Kioxia's Meteoric Rise Reverses as „30 Trillion Wiped Out in Historic Selloff
Published on 07/17/2026 at 18:33 | Redaktion boerse-global.de
The NAND flash memory maker that briefly dethroned Toyota as Japan's most valuable company has now surrendered more than half its market capitalization in a brutal 30-day rout. Kioxia's shares closed at âŹ285.05 on Friday, shedding 6.56% in a single session and pushing the weekly loss to 33.17%. Since hitting a 52-week peak of âŹ621.00 on June 22, the stock has plummeted roughly 51%, erasing approximately „30 trillion ($185 billion) in shareholder value.
Just weeks ago, Kioxia had soared more than 600% year-to-date, propelled by insatiable demand for AI-driven memory chips. That euphoria has evaporated amid forced liquidations, a strategic exit by private equity giant Bain Capital, and a broad reassessment of the semiconductor sector.
A Cascade of Selling Pressure
The latest leg of the selloff has been amplified by margin calls across Asia. Market sources report that over 1.2 million trading accounts in Asian markets faced margin calls or forced liquidations this week, with many retail investorsâcolloquially dubbed "the ants"âhaving piled into heavily leveraged positions during the rally. As prices tumbled, these positions unwound in a self-reinforcing cycle.
Compounding the pressure, Bain Capital fully exited its Kioxia stake last week. Many institutional investors interpret the move as a signal that the memory-chip cycle may have peaked, triggering further selling from those following the private equity firm's lead.
Should investors sell immediately? Or is it worth buying Kioxia?
Kioxia now ranks as Japan's fifth-largest company by market value, down from first place. Over the past seven sessions alone, the stock has lost 33.17% of its worth, and it currently trades nearly 30% below its 50-day moving average of âŹ405.16âa stark gauge of how quickly sentiment has soured.
Chip Sector in a Tailspin
Kioxia's woes are not isolated. Japan's Nikkei 225 slid as much as 4.4% on Friday to 63,896 points, with chip-equipment maker Advantest and influential investor SoftBank each dropping roughly 9%. In Taiwan, the Taiex index fell 4%, and TSMCâdespite reporting a record quarterly profitâlost more than 3%.
The broader semiconductor industry is undergoing a correction driven by multiple headwinds: TSMC's announcement that it will boost 2026 capital expenditure to as much as $64 billion has stoked fears of a global capacity glut; institutional investors are rotating out of high-flying tech names to lock in first-half gains; and valuation concerns persist. While many analysts maintain "buy" ratings on Kioxia, Bernstein holds a "sell" recommendation, arguing that premium valuation multiples have overshot historical earnings patterns.
Technical Signals and Future Catalysts
Kioxia's relative strength index (RSI) now stands at 37.7, approaching oversold territory. Despite the carnage, sell-side consensus still implies roughly 118% upside over the next 12 months. Two events could shape the stock's trajectory.
Kioxia at a turning point? This analysis reveals what investors need to know now.
On July 31, Kioxia is due to report fiscal first-quarter results for fiscal 2027. Investors will scrutinize whether memory-chip demand is stabilizing after one of the steepest monthly declines in recent chip-market history.
More structurally, the Japan Exchange Group plans to raise Kioxia's free-float weighting from 15% to 50% during the regular Topix rebalancing in October. According to SMBC Nikko Securities, this change could more than triple the stock's index weight, forcing passive funds to buy roughly „3 trillion ($18.5 billion) of Kioxia shares. That potential inflow offers a ray of hope for a company that, in the span of a month, has fallen from its throne to the edge of the bargain bin.
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Kioxia Stock: New Analysis - 17 July
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