Walleye Trading
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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 		$5.71M Buy
209,800
+171,700
+451% +$2.93M 0.01% 1227
2026
Q1 		$342K Buy
38,100
+8,800
+30% +$85.8K ﹤0.01% 2808
2025
Q4 		$230K Hold
29,300
– – ﹤0.01% 3323
2025
Q3 		$222K Buy
+29,300
New +$208K ﹤0.01% 3300
2025
Q2 		– Sell
-6,800
Closed -$48.6K – 4722
2025
Q1 		$48.6K Buy
+6,800
New +$43.3K ﹤0.01% 3617
2024
Q4 		– Sell
-900
Closed -$7.58K – 4691
2024
Q3 		$7.58K Buy
+900
New +$7.53K ﹤0.01% 3803
2024
Q2 		– Sell
-10,200
Closed -$82.5K – 4930
2024
Q1 		$82.5K Buy
+10,200
New +$81.2K ﹤0.01% 3841
2023
Q4 		– Sell
-173,700
Closed -$1.23M – 5521
2023
Q3 		$1.23M Buy
173,700
+23,600
+16% +$171K ﹤0.01% 2193
2023
Q2 		$1.18M Sell
150,100
-139,900
-48% -$1.15M ﹤0.01% 2025
2023
Q1 		$2.54M Sell
290,000
-135,100
-32% -$1.09M 0.01% 1507
2022
Q4 		$2.78M Sell
425,100
-75,400
-15% -$499K 0.01% 1461
2022
Q3 		$2.79M Buy
500,500
+500,300
+250,150% +$3.3M 0.01% 1452
2022
Q2 		$1K Sell
200
-157,200
-100% -$1.29M ﹤0.01% 5005
2022
Q1 		$1.44M Buy
+157,400
New +$1.56M ﹤0.01% 1935

Other funds holding UMC

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Rafferty Asset Management
Rafferty Asset Management New York $43.9B AUM 121.74% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Man Group
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. 364 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.
  • 364 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.