Shares of Ibiden plummeted 14% on Wednesday after the company reported disappointing third-quarter results. Revenue and operating profit fell short of market expectations, leading Morgan Stanley to downgrade the stock to Underweight. The firm cited weaker momentum in electronics and ongoing raw material constraints as key concerns impacting the company's performance.

This negative reaction comes after Ibiden's stock experienced a surge, increasing nearly 500% from April 2025 to January 2026, fueled by strong AI demand. The company's revised outlook for the fiscal year ending March 2026 remained unchanged, but adjustments to segment forecasts, including a lowered electronics projection, contributed to investor unease.

Despite the near-term challenges, analysts like Macquarie's Hiroshi Taguchi see continued strength in AI server demand. He anticipates increased sales from next-generation AI GPUs and ASICs in the coming years, supported by investment in advanced packaging capacity. These differing perspectives highlight the complex dynamics within the semiconductor industry.

The downgrade and stock drop reflect the market's sensitivity to earnings disappointments, particularly in the fast-evolving AI sector. Investors will be closely watching Ibiden's ability to navigate raw material issues and capitalize on long-term AI-driven demand. The company's future hinges on its ability to execute on its strategic initiatives.