Despite the sharp decline of US stock ADRs, United Microelectronics' stock price rose more than 4% against the trend

Today, United Microelectronics Corporation (2303) opened at 54.4 yuan in the morning and immediately fluctuated upwards, reaching a high of 56.5 yuan during the session. It closed at 55.1 yuan, up 2.3 yuan, with a daily increase of 4.36%. In terms of trading volume, today's volume significantly increased, surpassing 300,000 shares. This indicates that after the high-level fluctuations and explosive volume washout yesterday (the 8th), the bulls have regained market dominance and successfully recovered previously lost ground. It is noteworthy that although the U.S. stock market saw United Microelectronics ADR drop by 4.26% last night, which initially created psychological pressure on the Taiwan stock market before trading, the parent stock rose after opening today, reflecting strong buying power from domestic investors and institutions, which has absorbed the negative impact brought by the ADR. United Microelectronics Corporation (2303) stock price data today Indicator Today's Data (2026/01/09) Closing Price 55.1 Change +4.36% (+2.30) Highest/Lowest Price 56.5 / 53.6 Trading Volume 308,105 shares Trading Amount Approximately 17.007 billion United Microelectronics Corporation's stock price shows strong momentum this week, mainly benefiting from the following four core driving factors Full recovery of mature process demand: Market data indicates that the capacity utilization rate of wafer foundry mature processes has significantly rebounded since early 2026. Benefiting from the end of inventory destocking for automotive and industrial control chips, along with a surge in urgent orders recently, United Microelectronics holds a positive outlook for operational recovery growth throughout 2026, successfully driving the market to reassess its value. Revenue reaches second-highest historical level: According to the latest published data, United Microelectronics' consolidated revenue for the entire year of 2025 reached 237.553 billion yuan, a year-on-year increase of 2.26%, setting a new second-highest historical record. Notably, the revenue performance in December last year was robust and exceeded expectations, laying a solid foundation for the "red envelope market" in 2026. Silicon photonics (CPO) and new technology themes: United Microelectronics has recently been actively laying out silicon photonics technology and expanding next-generation connectivity technology through licensing related capabilities. This has allowed United Microelectronics, traditionally positioned as a mature process foundry, to successfully ride the wave of AI edge computing and high-performance computing (HPC), attracting a large influx of thematic funds. Low price-to-earnings ratio triggers relative valuation effect: As TSMC's stock price continues to hit new highs, market funds have begun to flow towards low-base, low price-to-earnings ratio blue-chip stocks. United Microelectronics currently has a price-to-earnings ratio of only about 17 times, with an expected high dividend yield of over 5%, providing excellent defensiveness and room for catch-up for institutional funds. United Microelectronics' short-term increase has been rapid; analysts warn of the risk of chasing high prices and focus on whether the 52 yuan support can hold steady From a technical perspective, United Microelectronics has seen record trading volumes this week, indicating extremely vigorous market turnover. Although the trend of recovery in mature processes is already clear, the rapid increase in stock price over just a few days has significantly increased the profit-taking pressure from short-term investors and institutional investors Analysts remind that 52 yuan is currently the most important key support line. If the stock price can stabilize here, it will have the momentum to further challenge the previous high; conversely, if it breaks this support, extra caution should be taken regarding the risk of chasing high prices. Investors should pay attention to the following recently: The volatility of US stock ADRs, which will directly affect the pre-market performance of the Taiwanese stocks. The competitive pressure on pricing for mature processes remains a long-term uncertainty, and it is necessary to continuously observe whether profitability is impaired. If the stock price cannot effectively break through the recent high of 58.4 yuan in the short term, precautions should be taken against the risk of entering a high-level consolidation or even a pullback