Jane Street’s ProShares UltraShort Industrials SIJ Stock Holding History

Jane Street’s Portfolio SIJ Stock Details SIJ Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2024 Q2	–	Sell	-2,625	Closed	-$211K	–	10121
2024 Q1	$211K	Buy	+2,625	New	+$113K	﹤0.01%	8110
2023 Q1	–	Sell	-28,475	Closed	-$1.45M	–	9834
2022 Q4	$1.45M	Buy	28,475 +125	+0.4%	+$8.23K	﹤0.01%	4370
2022 Q3	$2.24M	Buy	28,350 +22,075	+352%	+$1.54M	﹤0.01%	4014
2022 Q2	$654K	Buy	+6,275	New	+$442K	﹤0.01%	6254

Other funds holding SIJ

Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return

Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return

Jane Street's SIJ Position: Q2 2026 in Review

Jane Street sold out of ProShares UltraShort Industrials (SIJ) in Q2 2026, closing a stake of 6,521 shares — an estimated $136K sold.

Jane Street first reported a position in SIJ in Q4 2017 and held it in 7 quarters. The position peaked at $405K in Q4 2017. 2 funds tracked by Wall St. Rank hold SIJ as of Q2 2026.

Jane Street reported no remaining ProShares UltraShort Industrials position as of Q2 2026 after selling out during the quarter.
Jane Street sold 6,521 ProShares UltraShort Industrials shares in Q2 2026, an estimated $136K.
Jane Street first reported a position in ProShares UltraShort Industrials in Q4 2017 and held it in 7 quarters.
Jane Street's ProShares UltraShort Industrials position peaked at $405K in Q4 2017.
2 funds tracked by Wall St. Rank held ProShares UltraShort Industrials as of Q2 2026.

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