Amplify Cybersecurity ETF
HACK
370 hedge funds and large institutions have $567M invested in Amplify Cybersecurity ETF in 2025 Q4 according to their latest regulatory filings, with 47 funds opening new positions, 99 increasing their positions, 111 reducing their positions, and 35 closing their positions.
34% more first-time investments, than exits
New positions opened: 47 | Existing positions closed: 35
33% more call options, than puts
Call options by funds: $1.54M | Put options by funds: $1.16M
2.11% more ownership
Funds ownership: 24.84% → 26.94% (+2.1%)
2% more funds holding
Funds holding: 364 → 370 (+6)
0% more funds holding in top 10
Funds holding in top 10: 3 → 3 (0)
4% less capital invested
Capital invested by funds: $591M → $567M (-$23.5M)
11% less repeat investments, than reductions
Existing positions increased: 99 | Existing positions reduced: 111
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Thrivent Financial for Lutherans
Minneapolis,
Minnesota
|
+$28.5M |
| 2 |
FTUS
Flow Traders U.S.
New York
|
+$4.12M |
| 3 |
MML Investors Services
Springfield,
Massachusetts
|
+$2.17M |
| 4 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$1.88M |
| 5 |
DADC
D.A. Davidson & Co
Great Falls,
Montana
|
+$1.39M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BI
BFI Infinity
Zurich,
Switzerland
|
-$9.39M |
| 2 |
CIAS
Capital Investment Advisory Services
Raleigh,
North Carolina
|
-$4.84M |
| 3 |
OC
Oppenheimer & Co
New York
|
-$3.74M |
| 4 |
ASN
Advisory Services Network
Atlanta,
Georgia
|
-$2.92M |
| 5 |
Citadel Advisors
Miami,
Florida
|
-$1.72M |
HACK Hedge Fund Activity: Q4 2025 in Review
370 of the 8,269 institutional investors tracked by Wall St. Rank reported a position in Amplify Cybersecurity ETF (HACK) for Q4 2025, worth a combined $567M — down 4% from $591M a quarter earlier.
Buyers outnumbered sellers: 47 funds opened new HACK positions and 35 closed out — a net gain of 12 holders — while 99 added to existing stakes and 111 trimmed.
The largest buyer was Thrivent Financial for Lutherans, opening a new position worth an estimated $28.5M. The largest seller was BFI Infinity, cutting an estimated $9.39M.
- 370 institutional investors held Amplify Cybersecurity ETF (HACK) as of Q4 2025, up from 364 in Q3 2025.
- Funds reported $567M of Amplify Cybersecurity ETF stock for Q4 2025, down 4% quarter-over-quarter.
- 47 funds opened new Amplify Cybersecurity ETF positions in Q4 2025 and 35 closed out, a net change of +12 holders.
- The largest Amplify Cybersecurity ETF buyer in Q4 2025 was Thrivent Financial for Lutherans, an estimated $28.5M added.
- The largest Amplify Cybersecurity ETF seller in Q4 2025 was BFI Infinity, an estimated $9.39M sold.
Based on aggregated 13F filings for Q4 2025.