Jane Street’s IB Acquisition Corp IBAC Stock Holding History

Jane Street’s Portfolio IBAC Stock Details IBAC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$217K	Buy	+20,373	New	+$217K	﹤0.01%	9958
2025 Q3	–	Sell	-12,868	Closed	-$135K	–	11981
2025 Q2	$135K	Buy	+12,868	New	+$134K	﹤0.01%	8815

Other funds holding IBAC

HRT Financial New York $40.1B AUM 58.22% 1-Year Est. Return

FTUS

Flow Traders U.S. New York $3.16B AUM 19.52% 1-Year Est. Return

Clear Street New York $24.6B AUM 56.26% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

Jane Street's IBAC Position: Q1 2026 in Review

Jane Street opened a new position in IB Acquisition Corp (IBAC) in Q1 2026: 20,373 shares worth $217K. The stake represents ﹤0.01% of the portfolio and ranks #9958 among its holdings. This is a return to the name: Jane Street previously reported a position in IBAC as recently as Q2 2025.

Jane Street first reported a position in IBAC in Q2 2025 and has held it in 2 quarters since. 6 funds tracked by Wall St. Rank hold IBAC as of Q1 2026.

Jane Street held 20,373 shares of IB Acquisition Corp worth $217K as of Q1 2026.
IB Acquisition Corp was a new Jane Street position in Q1 2026.
IB Acquisition Corp made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #9958 holding.
Jane Street first reported a position in IB Acquisition Corp in Q2 2025 and has held it in 2 quarters since.
6 funds tracked by Wall St. Rank held IB Acquisition Corp as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.