On June 4, United Microelectronics (UMC) fell 5.14% in regular trading, trading at $20.335/share, with trading volume of $63.86 million, extending its multi-day correction.

On the news front, UMC's TTM price-to-earnings ratio stands at approximately 35.5x, far exceeding its five-year median of 11.8x, with significant year-to-date cumulative gains amplifying valuation reversion pressure. Meanwhile, the broader semiconductor sector experienced a sharp sell-off, with Broadcom plunging 15.23%, Micron Technology falling 7.75%, Advanced Micro Devices declining 6.41%, and Marvell Technology dropping 5.23%, creating substantial sector-wide drag.

Although UMC previously reported Q1 net profit surging 108% year-over-year to NT$16.17 billion, with gross margin reaching 29.2% and capacity utilization improving to 79%, and announced selective price hikes of approximately 10% for the second half, the high valuation accumulated from rapid prior appreciation remains the dominant market concern, triggering sustained profit-taking amid deteriorating sector sentiment.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)