Why is Kioxia stock price hitting record highs?

Investors see stronger AI memory demand and rising NAND prices, which support margins and cash flow. Liquidity is also high, with trading value leading the TSE Prime. The extended SanDisk joint venture adds long-term visibility for supply and capex, reinforcing confidence in Kioxia Holdings.

What does the SanDisk joint venture extension change?

The Yokkaichi JV now runs through 2034 with a US$1.165 billion consideration tied to the deal. It supports shared capex, scale, and coordinated product roadmaps. This can lower unit costs, improve supply reliability, and strengthen Kioxia’s position in premium enterprise SSDs tied to AI demand.

How does AI memory demand impact Kioxia’s earnings?

AI servers use higher-capacity SSDs and faster interfaces, lifting NAND content per system. If average selling prices and enterprise mix remain firm, gross margins can expand. That operating leverage can translate into better cash flow, which is a key factor supporting Kioxia stock price today.

What risks could pressure Kioxia stock price from here?

A slowdown in AI server deployments, aggressive peer supply, or a weaker enterprise SSD mix could cap pricing. Policy limits on equipment, yen swings, and delays in customer qualifications also pose risks. Any shift in these factors can quickly change sentiment and valuation multiples.

Global Market Insights

Kioxia Stock Today, February 3: Record Highs on AI Memory, SanDisk JV to 2034

ByDanny Kontos February 3, 2026February 3, 2026

Kioxia stock price surged to fresh record highs in Tokyo today, supported by strong AI memory demand and firmer NAND pricing. Investors focused on supply scale after Kioxia Holdings and SanDisk extended their Yokkaichi joint venture to 2034, with a US$1.165 billion consideration. Trading value continued to lead the TSE Prime as market cap moved above ¥11 trillion. We explain what is driving momentum, why the JV matters, and the key signals to watch for Japan investors.