SICC's stock surged 8.73% during the intraday session, driven by a combination of improved financial performance and robust demand for its silicon carbide (SiC) substrates from the high-performance computing sector.

The company recently reported first-quarter results showing a significant turnaround in profitability, with gross margin jumping to 19.12% from negative territory in the previous quarter. This earnings inflection point is a key factor behind the stock's strength.

Furthermore, industry momentum is providing a tailwind. Downstream player Ibiden raised its guidance for the packaging substrate business, which ultimately uses SICC's products in AI data centers and other computing applications. SICC holds a leading global market share in conductive SiC substrates, particularly in the 8-inch segment, and its full-year output has grown substantially year-over-year.