Jeff Yass’s IB Acquisition Corp IBAC Stock Holding History

Jeff Yass’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	–	Sell	-18,172	Closed	-$191K	–	14315
2025 Q4	$191K	Sell	18,172 -6,939	-28%	-$72.6K	﹤0.01%	10924
2025 Q3	$264K	Buy	25,111 +9,416	+60%	+$99K	﹤0.01%	10411
2025 Q2	$164K	Sell	15,695 -2,266	-13%	-$23.6K	﹤0.01%	11409
2025 Q1	$185K	Buy	+17,961	New	+$184K	﹤0.01%	11018

Other funds holding IBAC

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

FTUS

Flow Traders U.S. New York $2.43B AUM 44.44% 1-Year Est. Return

Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return

Clear Street New York $39.5B AUM 124.03% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

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

Jeff Yass's IBAC Position: Q1 2026 in Review

Jeff Yass sold out of IB Acquisition Corp (IBAC) in Q1 2026, closing a stake of 18,172 shares — an estimated $191K sold.

Jeff Yass first reported a position in IBAC in Q1 2025 and held it in 4 quarters. The position peaked at $264K in Q3 2025. 6 funds tracked by Wall St. Rank hold IBAC as of Q1 2026.

Jeff Yass reported no remaining IB Acquisition Corp position as of Q1 2026 after selling out during the quarter.
Jeff Yass sold 18,172 IB Acquisition Corp shares in Q1 2026, an estimated $191K.
Jeff Yass first reported a position in IB Acquisition Corp in Q1 2025 and held it in 4 quarters.
Jeff Yass's IB Acquisition Corp position peaked at $264K in Q3 2025.
6 funds tracked by Wall St. Rank held IB Acquisition Corp as of Q1 2026.

Based on Susquehanna International Group's 13F filing for Q1 2026, filed 15 May 2026.