United Microelectronics (New) (UMC) closed at $16.08 on November 11, 2026, up 6.9% from the previous close, on volume of 12,557,204 shares (30-day average 12,629,645).
Data as of November 11, 2026.
| # | Date | Strategy | Legs | Contracts |
|---|---|---|---|---|
| 1 | Nov 11, 2026 | Diagonal Double Call Spread | 20-Nov-2623 : 26 C|18-Dec-2617 : 19 C | 111,824 |
| 2-3 | The next 2 largest trades are for Premium members. Start a 7-day free trial | |||
Ranked by contracts: multi-leg trades of 200 or more contracts on one day, through Nov 11, 2026. See the 10 largest for 30, 60 and 90 days
UMC Reports Software and IP Acquisition and Capital Reduction Registration
TipRanks (Thu, 12-Nov 8:53 AM ET)
UMC’s October sales rose 18.33% year over year, extending 2026 momentum
Market Chameleon (Thu, 5-Nov 2:11 AM ET)
UMC Reports Sales for October 2026
Business Wire (Thu, 5-Nov 2:30 AM ET)
UMC Reports Third Quarter 2026 Results
Business Wire (Wed, 28-Oct 7:35 AM ET)
Market Chameleon (Thu, 22-Oct 3:10 AM ET)
UMC and AP Memory Collaborate to Enable Advanced Power Delivery Solutions for AI and HPC Systems
PRNewswire (Thu, 22-Oct 2:00 AM ET)
UMC Posts 27.22% Year-Over-Year September Sales Growth as 2026 Revenue Momentum Builds
Market Chameleon (Tue, 6-Oct 3:10 AM ET)
UMC Reports Sales for September 2026
Business Wire (Tue, 6-Oct 3:30 AM ET)
UMC Reports Sales for August 2026
Business Wire (Fri, 4-Sep 2:30 AM ET)
Founded in 1980, United Microelectronics is the world's third-largest dedicated chip foundry, with close to 5% market share in 2025 after TSMC and SMIC. UMC's headquarters are in Hsinchu, Taiwan, and it operates 12 fabs in Taiwan, mainland China, Japan and Singapore, with additional sales offices in Europe, the US, and South Korea. UMC features a diverse customer base that includes Texas Instruments, MediaTek, Intel, Broadcom, Novatek, and Realtek, supplying a wide range of products applied in communications, display, memory, automotive and more. UMC employs 19,095 people as of February 2026.
United Microelectronics (New) trades on the NYSE stock market under the symbol UMC.
As of November 12, 2026, UMC stock price declined to $15.78 with 5,927,045 million shares trading.
UMC has a beta of 2.40, meaning it tends to be more sensitive to market movements. UMC has a correlation of 0.23 to the broad based SPY ETF.
UMC has a market cap of $39.60 billion. This is considered a Large Cap stock.
Last quarter United Microelectronics (New) reported $2 billion in Revenue and $.21 earnings per share. This fell short of revenue expectation by $-30 million and missed earnings estimates by -$.02.
In the last 3 years, UMC traded as high as $28.96 and as low as $5.61.
The top ETF exchange traded funds that UMC belongs to (by Net Assets): SOXX, VWO, SPEM, SOXL, VEU.
UMC has outperformed the market in the last year with a return of +119.4%, while the SPY ETF gained +12.1%. However, in the most recent history, UMC shares have underperformed the stock market with its stock returning -16.7% in the last 3 month period and -16.2% for the last 2 week period, while SPY has returned -1.4% and -1.9%, respectively.
UMC support price is $15.38 and resistance is $16.78 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that UMC shares will trade within this expected range on the day.
