EquitiesInvestors push company's value above 30tn yen threshold, or $188bnNAND flash memory chips made by Kioxia. AI-related stocks rose on May 20 after American chip company Nvidia announced strong earnings. (Kioxia)KYOHEI SUGAMay 22, 2026 00:08 JSTTOKYO -- The market capitalization of Kioxia Holdings on Thursday surpassed 30 trillion yen ($188 billion) for the first time here as investors snapped up the shares on expectations of growing demand for memory chips.Read NextCompaniesJapan firms on track for record profits despite Iran headwindsSemiconductorsJapan's Kioxia forecasts 48-fold quarterly profit jump on AI demandMarketsKioxia's rising shares signal Japan market shift from autos to chipsSupply ChainMemory crunch to persist as oversupply risks remain low: Phison CEOSemiconductorsMemory shortage set to run until 2027 as chipmakers focus on AIBusiness dealsJapan's Kioxia invests $490m in Taiwanese DRAM supplier NanyaAnnouncementsKioxia and Pan Pacific International to join Nikkei 225Latest on EquitiesEquitiesTokyo Stock Exchange Prime market doubles daily trading value over a yearEquitiesCarlyle sees more investment opportunities in Japan: CEO Harvey SchwartzEquitiesSingapore's small-cap stocks soar, defying Middle East worries