• Micron Technology and SK Hynix surpassed $1 trillion in market value due to AI demand.
• Memories chips are central to AI infrastructure, leading to supply shortages.
• Both companies joined Samsung Electronics in the $1 trillion club this month.
• Micron's stock surged nearly 20% following a price target increase.
• The South Korean Kospi index hit a record high, boosted by chipmaker performances.

Micron Technology and SK Hynix, two leading semiconductor manufacturers, have each surpassed a market valuation of $1 trillion, largely fueled by the ongoing demand for advanced technology driven by artificial intelligence (AI) data centers. This significant milestone follows a spike in Micron's stock price, which soared nearly 20% after investment bank UBS raised its price target for the company. The valuation also places Micron among prominent tech giants such as Nvidia, Amazon, and Apple, who have engaged in the AI sector amidst a memory chip shortage that has intensified prices and demand, according to Reuters, BBC, and Channel News Asia.

Meanwhile, SK Hynix also experienced a substantial rise in its share value, reflecting strong domestic and international demand for high-end memory chips utilized in AI applications. The company's stock surged by as much as 14.9%, bringing its total market capitalization to approximately $1.12 trillion. This rise in valuation coincided with a notable increase in the South Korean Kospi stock index, which triggered a temporary trading halt due to rapid gains. The index has demonstrated impressive performance, climbing nearly 98% this year, according to Reuters and Channel News Asia.

High demand for memory chips is attributed to the expansion of AI technology, with reports indicating that prices for these chips have doubled in a single quarter and are expected to rise even further. This surge has significantly impacted manufacturers who supply chips for a variety of applications including smartphones and data centers. Analysts project that memory chip demand will remain robust, exceeding supply until at least 2028, which could sustain elevated price levels in the market for the foreseeable future, as outlined by BBC and Channel News Asia.

Alongside Micron and SK Hynix, Samsung Electronics also reached a market value exceeding $1 trillion earlier this month, marking a historic moment where South Korea became the first nation aside from the U.S. to house multiple companies of this magnitude. Both Samsung and SK Hynix together represent a significant portion of the Kospi index, emphasizing their influence within the tech sector and the overall economy of South Korea during this AI-driven market expansion, according to Reuters and Channel News Asia.