Jane Street
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Jane Street’s REX American Resources REX Stock Holding History

Jane Street’s Portfolio REX Stock Details REX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2024
Q1 		– Sell
-12,000
Closed -$284K – 9940
2023
Q4 		$284K Buy
+12,000
New +$240K ﹤0.01% 7675

Other funds holding REX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
SFM
Systematic Financial Management Teaneck, New Jersey $5.02B AUM 66.06% 1-Year Est. Return
MP
Mangrove Partners Greenwich, Connecticut $1.52B AUM 36.54% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

Jane Street's REX Position: Q2 2026 in Review

Jane Street reduced its REX American Resources (REX) stake by 86% in Q2 2026, selling an estimated $4.72M and leaving 17,112 shares worth $773K. The position accounts for ﹤0.01% of the portfolio, ranked #7085.

Jane Street first reported a position in REX in Q2 2014 and has held it in 19 quarters since. The position peaked at $6.21M in Q3 2025. 230 funds tracked by Wall St. Rank hold REX as of Q2 2026.

  • Jane Street held 17,112 shares of REX American Resources worth $773K as of Q2 2026.
  • Jane Street sold 102,016 REX American Resources shares in Q2 2026, an estimated $4.72M.
  • REX American Resources made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #7085 holding.
  • Jane Street first reported a position in REX American Resources in Q2 2014 and has held it in 19 quarters since.
  • Jane Street's REX American Resources position peaked at $6.21M in Q3 2025.
  • 230 funds tracked by Wall St. Rank held REX American Resources as of Q2 2026.

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