Walleye Trading’s United Microelectronic UMC Stock Holding History

Walleye Trading’s Portfolio UMC Stock Details UMC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$6.06M	Buy	222,621 +155,350	+231%	+$2.66M	0.01%	1186
2026 Q1	$604K	Buy	+67,271	New	+$656K	﹤0.01%	2469
2025 Q2	–	Sell	-137,101	Closed	-$1.02M	–	4723
2025 Q1	$980K	Buy	+137,101	New	+$873K	﹤0.01%	2066
2024 Q4	–	Sell	-16,006	Closed	-$135K	–	4692
2024 Q3	$135K	Sell	16,006 -43,219	-73%	-$362K	﹤0.01%	3210
2024 Q2	$519K	Buy	59,225 +35,240	+147%	+$291K	﹤0.01%	2474
2024 Q1	$194K	Buy	+23,985	New	+$191K	﹤0.01%	3449

Other funds holding UMC

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

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

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

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

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

Rafferty Asset Management New York $43.9B AUM 121.74% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return

Man Group London, United Kingdom $62.7B AUM 29.77% 1-Year Est. Return

Walleye Trading's UMC Position: Q2 2026 in Review

Walleye Trading increased its United Microelectronic (UMC) stake by 231% in Q2 2026, buying an estimated $2.66M and bringing the position to 222,621 shares worth $6.06M. The position accounts for 0.01% of the portfolio, ranked #1186.

Walleye Trading first reported a position in UMC in Q1 2024 and has held it in 6 quarters since. 362 funds tracked by Wall St. Rank hold UMC as of Q2 2026.

Walleye Trading held 222,621 shares of United Microelectronic worth $6.06M as of Q2 2026.
Walleye Trading bought 155,350 United Microelectronic shares in Q2 2026, an estimated $2.66M.
United Microelectronic made up 0.01% of Walleye Trading's portfolio in Q2 2026, its #1186 holding.
Walleye Trading first reported a position in United Microelectronic in Q1 2024 and has held it in 6 quarters since.
362 funds tracked by Wall St. Rank held United Microelectronic as of Q2 2026.

Based on Walleye Trading's 13F filing for Q2 2026, filed 3 Aug 2026.