Asian Stocks Diverge as New Chinese AI Model Sparks Market Shake-Up

Asian stock markets showed a stark divergence on Monday, with South Korean equities tumbling while Chinese shares rallied after a new artificial intelligence development prompted investors to reassess valuations across the global tech sector.

AI Competition Rattles Markets

The catalyst for the market moves was the unveiling of the Kimi K3 large language model by Chinese startup Moonshot AI, positioned as a lower-cost competitor to established Western AI models. This news sparked concerns that intensifying competition could erode the profitability and rich valuations of leading AI and semiconductor firms.

• South Korea's KOSPI was the region's biggest loser, sliding nearly 4%. The decline was led by major technology names, with shares of Samsung Electronics (KS:005930) and SK Hynix (KS:000660) both falling by approximately 4%.
• Chinese and Hong Kong markets, in contrast, outperformed. China's blue-chip CSI 300 index climbed 2%, while Hong Kong's Hang Seng Index jumped 2.5%. Investors there viewed the domestic AI breakthrough as a sign of China's growing competitiveness, boosting local tech stocks like SMIC (HK:0981), which gained over 4%.

Broader Caution Lingers

Investor sentiment was also tempered by geopolitical tensions and macroeconomic factors. Escalating military exchanges between the U.S. and Iran pushed oil prices above $90 per barrel, fueling concerns that persistent inflation could complicate future policy decisions by major central banks.

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Elsewhere in the region, Australia's S&P/ASX 200 edged up 0.2%, while Singapore's Straits Times Index dipped 0.1%. Japanese markets were closed for a public holiday.

Economic and Earnings Outlook

In economic news, China's central bank kept its benchmark lending rates unchanged on Monday, a move that was widely expected as policymakers prioritize stability amid an uneven economic recovery.

Looking ahead, market participants are focused on a heavy week of corporate earnings from the U.S. Results from tech giants including Tesla (NASDAQ:TSLA), Alphabet (NASDAQ:GOOGL), and Intel (NASDAQ:INTC) are expected to provide fresh insights into corporate spending and demand related to artificial intelligence.