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
2026
Q1 		– Sell
-2,550
Closed -$20K – 1851
2025
Q4 		$20K Sell
2,550
-3,978
-61% -$30.2K ﹤0.01% 1536
2025
Q3 		$49.5K Buy
6,528
+330
+5% +$2.34K ﹤0.01% 1471
2025
Q2 		$47.4K Sell
6,198
-4,401
-42% -$32.7K ﹤0.01% 1441
2025
Q1 		$75.8K Sell
10,599
-117,857
-92% -$751K ﹤0.01% 1378
2024
Q4 		$834K Buy
128,456
+100,289
+356% +$718K ﹤0.01% 1380
2024
Q3 		$237K Buy
28,167
+20,549
+270% +$172K ﹤0.01% 1664
2024
Q2 		$66.7K Buy
+7,618
New +$62.8K ﹤0.01% 1735
2023
Q2 		– Sell
-12,855
Closed -$113K – 2873
2023
Q1 		$113K Sell
12,855
-133,902
-91% -$1.08M ﹤0.01% 2109
2022
Q4 		$958K Sell
146,757
-41,490
-22% -$275K ﹤0.01% 1671
2022
Q3 		$1.05M Buy
188,247
+114,001
+154% +$752K ﹤0.01% 1721
2022
Q2 		$503K Buy
74,246
+69,901
+1,609% +$573K ﹤0.01% 1905
2022
Q1 		$40K Buy
+4,345
New +$43.1K ﹤0.01% 2512
2021
Q2 		– Sell
-223,896
Closed -$2.1M – 3577
2021
Q1 		$2.04M Buy
+223,896
New +$2.07M ﹤0.01% 1734

Other funds holding UMC

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 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
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Man Group
Man Group London, United Kingdom $62.7B AUM 29.77% 1-Year Est. Return
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT) London, United Kingdom $108B AUM 37.29% 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. 318 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.
  • 318 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.