Advantest Corp. (TYO:6857) shares surged to a record high on Thursday after the Japanese semiconductor testing equipment maker posted strong fiscal third-quarter earnings and raised its full-year guidance, driven by robust artificial intelligence-related demand. As a key supplier of semiconductor testing equipment to Nvidia, Advantest has been well positioned to capitalize on rising demand for advanced chips used in AI data centers, high-performance computing, and next-generation technologies. For the three months ended December 31, Advantest reported record-high quarterly profit of 78.7 billion yen (approximately $510 million), reflecting strong order momentum from major chipmakers. Advantest now expects full-year sales to reach 1.07 trillion yen, up from its previous forecast of 950 billion yen. Net income is projected to more than double from the prior year to 328.5 billion yen, compared with an earlier estimate of 275 billion yen.