Kioxia Shares Rise 4.2% Following Micron's Earnings Forecast

Kioxia shares rose 4.2% to ¥18,850 on Thursday, tracking a rally in the semiconductor sector after strong quarterly results from U.S. memory chipmaker Micron Technology. These gains reflect investor confidence in the memory market following optimistic forecasts for long-term chip demand.

Micron reported fiscal fourth-quarter earnings that surpassed analyst expectations and issued guidance for the current quarter that topped consensus estimates. These results lifted chip-related equities globally, as the market reacted to Micron's commentary on the role of artificial intelligence in driving hardware requirements.

The AI-Driven Demand Forecast

Micron provided an outlook for the memory industry, stating that AI-fueled demand should remain high for years. The company projected that global supplies for critical memory components will likely remain tight until at least 2028. This timeline suggests a period of high pricing power for manufacturers.

This sentiment influenced Japanese equity markets. The surge in Kioxia and other domestic chipmaking stocks contributed to a gain of over 2% for the Nikkei 225 index during Thursday's trading session.

Why Industry Sentiment Matters

In the semiconductor industry, companies like Kioxia and Micron move in tandem because they share exposure to similar end-markets, such as data centers and consumer electronics. When a major player like Micron reports better-than-expected performance, it signals to investors that the underlying supply-demand dynamics are healthier than previously feared.

For participants in the memory market, the primary concern remains whether current production capacity can keep pace with the adoption of AI infrastructure. Micron’s guidance suggests that the sector is in a phase where demand is structurally outpacing supply, providing a benefit for manufacturers across the global supply chain.