United Microelectronics Corporation (UMC) saw its stock surge 6.60% during pre-market trading on Wednesday, following the release of its first-quarter financial results.

The company reported significant year-over-year growth, with earnings per share reaching $0.20, a 122% increase from $0.09 in the same period last year. Quarterly sales also rose to $1.93 billion, marking a 10.7% increase. The results notably exceeded analyst expectations.

In its earnings statement, UMC expressed confidence in resilient market demand going forward and announced plans to implement a wafer price adjustment in the second half of 2026. The company's CEO cited strong wafer shipments supported by a rebound in the communications segment and healthy demand across other markets.