Stock Markets June 28, 2026 10:58 PM

Asian markets mixed as AI valuation fears temper optimism from Middle East ceasefire hopes

Chip sector weakness and profit-taking in tech offset improved geopolitical sentiment after U.S.-Iran exchanged a temporary halt in attacks

By Avery Klein
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Asian equities opened the week unevenly as investors balanced relief from a temporary halt in U.S.-Iran hostilities against renewed caution about high valuations in AI-linked stocks. Technology and semiconductor names saw selling pressure after last week’s volatility, while regional economic data and a busy global calendar kept market participants cautious.

Asian markets mixed as AI valuation fears temper optimism from Middle East ceasefire hopes
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Key Points

  • Asian markets opened mixed as easing U.S.-Iran hostilities were offset by investor concerns over high valuations in AI-linked stocks and recent volatility in semiconductor names.
  • South Korea's KOSPI led regional declines, pressured by losses at major chipmakers that fell roughly 5.3% and 3.6% respectively, while Japan's Nikkei 225 dropped about 0.8% and Hong Kong's Hang Seng gained about 1.6%.
  • Economic releases across the region and in Europe, plus U.S. regional manufacturing data, are upcoming catalysts that could influence market direction amid selective investor positioning.

Market overview

Asian equity markets traded mixed on Monday as traders digested two opposing forces: a tentative easing of tensions between the United States and Iran, and lingering investor concern over stretched valuations in stocks tied to artificial intelligence and semiconductors. U.S. equity futures pointed to a cautious start on Wall Street, with Nasdaq 100 futures down roughly 1% and S&P 500 futures off about 0.3% in Asian hours, following Friday's declines when investors booked profits across large technology names.

Tech and semiconductor pressure

Technology-related shares continued to underperform after a volatile week for global chip stocks highlighted investor unease about lofty valuations. South Korea's KOSPI led losses in the region, falling nearly 2%, a decline that reflected the market's sensitivity to shifts in sentiment toward major chipmakers. Japan's Nikkei 225 dropped about 0.8%.

By contrast, Australia's S&P/ASX 200 inched up 0.2%, Hong Kong's Hang Seng rose roughly 1.6%, and mainland China's Shanghai Shenzhen CSI 300 was essentially flat.

Among the Korea-listed chip companies, the large-cap names showed notable weakness. The two heavyweight chipmakers on the KOSPI lost ground on Monday, with one slipping about 5.3% and the other down around 3.6% on the day. The sector-wide pressure followed last week's sharp swings that left investors questioning whether rapid gains in AI-related capital spending and semiconductor valuations remain justified without clearer signs of stronger earnings growth.

Despite upbeat guidance from Micron during the previous week, market participants and some analysts say they are becoming more selective within the AI-themed trade. That selective approach has prompted rotation away from some of the market's biggest winners as investors weigh timing and magnitude of earnings translation from the outsized AI investments announced by many companies. Month-end and quarter-end portfolio rebalancing activity also appeared to weigh on technology and semiconductor stocks.

Geopolitical backdrop

Geopolitics remained a focal point for markets after reports that the United States and Iran agreed over the weekend to halt their latest exchange of attacks. The development renewed hopes that an interim ceasefire could persist following several days of fresh hostilities near the Strait of Hormuz. While the agreement eased immediate fears of further escalation, investors remained cautious about how durable the pause in hostilities will be.

Regional data and upcoming catalysts

Forward-looking market participants were also watching regional economic releases and a packed global calendar. Nifty 50 futures were little changed, suggesting a muted open for Indian equities. In Japan, retail sales rose 5.3% year-on-year in May, comfortably above consensus expectations for a 3.1% increase, and large-scale retail sales also beat forecasts, indicating resilience in domestic consumption.

Later in the trading day, investors were set to parse euro zone money supply, lending, and business sentiment readings for fresh signals on the European Central Bank's policy outlook. India is due to publish industrial production and manufacturing output figures. The U.S. session will include the Dallas Fed Manufacturing Business Index, which market participants will use for additional insight into growth momentum ahead of a busy week of labor market reports.


Context and implications

The juxtaposition of softer geopolitical risk and heightened valuation scrutiny in AI and semiconductors is producing a cautious tone across asset classes. While the ceasefire talks have reduced the immediate tail risk of a wider conflict, investor focus has shifted back to fundamentals and the timetable for AI capital spending to translate into measurable profit growth for major technology and semiconductor firms. That focus has encouraged selective positioning and profit-taking after a strong rally earlier in the year.

Given the range of macro and company-level data scheduled for release this week, market participants appear to be adopting a wait-and-see stance. The combination of possible policy signals from European data, domestic activity indicators in India and Japan, and U.S. regional manufacturing readings provides multiple near-term catalysts that could shape sentiment heading into upcoming labor market announcements.

Overall, markets are balancing relief from a pause in hostilities against persistent questions about valuation and earnings delivery in AI-related investments, leaving trading patterns mixed across Asian bourses.

Risks

  • Durability of the U.S.-Iran ceasefire - while recent developments reduced immediate escalation risk, investors remain cautious about whether the halt in exchanges will hold, a factor that could quickly alter risk sentiment in energy and regional markets.
  • Valuation risk in AI and semiconductor stocks - heightened scrutiny of lofty valuations and uncertainty over the timing of earnings realization from AI capital spending could prompt further rotation and volatility in technology and chip sectors.
  • Portfolio rebalancing effects - month-end and quarter-end rebalancing activity may continue to pressure heavily weighted winners in major indices, affecting market liquidity and amplifying moves in large-cap technology names.

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