Group One Trading
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Group One Trading’s ProShares UltraPro Short S&P 500 SPXU Stock Holding History

Group One Trading’s Portfolio SPXU Stock Details SPXU Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$10.2M Sell
180,200
-152,100
-46% -$7.7M 0.02% 829
2025
Q4 		$16.5M Buy
+332,300
New +$17.3M 0.03% 652

Other funds holding SPXU

T2I
Turim 21 Investimentos Rio De Janeiro, Brazil $399M AUM 20.13% 1-Year Est. Return
IMC Chicago
IMC Chicago Chicago, Illinois $278B AUM 44.93% 1-Year Est. Return
RAM
Revere Asset Management Dallas, Texas $195M AUM 80.44% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return
HF
HRT Financial New York $40.1B AUM 58.22% 1-Year Est. Return
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
JF
Jump Financial Chicago, Illinois $7.5B AUM 33.9% 1-Year Est. Return
MWM
Moulton Wealth Management Spokane, Washington $152M AUM 21.14% 1-Year Est. Return
TRCT
Tower Research Capital (TRC) New York $3.85B AUM 32.11% 1-Year Est. Return
Simplex Trading
Simplex Trading Chicago, Illinois $149B AUM 62.07% 1-Year Est. Return

Group One Trading's SPXU Position: Q1 2026 in Review

Group One Trading opened a new position in ProShares UltraPro Short S&P 500 (SPXU) in Q1 2026: 6,424 shares worth $364K. The stake represents ﹤0.01% of the portfolio and ranks #3629 among its holdings. This is a return to the name: Group One Trading previously reported a position in SPXU as recently as Q3 2025.

Group One Trading first reported a position in SPXU in Q1 2021 and has held it in 16 quarters since. The position peaked at $1.97M in Q4 2021. 44 funds tracked by Wall St. Rank hold SPXU as of Q1 2026.

  • Group One Trading held 6,424 shares of ProShares UltraPro Short S&P 500 worth $364K as of Q1 2026.
  • ProShares UltraPro Short S&P 500 was a new Group One Trading position in Q1 2026.
  • ProShares UltraPro Short S&P 500 made up ﹤0.01% of Group One Trading's portfolio in Q1 2026, its #3629 holding.
  • Group One Trading first reported a position in ProShares UltraPro Short S&P 500 in Q1 2021 and has held it in 16 quarters since.
  • Group One Trading's ProShares UltraPro Short S&P 500 position peaked at $1.97M in Q4 2021.
  • 44 funds tracked by Wall St. Rank held ProShares UltraPro Short S&P 500 as of Q1 2026.

Based on Group One Trading's 13F filing for Q1 2026, filed 13 May 2026.