Jane Street’s iShares Defense Industrials Active ETF IDEF Stock Holding History
Bought
Maintained
Sold
Other funds holding IDEF
PAS
Jane Street's IDEF Position: Q2 2026 in Review
Jane Street increased its iShares Defense Industrials Active ETF (IDEF) stake by 1,089% in Q2 2026, buying an estimated $15.4M and bringing the position to 509,972 shares worth $16.2M. The position accounts for ﹤0.01% of the portfolio, ranked #2345.
Jane Street first reported a position in IDEF in Q3 2025 and has held it in 4 quarters since. 266 funds tracked by Wall St. Rank hold IDEF as of Q2 2026.
- Jane Street held 509,972 shares of iShares Defense Industrials Active ETF worth $16.2M as of Q2 2026.
- Jane Street bought 467,066 iShares Defense Industrials Active ETF shares in Q2 2026, an estimated $15.4M.
- iShares Defense Industrials Active ETF made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #2345 holding.
- Jane Street first reported a position in iShares Defense Industrials Active ETF in Q3 2025 and has held it in 4 quarters since.
- 266 funds tracked by Wall St. Rank held iShares Defense Industrials Active ETF as of Q2 2026.
Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.