Asian equities showed divergent moves on Tuesday as market participants digested mixed signals around the U.S.-Iran situation and a pullback in chip-led rallies. Although Wall Street provided an initial tailwind after another session of record highs driven by semiconductor strength, that momentum cooled by Asian trading hours.
S&P 500 futures were down 0.4% during Asian trade, reflecting a loss of risk appetite that coincided with renewed uncertainty over U.S.-Iran communications. A late-Monday report said Tehran had ceased communicating with the U.S. through mediators, but U.S. President Donald Trump countered that talks were ongoing and said he expected a deal within the next week.
Markets that had recently outperformed pulled back. Japan's Nikkei 225 and South Korea's KOSPI were the weakest performers in the region on Tuesday, each slipping about 2% from record highs. The retreat was concentrated among chipmakers and technology shares, which had accounted for a substantial portion of recent gains in both markets.
Profit-taking hit semiconductor stocks in particular after a vigorous rally through May fueled by optimism around artificial intelligence demand. The recent unveiling of additional AI products by Nvidia on Monday had contributed to that advance, but the sharp run-up appears to have left some positions vulnerable to short-term trimming.
South Korea's market was also affected by a domestic inflation surprise. Consumer price inflation for May came in stronger than expected, reaching a 26-month high, a reading that has increased market expectations that the Bank of Korea may raise interest rates later in the year.
Hong Kong stood out as a regional bright spot. The Hang Seng index rose 0.8% as a handful of heavyweight technology and consumer-facing names pushed the gauge higher. BYD rose nearly 5% after reporting its first month-on-month sales increase in eight months, while Tencent jumped almost 8% following a Financial Times report that it plans to introduce an embedded AI agent for its WeChat application.
Elsewhere in China, the Shanghai Shenzhen CSI 300 added 0.7% even as the Shanghai Composite edged slightly lower. The divergence between large-cap mainland stocks and the broader Shanghai index reflected selective buying in larger, market-moving names.
Australia's S&P/ASX 200 fell 0.5% after comments from Reserve Bank of Australia board member Ian Harper, who warned that sticky inflation remains a significant issue. Those remarks renewed concerns that the RBA could pursue additional rate increases after it has already raised rates by a cumulative 75 basis points so far this year.
Other regional moves included a 0.6% gain for Singapore's Straits Times index. Futures for India's Nifty 50 were down 0.8%, signaling potential extended losses for the Nifty.
In sum, the session highlighted a market in which geopolitical ambiguity and central-bank-sensitive inflation readings are intersecting with technical profit-taking in the technology and semiconductor complex. That combination produced clear winners and losers across Asian exchanges, with the most pronounced weakness found in markets that had been carried higher by chip and tech rallies.