Jane Street’s Roundhill Box Spread ETF XBOX Stock Holding History

Jane Street’s Portfolio XBOX Stock Details XBOX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$328K	Sell	3,279 -7,579	-70%	-$754K	﹤0.01%	9019
2026 Q1	$1.07M	Buy	+10,858	New	+$1.07M	﹤0.01%	6353

Other funds holding XBOX

Exchange Traded Concepts Oklahoma City, Oklahoma $21.9B AUM 68.6% 1-Year Est. Return

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

HRT Financial New York $54.8B AUM 81.03% 1-Year Est. Return

Old Mission Capital Chicago, Illinois $6.31B AUM 20.77% 1-Year Est. Return

Compass Ion Advisors Conshohocken, Pennsylvania $1.19B AUM 12.23% 1-Year Est. Return

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

Jane Street's XBOX Position: Q2 2026 in Review

Jane Street reduced its Roundhill Box Spread ETF (XBOX) stake by 70% in Q2 2026, selling an estimated $754K and leaving 3,279 shares worth $328K. The position accounts for ﹤0.01% of the portfolio, ranked #9019.

Jane Street first reported a position in XBOX in Q1 2026 and has held it in 2 quarters since. The position peaked at $1.07M in Q1 2026. 7 funds tracked by Wall St. Rank hold XBOX as of Q2 2026.

Jane Street held 3,279 shares of Roundhill Box Spread ETF worth $328K as of Q2 2026.
Jane Street sold 7,579 Roundhill Box Spread ETF shares in Q2 2026, an estimated $754K.
Roundhill Box Spread ETF made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #9019 holding.
Jane Street first reported a position in Roundhill Box Spread ETF in Q1 2026 and has held it in 2 quarters since.
Jane Street's Roundhill Box Spread ETF position peaked at $1.07M in Q1 2026.
7 funds tracked by Wall St. Rank held Roundhill Box Spread ETF as of Q2 2026.

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