Jane Street’s Defiance Quantum ETF QTUM Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$3.03M Buy
18,300
+3,100
+20% +$446K ﹤0.01% 4494
2026
Q1
$1.63M Sell
15,200
-400
-3% -$45.8K ﹤0.01% 5471
2025
Q4
$1.71M Buy
15,600
+8,700
+126% +$959K ﹤0.01% 5106
2025
Q3
$724K Buy
+6,900
New +$661K ﹤0.01% 7021

Other funds holding QTUM

Jane Street's QTUM Position: Q2 2026 in Review

Jane Street increased its Defiance Quantum ETF (QTUM) stake by 622% in Q2 2026, buying an estimated $16.2M and bringing the position to 131,106 shares worth $21.7M. The position accounts for ﹤0.01% of the portfolio, ranked #2085.

Jane Street first reported a position in QTUM in Q3 2018 and has held it in 23 quarters since. 562 funds tracked by Wall St. Rank hold QTUM as of Q2 2026.

  • Jane Street held 131,106 shares of Defiance Quantum ETF worth $21.7M as of Q2 2026.
  • Jane Street bought 112,937 Defiance Quantum ETF shares in Q2 2026, an estimated $16.2M.
  • Defiance Quantum ETF made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #2085 holding.
  • Jane Street first reported a position in Defiance Quantum ETF in Q3 2018 and has held it in 23 quarters since.
  • 562 funds tracked by Wall St. Rank held Defiance Quantum ETF as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.