Jane Street’s STAK Inc STAK Stock Holding History

Jane Street’s Portfolio STAK Stock Details STAK Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$500K	Buy	131,219 +76,816	+141%	+$181K	﹤0.01%	8025
2026 Q1	$54.4K	Buy	+54,403	New	+$31.7K	﹤0.01%	10941

Other funds holding STAK

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

XTX Topco George Town, Cayman Islands $7.72B AUM 32.88% 1-Year Est. Return

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

SRL

Scientech Research LLC Jersey City, New Jersey $123M AUM 198.31% 1-Year Est. Return

TRCT

Tower Research Capital (TRC) New York $4.08B AUM 58.77% 1-Year Est. Return

CIAM

Caitong International Asset Management Hong Kong $729M AUM 1,176.98% 1-Year Est. Return

Jane Street's STAK Position: Q2 2026 in Review

Jane Street increased its STAK Inc (STAK) stake by 141% in Q2 2026, buying an estimated $181K and bringing the position to 131,219 shares worth $500K. The position accounts for ﹤0.01% of the portfolio, ranked #8025.

Jane Street first reported a position in STAK in Q1 2026 and has held it in 2 quarters since. 8 funds tracked by Wall St. Rank hold STAK as of Q2 2026.

Jane Street held 131,219 shares of STAK Inc worth $500K as of Q2 2026.
Jane Street bought 76,816 STAK Inc shares in Q2 2026, an estimated $181K.
STAK Inc made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #8025 holding.
Jane Street first reported a position in STAK Inc in Q1 2026 and has held it in 2 quarters since.
8 funds tracked by Wall St. Rank held STAK Inc as of Q2 2026.

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