Kioxia Shares Surge 19% as Mass Production of Next-Gen NAND Fuels AI Ambitions
Published on 07/04/2026 at 18:07 | Redaktion boerse-global.de
The 18.77% jump in Kioxia's Frankfurt-listed shares on Friday to €465.00 brought the stock within striking distance of its 52-week high, as investors cheered the start of mass production for the company's 10th-generation 3D NAND flash memory. The move came a day before the official announcement of volume manufacturing at the Kitakami Fab2 facility in Japan's Iwate prefecture, with the shares now trading just 10.56% below the record of €519.90 set on June 30, 2026.
The new chips, developed jointly with US partner SanDisk under a partnership extended through December 2034, represent a significant leap in performance. Built around a Circuit Bonded on Array architecture, each die packs 512 gigabits of storage while slashing power consumption by 40% compared to the previous generation. An 18-nanosecond read latency — specifically engineered for the mind-numbing data demands of AI data centers — gives Kioxia a technical edge that analysts say American hyperscalers are hungry for. Omdia's Akira Minamikawa has highlighted the superior data processing speed of Kioxia's chips, a gap the new generation widens further.
Yet for all the enthusiasm, the Japanese memory maker is still a distant third in the data center storage market. Samsung commands a 40% share, SK Hynix holds 30%, and Kioxia lags at 10%. The company is determined to change that. Samples of its latest flash are already being shipped to AI data centers, and management sees this as a beachhead to shift away from heavy reliance on smartphones and customers like Apple. CEO Hiroo Ota has laid out a vision that extends well beyond today's AI boom, pointing to future growth from autonomous robots and AI agents as natural end markets for Kioxia's high-speed, low-power NAND.
Should investors sell immediately? Or is it worth buying Kioxia?
The production ramp at Kitakami is ambitious: Kioxia aims to hit 10 million wafers per month by the fourth quarter of 2026. Currently, the fab — which came online in September 2025 — has leapfrogged from the 8th to the 10th BiCS generation, skipping an entire cycle in the process. Full-scale mass production of the new chips for AI workloads is targeted for 2027, meaning today's sample shipments generate negligible revenue. The real test, investors know, will come when those volumes translate into cash flow.
The financial projections are already on the table. For the current fiscal year, Kioxia expects revenue of ¥4.5 trillion, EBITA of ¥920 billion, and earnings per share of ¥21.7. The market capitalization has swelled to roughly ¥45.5 trillion, making it the most valuable company in Japan — a stunning ascent for a former Toshiba division that only went public in Tokyo at the end of 2024. Since the start of the year, the stock has exploded more than 680%, a pace that has left technical indicators screaming. The annualized volatility stands at 162%, and the share price is now 91.2% above its 50-day moving average of €243.20. The 14-day relative strength index sits at 65.5 — still in bullish territory but not yet overheated.
Kioxia's rally comes as Japan's entire semiconductor sector gains momentum. On the same day, rival Micron broke ground on a ¥1.5 trillion expansion of its Hiroshima plant, backed by government subsidies of up to ¥536 billion. Market observers speak of a super-cycle forming in memory, driven by inference-stage AI demand that is expected to expand the market at a 7.3% compound annual rate through 2029. Kioxia is positioning itself to grab a share of that growth, targeting a revenue mix of more than 60% from data-center chips by 2028.
The next critical milestone arrives at the end of July, when Kioxia reports first-quarter earnings. Management has promised a massive profit jump, and the market will be watching to see whether the heavy investment in new capacity is already generating the cash needed to justify a valuation that has outpaced even the most bullish projections. Until then, the ramp at Kitakami — and the question of whether monthly output can actually reach 10 million wafers by late 2026 — remains the single most important factor for a stock that has already rewritten the rules of Japanese corporate valuations.
Ad
Kioxia Stock: New Analysis - 4 July
Fresh Kioxia information released. What's the impact for investors? Our latest independent report examines recent figures and market trends.
Disclaimer regarding our articles: No investment advice, no buy or sell recommendation. Information on prices, companies, and markets is provided without guarantee; changes are possible at any time. Stock market transactions can lead to substantial losses. Our articles are created and reviewed in whole or in part automatically with the support of AI.
