Parallax Volatility Advisers
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Parallax Volatility Advisers’s United Microelectronic UMC Stock Holding History

Parallax Volatility Advisers’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
2024
Q2 		– Sell
-71,900
Closed -$582K – 2271
2024
Q1 		$582K Hold
71,900
– – ﹤0.01% 1369
2023
Q4 		$608K Buy
+71,900
New +$548K ﹤0.01% 1550
2023
Q1 		– Sell
-76,100
Closed -$497K – 3207
2022
Q4 		$497K Buy
76,100
+1,100
+1% +$7.29K ﹤0.01% 1882
2022
Q3 		$418K Sell
75,000
-245,900
-77% -$1.62M ﹤0.01% 2044
2022
Q2 		$2.17M Buy
320,900
+180,700
+129% +$1.48M ﹤0.01% 1312
2022
Q1 		$1.28M Sell
140,200
-680,000
-83% -$6.74M ﹤0.01% 1551
2021
Q4 		$9.6M Sell
820,200
-77,500
-9% -$862K 0.01% 610
2021
Q3 		$10.3M Buy
897,700
+260,400
+41% +$2.79M 0.01% 636
2021
Q2 		$6.02M Buy
+637,300
New +$5.97M 0.01% 613

Other funds holding UMC

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Man Group
Man Group London, United Kingdom $55.1B AUM 24.23% 1-Year Est. Return
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT) London, United Kingdom $89.9B AUM 20.22% 1-Year Est. Return

Parallax Volatility Advisers's UMC Position: Q1 2026 in Review

Parallax Volatility Advisers sold out of United Microelectronic (UMC) in Q1 2026, closing a stake of 2,550 shares — an estimated $20K sold.

Parallax Volatility Advisers first reported a position in UMC in Q1 2021 and held it in 13 quarters. The position peaked at $2.04M in Q1 2021. 317 funds tracked by Wall St. Rank hold UMC as of Q1 2026.

  • Parallax Volatility Advisers reported no remaining United Microelectronic position as of Q1 2026 after selling out during the quarter.
  • Parallax Volatility Advisers sold 2,550 United Microelectronic shares in Q1 2026, an estimated $20K.
  • Parallax Volatility Advisers first reported a position in United Microelectronic in Q1 2021 and held it in 13 quarters.
  • Parallax Volatility Advisers's United Microelectronic position peaked at $2.04M in Q1 2021.
  • 317 funds tracked by Wall St. Rank held United Microelectronic as of Q1 2026.

Based on Parallax Volatility Advisers's 13F filing for Q1 2026, filed 15 May 2026.