On June 2, United Microelectronics (UMC) fell 3.3% in regular trading, trading at $21.995/share, with trading volume of $30.89 million.

The decline comes as UMC's current TTM price-to-earnings ratio has surged to 36.7x, far exceeding its five-year median of 11.8x. With significant year-to-date cumulative gains, valuation pullback pressure has become the market's primary focus. Meanwhile, the broader semiconductor sector saw selective weakness, with Intel declining 1.91% and Micron Technology falling 0.48%, reflecting subdued sector sentiment.

Despite the company's previously reported Q1 net profit surging 108% year-over-year to NT$16.17 billion, with gross margin reaching 29.2% and capacity utilization rising to 79%, as well as its announced plan for selective price hikes of approximately 10% in the second half and broader pricing negotiations in 2027, the high valuation risk accumulated from the prior rapid share price appreciation has become the dominant concern, outweighing positive fundamental catalysts.

(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.)