Asian Markets Decline Amid AI Spending Concerns and Rising Oil Prices

South Korea's financial regulator announced an advance in the implementation of higher deposit requirements for retail trading of single stock leveraged ETFs to July 31. This measure aims to mitigate market volatility, requiring retail investors to maintain a cash deposit of approximately 30 million won (about $20,000). The decision comes in response to concerns that the approval of domestic leveraged ETFs linked to major firms like Samsung Electronics and SK Hynix has exacerbated market fluctuations.

The recent selloff in Asian markets reflects two interconnected pressures: a reassessment of the sustainability of AI infrastructure spending following disappointing results from Alphabet, and a surge in oil prices that raises inflation concerns. Chipmakers, which have greatly benefited from the AI investment boom, are particularly vulnerable to any slowdown in capital expenditures from major tech firms.

Despite the equity downturn, the South Korean won strengthened to its highest level in 11 weeks against the dollar, indicating that some market movements may be defensive rather than a wholesale exit from Korean assets. Brent crude oil prices have surged above $100 per barrel, further complicating the market landscape by introducing inflationary pressures.

The Korea Exchange activated trading curbs on both the KOSPI and KOSDAQ indices after significant declines, with the KOSPI dropping around 5.5%. Major companies such as Samsung Electronics and SK Hynix saw their shares decline by approximately 7%. Foreign investors were net sellers of several hundred million dollars in South Korean equities.

In Japan, the Nikkei index fell by more than 2.5%, with the broader Topix down around 1.3%, marking a monthly decline of over 7% and pushing the Nikkei deeper into correction territory. Analysts noted that the decline in Japanese equities has been largely influenced by external factors, including movements in the KOSPI and the US Philadelphia semiconductor index. The upcoming Japanese corporate earnings season may provide further insights into market demand.

The combination of AI spending apprehensions and the rising cost of oil has created a challenging environment for Asian markets, with traders facing multiple sources of stress simultaneously.