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IDEF

iShares Defense Industrials Active ETF

219 hedge funds and large institutions have $3.38B invested in iShares Defense Industrials Active ETF in 2026 Q1 according to their latest regulatory filings, with 208 funds opening new positions, 10 increasing their positions, 0 reducing their positions, and 2 closing their positions.

New
Increased
Maintained
Reduced
Closed

18,320% more capital invested

Capital invested by funds: $18.3M → $3.38B (+$3.36B)

10,300% more first-time investments, than exits

New positions opened: 208 | Existing positions closed: 2

1,585% more funds holding

Funds holding: 13219 (+206)

59.78% more ownership

Funds ownership: 43.73%103.51% (+60%)

Holders
219
Holders Change
+206
Holders Change %
+1,584.62%
% of All Funds
2.67%
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
208
Increased
10
Reduced
Closed
2
Calls
Puts
Net Calls
Net Calls Change

IDEF Hedge Fund Activity: Q1 2026 in Review

219 of the 8,187 institutional investors tracked by Wall St. Rank reported a position in iShares Defense Industrials Active ETF (IDEF) for Q1 2026, worth a combined $3.38B — up 18,320% from $18.3M a quarter earlier.

Buyers outnumbered sellers: 208 funds opened new IDEF positions and 2 closed out — a net gain of 206 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.

  • 219 institutional investors held iShares Defense Industrials Active ETF (IDEF) as of Q1 2026, up from 13 in Q4 2025.
  • Funds reported $3.38B of iShares Defense Industrials Active ETF stock for Q1 2026, up 18,320% quarter-over-quarter.
  • 208 funds opened new iShares Defense Industrials Active ETF positions in Q1 2026 and 2 closed out, a net change of +206 holders.
  • The largest iShares Defense Industrials Active ETF buyer in Q1 2026 was Envestnet Asset Management, an estimated $1.55B added.
  • The largest iShares Defense Industrials Active ETF seller in Q1 2026 was Citadel Advisors, an estimated $1.16M sold.

Based on aggregated 13F filings for Q1 2026.