Jim Simons’s ProShares UltraPro Short S&P 500 SPXU Stock Holding History

Jim Simons’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 Q2	$6.38M	Buy	+172,025	New	+$7.12M	0.01%	1315
2020 Q2	–	Sell	-431	Closed	-$1.04M	–	3753
2020 Q1	$1.04M	Buy	+431	New	+$968K	﹤0.01%	2405
2019 Q1	–	Sell	-46	Closed	-$212K	–	3686
2018 Q4	$212K	Buy	+46	New	+$183K	﹤0.01%	3118

Other funds holding SPXU

T2I

Turim 21 Investimentos Rio De Janeiro, Brazil $613M AUM 14.25% 1-Year Est. Return

IMC Chicago Chicago, Illinois $419B AUM 72.04% 1-Year Est. Return

Jump Financial Chicago, Illinois $12.4B AUM 62.79% 1-Year Est. Return

Simplex Trading Chicago, Illinois $171B AUM 85% 1-Year Est. Return

SPIA

Steward Partners Investment Advisory New York $19.6B AUM 29.84% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

EWA

EverSource Wealth Advisors Birmingham, Alabama $2.97B AUM 28.72% 1-Year Est. Return

StoneX Group New York $2.48B AUM 33.54% 1-Year Est. Return

Optiver Holding Amsterdam, Netherlands $371B AUM 64.6% 1-Year Est. Return

RMP

Richards, Merrill & Peterson Spokane, Washington $315M AUM 30.62% 1-Year Est. Return

Jim Simons's SPXU Position: Q2 2026 in Review

Jim Simons opened a new position in ProShares UltraPro Short S&P 500 (SPXU) in Q2 2026: 172,025 shares worth $6.38M. The stake represents 0.01% of the portfolio and ranks #1315 among its holdings. This is a return to the name: Jim Simons previously reported a position in SPXU as recently as Q1 2020.

Jim Simons first reported a position in SPXU in Q4 2018 and has held it in 3 quarters since. 33 funds tracked by Wall St. Rank hold SPXU as of Q2 2026.

Jim Simons held 172,025 shares of ProShares UltraPro Short S&P 500 worth $6.38M as of Q2 2026.
ProShares UltraPro Short S&P 500 was a new Jim Simons position in Q2 2026.
ProShares UltraPro Short S&P 500 made up 0.01% of Jim Simons's portfolio in Q2 2026, its #1315 holding.
Jim Simons first reported a position in ProShares UltraPro Short S&P 500 in Q4 2018 and has held it in 3 quarters since.
33 funds tracked by Wall St. Rank held ProShares UltraPro Short S&P 500 as of Q2 2026.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.