Position in UMC
as of Mar 31, 2026
· filed May 11, 2026
Position Value
$604,093
+$604,093 QoQ
Shares Held
67,271
Ownership
0.003%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2022
16 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in UMC Over Time
Shares Held
Position Value (USD)
Derivatives in UMC
reported options exposure · as of Mar 31, 2026CallValue
$342,138
CallShares
38,100
PutValue
$1,430,514
PutShares
159,300
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Semiconductors
Technology · as of Mar 31, 2026Walleye Trading LLC holds $583,778,717 across 31 Semiconductors names. UMC ranks #23 (0.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | INTC |
Intel Corp
|
5,880,531 | $259,507,833 | |
| 2 | TSM |
Taiwan Semiconductor Manufacturing Co Ltd
|
489,849 | $165,544,469 | |
| 3 | MU |
Micron Technology Inc
|
94,294 | $31,856,284 | |
| 4 | NVDA |
Nvidia Corp
|
167,525 | $29,216,360 | |
| 5 | GFS |
GLOBALFOUNDRIES Inc.
|
557,250 | $24,786,480 | |
| 6 | AMD |
Advanced Micro Devices Inc
|
91,492 | $18,612,217 | |
| 7 | TXN |
Texas Instruments Inc
|
53,556 | $10,397,361 | |
| 8 | MCHP |
Microchip Technology Inc
|
115,819 | $7,483,065 |
All Filings in UMC
Export CSV
32 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $342,138 | 38,100 | Call | Sole | 2026-05-11 | |
| 2026-03-31 | $604,093 | 67,271 | Shares | Sole | 2026-05-11 | |
| 2026-03-31 | $1,430,514 | 159,300 | Put | Sole | 2026-05-11 | |
| 2025-12-31 | $230,298 | 29,300 | Call | Sole | 2026-02-13 | |
| 2025-09-30 | $222,094 | 29,300 | Call | Sole | 2025-11-14 | |
| 2025-06-30 | $176,715 | 23,100 | Put | Sole | 2025-08-13 | |
| 2025-03-31 | $2,483,910 | 347,400 | Put | Sole | 2025-05-14 | |
| 2025-03-31 | $980,272 | 137,101 | Shares | Sole | 2025-05-14 | |
| 2025-03-31 | $48,620 | 6,800 | Call | Sole | 2025-05-14 | |
| 2024-09-30 | $7,578 | 900 | Call | Sole | 2024-11-14 | |
| 2024-09-30 | $134,770 | 16,006 | Shares | Sole | 2024-11-14 | |
| 2024-09-30 | $179,346 | 21,300 | Put | Sole | 2024-11-14 | |
| 2024-06-30 | $518,811 | 59,225 | Shares | Sole | 2024-08-14 | |
| 2024-06-30 | $573,780 | 65,500 | Put | Sole | 2024-08-14 | |
| 2024-03-31 | $82,518 | 10,200 | Call | Sole | 2024-05-15 | |
| 2024-03-31 | $194,038 | 23,985 | Shares | Sole | 2024-05-15 | |
| 2024-03-31 | $516,142 | 63,800 | Put | Sole | 2024-05-15 | |
| 2023-12-31 | $476,298 | 56,300 | Put | Sole | 2024-02-14 | |
| 2023-09-30 | $1,226,322 | 173,700 | Call | Sole | 2023-11-21 | |
| 2023-09-30 | $47,302 | 6,700 | Put | Sole | 2023-11-21 | |
| 2023-06-30 | $291,930 | 37,000 | Put | Sole | 2023-08-14 | |
| 2023-06-30 | $1,184,289 | 150,100 | Call | Sole | 2023-08-14 | |
| 2023-03-31 | $2,540,400 | 290,000 | Call | Sole | 2023-05-15 | |
| 2023-03-31 | $196,224 | 22,400 | Put | Sole | 2023-05-15 | |
| 2022-12-31 | $2,612 | 400 | Put | Sole | 2023-02-14 | |
| 2022-12-31 | $2,775,903 | 425,100 | Call | Sole | 2023-02-14 | |
| 2022-09-30 | $2,787,785 | 500,500 | Call | Sole | 2022-11-14 | |
| 2022-09-30 | $4,177,500 | 750,000 | Put | Sole | 2022-11-14 | |
| 2022-06-30 | $4,910,281 | 725,300 | Put | Sole | 2022-08-08 | |
| 2022-06-30 | $1,354 | 200 | Call | Sole | 2022-08-08 | |
| 2022-03-31 | $1,918,848 | 210,400 | Put | Sole | 2022-05-16 | |
| 2022-03-31 | $1,435,488 | 157,400 | Call | Sole | 2022-05-16 | |
| No filing history on record for this holder in this stock. | ||||||