United Microelectronic
242 hedge funds and large institutions have $1.16B invested in United Microelectronic in 2025 Q2 according to their latest regulatory filings, with 48 funds opening new positions, 85 increasing their positions, 72 reducing their positions, and 36 closing their positions.
33% more first-time investments, than exits
New positions opened: 48 | Existing positions closed: 36
18% more repeat investments, than reductions
Existing positions increased: 85 | Existing positions reduced: 72
3% more funds holding
Funds holding: 236 → 242 (+6)
0.15% less ownership
Funds ownership: 6.17% → 6.02% (-0.15%)
15% less capital inflows, than outflows
Capital inflows: $146M | Capital outflows: $172M
81% less call options, than puts
Call options by funds: $1.6M | Put options by funds: $8.51M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Morgan Stanley
New York
|
+$28.3M |
| 2 |
Maple Rock Capital Partners
Toronto,
Ontario, Canada
|
+$23.3M |
| 3 |
Rafferty Asset Management
New York
|
+$21M |
| 4 |
Barclays
London,
United Kingdom
|
+$11.8M |
| 5 |
BlackRock
New York
|
+$11.3M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
-$58.1M |
| 2 |
Citigroup
New York
|
-$17.1M |
| 3 |
Citadel Advisors
Miami,
Florida
|
-$14.9M |
| 4 |
Nomura Holdings
Tokyo,
Japan
|
-$11M |
| 5 |
LMR Partners
London,
United Kingdom
|
-$7.15M |
UMC Hedge Fund Activity: Q2 2025 in Review
242 of the 7,629 institutional investors tracked by Wall St. Rank reported a position in United Microelectronic (UMC) for Q2 2025, worth a combined $1.16B — up 4.8% from $1.11B a quarter earlier.
Buyers outnumbered sellers: 48 funds opened new UMC positions and 36 closed out — a net gain of 12 holders — while 85 added to existing stakes and 72 trimmed.
The largest buyer was Morgan Stanley, adding an estimated $28.3M. The largest seller was Millennium Management, cutting an estimated $58.1M.
- 242 institutional investors held United Microelectronic (UMC) as of Q2 2025, up from 236 in Q1 2025.
- Funds reported $1.16B of United Microelectronic stock for Q2 2025, up 4.8% quarter-over-quarter.
- 48 funds opened new United Microelectronic positions in Q2 2025 and 36 closed out, a net change of +12 holders.
- The largest United Microelectronic buyer in Q2 2025 was Morgan Stanley, an estimated $28.3M added.
- The largest United Microelectronic seller in Q2 2025 was Millennium Management, an estimated $58.1M sold.
Based on aggregated 13F filings for Q2 2025.