Existing positions reduced: 12
60% more capital invested
Capital invested by funds: $22.6M → $36.1M (+$13.6M)
14% more funds holding
Funds holding: 84 → 96 (+12)
1.47% more ownership
Funds ownership: 6.68% → 8.15% (+1.5%)
56% less call options, than puts
Call options by funds: $123M | Put options by funds: $278M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
LPL Financial
San Diego,
California
|
+$2.19M |
| 2 |
Citadel Advisors
Miami,
Florida
|
+$1.96M |
| 3 |
D.E. Shaw & Co
New York
|
+$1.55M |
| 4 |
Morgan Stanley
New York
|
+$1.18M |
| 5 |
MIM
Marshall Investment Management
Littleton,
Colorado
|
+$885K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
UBS Group
Zurich,
Switzerland
|
-$1.43M |
| 2 |
CIC
Canal Insurance Company
Greenville,
South Carolina
|
-$1.05M |
| 3 |
MML Investors Services
Springfield,
Massachusetts
|
-$405K |
| 4 |
PAM
PVG Asset Management
Golden,
Colorado
|
-$325K |
| 5 |
BCM
Barometer Capital Management
Toronto,
Ontario, Canada
|
-$292K |
ARKX Hedge Fund Activity: Q3 2025 in Review
96 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in ARK Space & Defense Innovation ETF (ARKX) for Q3 2025, worth a combined $36.1M — up 60% from $22.6M a quarter earlier.
Buyers outnumbered sellers: 24 funds opened new ARKX positions and 10 closed out — a net gain of 14 holders — while 27 added to existing stakes and 12 trimmed.
The largest buyer was LPL Financial, adding an estimated $2.19M. The largest seller was UBS Group, cutting an estimated $1.43M.
- 96 institutional investors held ARK Space & Defense Innovation ETF (ARKX) as of Q3 2025, up from 84 in Q2 2025.
- Funds reported $36.1M of ARK Space & Defense Innovation ETF stock for Q3 2025, up 60% quarter-over-quarter.
- 24 funds opened new ARK Space & Defense Innovation ETF positions in Q3 2025 and 10 closed out, a net change of +14 holders.
- The largest ARK Space & Defense Innovation ETF buyer in Q3 2025 was LPL Financial, an estimated $2.19M added.
- The largest ARK Space & Defense Innovation ETF seller in Q3 2025 was UBS Group, an estimated $1.43M sold.
Based on aggregated 13F filings for Q3 2025.