BlackRock ETF Trust iShares Defense Industrials and Tech Active ETF
IDEF
220 hedge funds and large institutions have $3.38B invested in BlackRock ETF Trust iShares Defense Industrials and Tech Active ETF in 2026 Q1 according to their latest regulatory filings, with 209 funds opening new positions, 10 increasing their positions, 0 reducing their positions, and 2 closing their positions.
18,358% more capital invested
Capital invested by funds: $18.3M → $3.38B (+$3.36B)
10,350% more first-time investments, than exits
New positions opened: 209 | Existing positions closed: 2
7,561.95% more ownership
Funds ownership: 43.73% → 7,605.68% (+7,562%)
1,592% more funds holding
Funds holding: 13 → 220 (+207)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Envestnet Asset Management
Chicago,
Illinois
|
+$1.55B |
| 2 |
LPL Financial
San Diego,
California
|
+$444M |
| 3 |
Morgan Stanley
New York
|
+$155M |
| 4 |
Carson Wealth (CWM LLC)
Omaha,
Nebraska
|
+$148M |
| 5 |
Envestnet Portfolio Solutions
Chicago,
Illinois
|
+$137M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
-$1.16M |
| 2 |
CI
CX Institutional
Auburn,
Indiana
|
-$3K |
IDEF Hedge Fund Activity: Q1 2026 in Review
220 of the 8,208 institutional investors tracked by Wall St. Rank reported a position in BlackRock ETF Trust iShares Defense Industrials and Tech Active ETF (IDEF) for Q1 2026, worth a combined $3.38B — up 18,358% from $18.3M a quarter earlier.
Buyers outnumbered sellers: 209 funds opened new IDEF positions and 2 closed out — a net gain of 207 holders — while 10 added to existing stakes and 0 trimmed.
The largest buyer was Envestnet Asset Management, opening a new position worth an estimated $1.55B. The largest seller was Citadel Advisors, exiting entirely with an estimated $1.16M sold.
- 220 institutional investors held BlackRock ETF Trust iShares Defense Industrials and Tech Active ETF (IDEF) as of Q1 2026, up from 13 in Q4 2025.
- Funds reported $3.38B of BlackRock ETF Trust iShares Defense Industrials and Tech Active ETF stock for Q1 2026, up 18,358% quarter-over-quarter.
- 209 funds opened new BlackRock ETF Trust iShares Defense Industrials and Tech Active ETF positions in Q1 2026 and 2 closed out, a net change of +207 holders.
- The largest BlackRock ETF Trust iShares Defense Industrials and Tech Active ETF buyer in Q1 2026 was Envestnet Asset Management, an estimated $1.55B added.
- The largest BlackRock ETF Trust iShares Defense Industrials and Tech Active ETF seller in Q1 2026 was Citadel Advisors, an estimated $1.16M sold.
Based on aggregated 13F filings for Q1 2026.