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 		$36.1M Buy
1,326,500
+781,400
+143% +$13.4M 0.05% 330
2026
Q1 		$4.89M Buy
545,100
+412,300
+310% +$4.02M 0.01% 1319
2025
Q4 		$1.04M Sell
132,800
-4,600
-3% -$34.9K ﹤0.01% 2843
2025
Q3 		$1.04M Buy
137,400
+63,800
+87% +$453K ﹤0.01% 2990
2025
Q2 		$563K Sell
73,600
-171,500
-70% -$1.27M ﹤0.01% 3285
2025
Q1 		$1.75M Buy
245,100
+107,400
+78% +$684K 0.01% 1937
2024
Q4 		$894K Sell
137,700
-23,600
-15% -$169K ﹤0.01% 2670
2024
Q3 		$1.36M Sell
161,300
-87,200
-35% -$730K ﹤0.01% 2048
2024
Q2 		$2.18M Sell
248,500
-46,300
-16% -$382K 0.01% 1377
2024
Q1 		$2.38M Buy
294,800
+157,000
+114% +$1.25M 0.01% 1358
2023
Q4 		$1.17M Sell
137,800
-60,700
-31% -$463K ﹤0.01% 2324
2023
Q3 		$1.4M Buy
198,500
+60,800
+44% +$440K ﹤0.01% 1943
2023
Q2 		$1.09M Sell
137,700
-303,400
-69% -$2.5M ﹤0.01% 2284
2023
Q1 		$3.86M Sell
441,100
-482,900
-52% -$3.91M 0.01% 1009
2022
Q4 		$6.03M Buy
924,000
+126,700
+16% +$839K 0.01% 1031
2022
Q3 		$4.44M Sell
797,300
-489,000
-38% -$3.23M 0.01% 1255
2022
Q2 		$8.71M Buy
1,286,300
+16,400
+1% +$135K 0.01% 938
2022
Q1 		$11.6M Buy
1,269,900
+615,700
+94% +$6.1M 0.01% 895
2021
Q4 		$7.65M Buy
654,200
+78,500
+14% +$873K 0.01% 1338
2021
Q3 		$6.58M Sell
575,700
-630,400
-52% -$6.76M 0.01% 1433
2021
Q2 		$11.4M Sell
1,206,100
-13,600
-1% -$127K 0.01% 974
2021
Q1 		$11.1M Buy
1,219,700
+962,900
+375% +$8.9M 0.02% 862
2020
Q4 		$2.17M Buy
256,800
+221,100
+619% +$1.44M ﹤0.01% 1980
2020
Q3 		$171K Buy
+35,700
New +$133K ﹤0.01% 3789
2018
Q3 		– Sell
-400
Closed -$1K – 5632
2018
Q2 		$1K Buy
+400
New +$1.09K ﹤0.01% 5001

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.