United Microelectronics Corporation
UMC | NYSE
$25.36
+$0.75 (+3.05%)
Sep 21, 2026, 11:54 AM ET · Market open
Institutional Ownership
Net InflowTotal Institutions
335
Total Ownership
6.99%
Capital Flow
+$365.75M
Shares Change
+21.83M
Ownership Distribution
Institutions (6.99%)
Others (93.01%)
Institutional Sentiment
Overall: bullishEquity Sentiment & Activity
bullishNew Positions
76
Increased Positions
220
Reduced Positions
56
Closed Positions
27
New (76)
Increased (220)
Reduced (56)
Closed (27)
Options Sentiment & Activity
bullishPut/Call Ratio
0.305
Call Flow
3,898,700
Put Flow
1,189,200
Calls (77%)
Puts (23%)
Super Investors
| Super Investor / Fund | Ownership | Portfolio Weight | Shares | Market Value | |
|---|---|---|---|---|---|
| Maverick Capital LTD | < 0.01% 0.00% | < 0.01% | 28.76K | 707.76K | |
| Tudor Investment Corp ET AL | < 0.01% +24.68% | < 0.01% | 21.9K | 539.01K |
Top Shareholders
| Institution | Ownership | Portfolio Weight | Shares | Market Value | |
|---|---|---|---|---|---|
| Blackrock, Inc. | 1.10% +1.90% | < 0.01% +20.34% | 27.5M +1.90% | 246.91M +16.42% | |
| AQR Capital Management LLC | 0.59% +55.47% | 0.06% +55.05% | 14.71M +55.47% | 132.13M +77.62% | |
| Two Sigma Investments, LP | 0.39% +70.13% | 0.07% +11.19% | 9.66M +70.13% | 86.71M +94.37% |
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