Kioxia stock outpaces Micron, Sandisk and SK Hynix

Kioxia’s share price has risen 847% year-to-date and about 4,780% over the past 12 months, taking the company’s market value to roughly $370 billion and making it the largest company by market capitalization in Japan.

The rally is linked to stronger demand for NAND memory driven by increased investment in artificial intelligence. Kioxia supplies products to major technology customers, including Microsoft, Apple, Dell and HP, and holds about 25% of the global NAND market. Company officials report operations are at full capacity and say several large cloud customers have requested long-term supply contracts.

For the most recent fiscal year Kioxia reported revenue above 1 trillion yen, operating profit of 599.1 billion yen, free cash flow over 241 billion yen and more than 470 billion yen in cash at year end. The company raised its guidance, forecasting first-quarter revenue of 1.75 trillion yen, a 74% increase, and net income of 870 billion yen, a projected 112% rise.

Kioxia’s gains exceed those of several peers. SanDisk’s shares have risen about 4,755% over 12 months and 795% this year. Micron is up roughly 285% year-to-date and has reached a market value near $1 trillion. South Korea’s SK Hynix has advanced more than 358% this year.

Technical indicators show the stock’s Relative Strength Index around 75 and the price trading above short- and long-term moving averages, readings typically associated with overbought conditions.

Analysts note risks that could affect the trend. They cite the possibility of slower AI-driven demand if cloud providers reduce capital spending, the chance that memory supply could increase and push prices down, and the challenge of expanding production while avoiding oversupply in the NAND market.

Kioxia listed publicly in 2024 at a valuation below $5 billion after several years of restructuring and a reported government rescue of about $1 billion. Market participants are monitoring whether the company can maintain high margins while increasing output to meet customer orders.