Group One Trading
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Group One Trading’s United Microelectronic UMC Stock Holding History

Group One 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 		$18.1M Buy
666,600
+282,000
+73% +$4.82M 0.03% 590
2026
Q1 		$3.45M Buy
384,600
+383,900
+54,843% +$3.74M 0.01% 1589
2025
Q4 		$5.5K Buy
+700
New +$5.31K ﹤0.01% 7141
2025
Q3 		– Sell
-100
Closed -$765 – 9198
2025
Q2 		$765 Sell
100
-3,500
-97% -$26K ﹤0.01% 7608
2025
Q1 		$25.7K Sell
3,600
-16,500
-82% -$105K ﹤0.01% 5650
2024
Q4 		$130K Sell
20,100
-1,100
-5% -$7.88K ﹤0.01% 4292
2024
Q3 		$179K Sell
21,200
-4,600
-18% -$38.5K ﹤0.01% 3729
2024
Q2 		$226K Sell
25,800
-37,000
-59% -$305K ﹤0.01% 3290
2024
Q1 		$508K Buy
62,800
+27,000
+75% +$215K ﹤0.01% 2709
2023
Q4 		$303K Sell
35,800
-4,400
-11% -$33.5K ﹤0.01% 3498
2023
Q3 		$284K Sell
40,200
-131,500
-77% -$953K ﹤0.01% 3487
2023
Q2 		$1.35M Buy
171,700
+157,100
+1,076% +$1.29M ﹤0.01% 2067
2023
Q1 		$128K Sell
14,600
-252,800
-95% -$2.05M ﹤0.01% 4073
2022
Q4 		$1.75M Sell
267,400
-372,700
-58% -$2.47M ﹤0.01% 1940
2022
Q3 		$3.56M Sell
640,100
-1,621,200
-72% -$10.7M 0.01% 1438
2022
Q2 		$15.3M Sell
2,261,300
-240,200
-10% -$1.97M 0.02% 601
2022
Q1 		$22.8M Buy
2,501,500
+1,181,100
+89% +$11.7M 0.02% 547
2021
Q4 		$15.4M Buy
1,320,400
+715,600
+118% +$7.96M 0.01% 815
2021
Q3 		$6.91M Buy
604,800
+204,200
+51% +$2.19M 0.01% 1394
2021
Q2 		$3.79M Buy
400,600
+206,800
+107% +$1.94M ﹤0.01% 1967
2021
Q1 		$1.77M Buy
193,800
+102,400
+112% +$947K ﹤0.01% 2603
2020
Q4 		$771K Buy
+91,400
New +$596K ﹤0.01% 2878
2015
Q4 		– Sell
-3,500
Closed -$6K – 5121
2015
Q3 		$6K Hold
3,500
– – ﹤0.01% 4467
2015
Q2 		$7K Buy
+3,500
New +$7.88K ﹤0.01% 4407

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

Group One Trading's UMC Position: Q2 2026 in Review

Group One Trading sold out of United Microelectronic (UMC) in Q2 2026, closing a stake of 113,737 shares — an estimated $1.94M sold.

Group One Trading first reported a position in UMC in Q2 2013 and held it in 15 quarters. The position peaked at $7.63M in Q2 2022. 362 funds tracked by Wall St. Rank hold UMC as of Q2 2026.

  • Group One Trading reported no remaining United Microelectronic position as of Q2 2026 after selling out during the quarter.
  • Group One Trading sold 113,737 United Microelectronic shares in Q2 2026, an estimated $1.94M.
  • Group One Trading first reported a position in United Microelectronic in Q2 2013 and held it in 15 quarters.
  • Group One Trading's United Microelectronic position peaked at $7.63M in Q2 2022.
  • 362 funds tracked by Wall St. Rank held United Microelectronic as of Q2 2026.

Based on Group One Trading's 13F filing for Q2 2026, filed 14 Aug 2026.