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Kioxia Shares Slide 9% as AI Rally Cools on Weak Guidance and Chinese Competition

Kioxia Shares Slide 9% as AI Rally Cools on Weak Guidance and Chinese Competition

as in original. Also the meta description. Let's translate step by step. Original content:

Kioxia Holdings, the Japanese memory-chip maker that rode an AI-driven surge to become the country's most valuable listed company earlier this year, saw its stock tumble nearly 9% on the day. The drop comes after a dizzying 2,000% gain over the past twelve months—nearly four times the return of Japan's next-best performer, AIMECHATEC—and follows a volatile stretch that has erased roughly 65% of the company's value from its June peak.

Translation: "Kioxia Holdings, den japanske producent af hukommelseschips, der red på en AI-drevet bølge og blev landets mest værdifulde børsnoterede selskab tidligere på året, så sin aktie falde næsten 9 % på dagen. Faldet kommer efter en svimlende gevinst på 2.000 % over de seneste tolv måneder – næsten fire gange afkastet for Japans næstbedste performer, AIMECHATEC – og følger efter en volatil periode, der har udslettet omkring 65 % af selskabets værdi fra toppen i juni." We need to be careful with numbers: 2,000% -> 2.000 % in Danish (using period as thousands separator? Actually Danish uses . for thousands and , for decimal. So 2,000% becomes 2.000 %. And 9% -> 9 %. 65% -> 65 %. Also ¥112,700 -> ¥112.700. We'll adjust. Next paragraph:

The AI-fueled rally hits a wall

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Det AI-drevne rally rammer en mur

Then:

Kioxia's meteoric rise was built on demand for NAND flash memory used in data centers, phones, and servers. The stock more than quintupled in 2025 alone, briefly making it Japan's most valuable listed company by market capitalization. But momentum cracked in late July after the company issued a forecast for fiscal half-year operating income of ¥3.16 trillion ($19.7 billion). Analysts read the numbers closely: the implied ¥1.89 trillion for the current quarter was weaker than expected, following a prior quarter of ¥1.27 trillion that itself missed analyst estimates.

Translation: "Kioxias meteoriske stigning var bygget på efterspørgslen efter NAND-flashhukommelse, der bruges i datacentre, telefoner og servere. Aktien mere end femdobledes i 2025 alene og blev kortvarigt Japans mest værdifulde børsnoterede selskab målt på markedsværdi. Men momentum knækkede i slutningen af juli, efter at selskabet udsendte en prognose for driftsresultatet for første halvår på ¥3,16 billioner (19,7 milliarder dollars). Analytikerne læste tallene nøje: de implicerede ¥1,89 billioner for det aktuelle kvartal var svagere end forventet, efter et tidligere kvartal på ¥1,27 billioner, som i sig selv skuffede analytikernes forventninger." Note: In Danish, "trillion" is "billion" (short scale) but careful: In English, "trillion" is 10^12, in Danish "billion" is 10^12? Actually Danish uses "billion" for 10^12, and "milliard" for 10^9. So ¥3.16 trillion is 3.16 billioner (since 1 trillion = 1 billion in Danish). But we have "¥3.16 trillion" which is 3,160,000,000,000 yen. In Danish, that is 3,16 billioner. But we also have "$19.7 billion" which is 19.7 milliarder (since billion in English is 10^9, in Danish that's milliard). So we need to be careful: "¥3.16 trillion" -> "¥3,16 billioner" (since trillion in English = billion in Danish). And "$19.7 billion" -> "19,7 milliarder dollars". Also "¥1.89 trillion" -> "¥1,89 billioner", "¥1.27 trillion" -> "¥1,27 billioner". We'll use comma as decimal separator and period as thousands separator. So we'll write "3,16 billioner" etc. Next:

A guidance that cooled the rally

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En prognose, der kølede rallyet af

Then:

The forecast signaled that the blistering pace of growth might be slowing. Shares had already fallen roughly 65% from their June peak of ¥112,700 by the time the guidance was released. The latest 9% drop extends that retreat. The company also announced a three-for-one stock split and an ¥800 billion buyback, moves aimed at broadening its shareholder base and signaling confidence. But the market focused on the softer outlook.

Translation: "Prognosen signalerede, at den voldsomme væksttakt måske var ved at aftage. Aktierne var allerede faldet omkring 65 % fra deres juni-top på ¥112.700, da prognosen blev offentliggjort. Det seneste fald på 9 % forlænger tilbagetrækningen. Selskabet annoncerede også en aktiesplit i forholdet 3:1 og et tilbagekøb på ¥800 milliarder, tiltag der havde til formål at udbrede aktionærkredsen og signalere tillid. Men markedet fokuserede på de svagere udsigter." Note: "three-for-one stock split" -> "aktiesplit i forholdet 3:1" or "en aktiesplit på tre for én". I'll use "en aktiesplit i forholdet 3:1". "¥800 billion" -> "¥800 milliarder" (since billion in English is milliard in Danish). Actually 800 billion yen = 800 milliarder yen. Next:

Stock split and buyback fail to stem the slide

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Aktiesplit og tilbagekøb formår ikke at standse faldet

Then:

The buyback and split are designed to make shares more accessible to retail investors, but they haven't stopped the selloff. A broader AI-stock rout is weighing on the sector, and Chinese NAND manufacturers are ramping up capacity, threatening Kioxia's pricing power. The stock's recent volatility has been extreme: it gained more than 40% in a five-day stretch, then reversed sharply.

Translation: "Tilbagekøbet og splittet er designet til at gøre aktierne mere tilgængelige for private investorer, men de har ikke stoppet salget. En bredere nedtur i AI-aktier tynger sektoren, og kinesiske NAND-producenter øger kapaciteten, hvilket truer Kioxias prisfastsættelsesevne. Aktiens seneste volatilitet har været ekstrem: den steg mere end 40 % over en femdages periode og vendte derefter kraftigt." Next:

Analyst divide and competitive threats

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Analytikere er uenige, og kon