IMC Chicago
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IMC Chicago’s United Microelectronic UMC Stock Holding History

IMC Chicago’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 		$4.78M Buy
175,800
+111,700
+174% +$1.91M ﹤0.01% 2137
2026
Q1 		$576K Sell
64,100
-1,800
-3% -$17.6K ﹤0.01% 3891
2025
Q4 		$518K Buy
65,900
+26,800
+69% +$203K ﹤0.01% 3452
2025
Q3 		$296K Buy
+39,100
New +$277K ﹤0.01% 3412
2025
Q2 		– Sell
-57,500
Closed -$411K – 3611
2025
Q1 		$411K Buy
+57,500
New +$366K ﹤0.01% 2774

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

IMC Chicago's UMC Position: Q2 2026 in Review

IMC Chicago increased its United Microelectronic (UMC) stake by 67% in Q2 2026, buying an estimated $269K and bringing the position to 39,242 shares worth $1.07M. The position accounts for ﹤0.01% of the portfolio, ranked #3782.

IMC Chicago first reported a position in UMC in Q4 2024 and has held it in 3 quarters since. 363 funds tracked by Wall St. Rank hold UMC as of Q2 2026.

  • IMC Chicago held 39,242 shares of United Microelectronic worth $1.07M as of Q2 2026.
  • IMC Chicago bought 15,713 United Microelectronic shares in Q2 2026, an estimated $269K.
  • United Microelectronic made up ﹤0.01% of IMC Chicago's portfolio in Q2 2026, its #3782 holding.
  • IMC Chicago first reported a position in United Microelectronic in Q4 2024 and has held it in 3 quarters since.
  • 363 funds tracked by Wall St. Rank held United Microelectronic as of Q2 2026.

Based on IMC Chicago's 13F filing for Q2 2026, filed 6 Aug 2026.