Why is Resonac stock surging today?

Resonac Holdings stock surged nearly 15% to ¥14,450 on Thursday after the company reported a dramatic acceleration in third-quarter earnings and raised its full-year profit forecast, with the primary engine being surging demand for advanced semiconductor packaging and electronic materials tied to artificial intelligence.

Nine-month core operating profit more than doubled year-over-year, rising 136% to ¥164.1 billion, while revenue climbed 14% to ¥871.9 billion, and net profit attributable to parent shareholders soared to ¥94.6 billion from just ¥6 billion in the same period a year earlier.

The company’s Semiconductor & Electronic Materials segment was the standout performer, with Q3 core operating profit climbing 62% quarter-on-quarter to ¥77.1 billion and segment operating margin expanding sharply to 24.4% from 17.5% in Q2. Back-end semiconductor materials — the key growth driver — posted sales growth of 56%, fueled by demand for advanced chips used in AI applications.

Resonac also announced the formal sale of its graphite electrode operations in Japan, the Americas, and Europe to private equity firm Aurelius, a move that, despite booking a roughly ¥105 billion non-recurring loss already embedded in guidance, signals a decisive pivot toward becoming a focused semiconductor materials pure-play.

The broader market environment added a constructive tailwind, with the Nikkei 225 rising approximately 0.4% on the day — its fourth consecutive session of gains — as technology and AI-adjacent stocks continued to recover from a recent pullback.