as in original. Ensure numbers and facts accurate. 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, el fabricante japonés de chips de memoria que aprovechó un auge impulsado por la IA para convertirse en la empresa cotizada más valiosa del país a principios de este año, vio caer sus acciones casi un 9% en el día. La caída se produce después de una vertiginosa ganancia del 2.000% en los últimos doce meses—casi cuatro veces el rendimiento del siguiente mejor valor de Japón, AIMECHATEC—y sigue a un período volátil que ha borrado aproximadamente el 65% del valor de la empresa desde su máximo de junio.
The AI-fueled rally hits a wall
->El repunte impulsado por la IA choca con un muro
Next paragraph: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:El ascenso meteórico de Kioxia se basó en la demanda de memoria flash NAND utilizada en centros de datos, teléfonos y servidores. La acción se quintuplicó con creces solo en 2025, convirtiéndose brevemente en la empresa cotizada más valiosa de Japón por capitalización de mercado. Pero el impulso se quebró a finales de julio después de que la empresa emitiera un pronóstico de ingresos operativos de ¥3,16 billones ($19,7 mil millones) para el primer semestre fiscal. Los analistas examinaron de cerca las cifras: los ¥1,89 billones implícitos para el trimestre actual fueron más débiles de lo esperado, después de un trimestre anterior de ¥1,27 billones que también incumplió las estimaciones de los analistas.
Note: Use "billones" for trillion? In Spanish, "billón" is a million million (10^12) in most Spanish-speaking countries, but in some contexts, they use "trillón" for 10^12? Actually, in Spanish, "billón" is 10^12, and "trillón" is 10^18. So ¥3.16 trillion is 3.16 billones in Spanish. But careful: In English, trillion is 10^12, so Spanish "billón" is correct. However, in some Latin American countries, they might use "billón" for 10^9? No, that's "millardo" or "mil millones". So we'll use "billones" for trillion. Also, for $19.7 billion, that's 19.7 mil millones? Actually, "billion" in English is 10^9, which in Spanish is "mil millones" or "billón" in some countries? In Spain, "billón" is 10^12, so "billion" is "mil millones". So we need to be consistent. The original says "$19.7 billion" - that's 19.7 billion US dollars, which is 19.7 mil millones. But we can also say "19.7 mil millones de dólares". For ¥3.16 trillion, that's 3.16 billones de yenes. So we'll use "billones" for trillion and "mil millones" for billion. But in the text, we have "¥3.16 trillion" and "$19.7 billion". So we'll translate as "¥3,16 billones (19,7 mil millones de dólares)". Also, note the decimal comma in Spanish: use comma for decimals, and period for thousands? Actually, in Spanish, decimals are comma, thousands are period. So we'll write "3,16 billones" and "19,7 mil millones". But we need to be careful with the original numbers: they use periods for decimals? Actually, original uses "¥3.16 trillion" - that's 3.16 with a period as decimal. In Spanish, we use comma. So we'll convert to "3,16 billones". Similarly, "¥1.89 trillion" -> "1,89 billones", "¥1.27 trillion" -> "1,27 billones". Also, "¥112,700" - that's a number with comma as thousands separator? Actually, in English, they use comma for thousands, so ¥112,700 is 112,700 yen. In Spanish, we use period for thousands, so we'd write "112.700 yenes". But we need to keep the currency symbol. We'll write "¥112.700". Also, "¥800 billion" - that's 800 billion yen, which is 800 mil millones de yenes? Actually, billion is 10^9, so 800 billion = 800 mil millones. But in Spanish, we might say "800.000 millones" or "800 mil millones". We'll use "800 mil millones de yenes". But careful: In the original, it says "an ¥800 billion buyback" - so we'll translate as "una recompra de 800 mil millones de yenes". Also, "¥3.16 trillion" is 3.16 billones, which is 3,160,000 million? Actually, 1 trillion = 1,000 billion, so 3.16 trillion = 3,160 billion. But we'll use "billones" for trillion. Let's proceed with the translation. Next h2:A guidance that cooled the rally
->Una previsión que enfrió el repunte
Paragraph: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:La previsión indicó que el ritmo vertiginoso de crecimiento podría estar desacelerándose. Las acciones ya habían caído aproximadamente un 65% desde su máximo de junio de ¥112.700 cuando se publicó la guía. La última caída del 9% amplía ese retroceso. La empresa también anunció un desdoblamiento de acciones de tres por una y una recompra de 800 mil millones de yenes, movimientos destinados a ampliar su base de accionistas y a mostrar confianza. Pero el mercado se centró en las perspectivas más débiles.
Note: "stock split" is "desdoblamiento de acciones" or "división de acciones". We'll use "desdoblamiento" or "split" but better to use "desdoblamiento" or "división". I'll use "desdoblamiento de acciones" for clarity. Next h2:Stock split and buyback fail to stem the slide
->El desdoblamiento de acciones y la recompra no logran frenar la caída
Paragraph: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.
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