Asian equity markets were largely subdued on Tuesday, with a selloff in chip-related stocks and lingering concern over the stalled U.S.-Iran peace process keeping investors cautious. The recent technology-driven advance that had propelled many regional shares faded as traders booked profits, particularly in South Korea.
The KOSPI was the weakest performer across Asia, sliding as much as 4% in volatile session work after an earlier intraday high. Chipmakers - which had driven much of South Korea’s earlier gains - were hit hardest as investors dialed back positions that had benefited from expectations of rising artificial intelligence-driven demand.
Samsung Electronics Co Ltd (KS:005930) plunged by as much as 4% during the session, while SK Hynix Inc (KS:000660) recorded sharp, erratic moves. Market attention is fixed on labor negotiations at Samsung, where talks with its largest labor coalition are ongoing ahead of a planned strike set to begin on May 21. Analysts and market participants see the potential strike as a material risk to global memory chip output - a factor that had already been priced into the earlier rally but could harm Samsung if it occurs during a period of elevated memory demand.
Regional markets largely followed muted overnight signals from Wall Street, where technology gains edged the S&P 500 to record closes. However, the firming in U.S. shares was not enough to offset local selling, and S&P 500 futures slid 0.2% in Asian trading. Traders were also awaiting U.S. consumer price index inflation data due later in the day, which could influence broader risk appetite.
Elsewhere in Asia, performance was mixed. Japan’s Nikkei 225 and TOPIX both rose about 0.5%, largely ignoring bets on a possible interest rate hike by the Bank of Japan after a summary of opinions from the central bank’s April meeting showed a slightly more hawkish tilt among some officials. China’s Shanghai Shenzhen CSI 300 and the Shanghai Composite were essentially flat, while Hong Kong’s Hang Seng managed modest gains.
Markets also turned attention to an upcoming meeting between U.S. President Donald Trump and Chinese President Xi Jinping. The leaders are expected to cover a wide range of issues amid strained bilateral relations, and investors are watching for any developments that could affect trade and economic ties between the world’s two largest economies.
Australia’s ASX 200 fell 0.4%, pressured by losses in technology stocks, while Singapore’s Straits Times index was unchanged on the day. Futures for India’s Nifty 50 slid 0.2%, pointing to further weakness after the index dropped 1.5% on Monday; Indian markets reacted to a warning from Prime Minister Narendra Modi about possible economic strain from fuel shortages tied to the Iran conflict.
Geopolitical uncertainty remained a central theme for markets. Reports indicated the U.S. was considering additional military options against Iran after a proposed peace initiative largely collapsed. That dynamic helped keep oil prices elevated, reinforcing investor worry about the inflationary consequences of the conflict and maintaining downward pressure on risk assets.
With inflation readings and geopolitical risk both front of mind, the market environment stayed cautious. For now, investors appear to be balancing the prospects of technology-driven demand for chips against near-term threats to supply and the broader economic impact of elevated oil prices and geopolitical friction.