United Microelectronics Corporation (UMC) saw its stock price surge 5.84% during the night session, continuing its positive momentum.

The sharp rise follows the company's standout first-quarter earnings report, which revealed a net profit surge of 108% year-over-year, significantly exceeding market expectations. Management's guidance for an additional 5% to 7% price increase in the second quarter, expected to push gross margin above 30%, has provided sustained bullish momentum for the stock.

The combination of robust financial performance and a positive pricing trend in the mature-node segment continues to fuel investor confidence, driving the stock higher across multiple trading sessions since the earnings release.