Stock Markets May 18, 2026 11:44 PM

Asia markets mixed as tech selling and Middle East headlines temper gains; Japan Q1 GDP outperforms forecasts

Tech losses and geopolitical headlines weigh on sentiment even as Japan posts stronger-than-expected growth in the first quarter

By Hana Yamamoto NVDA

Asian equity markets showed a split performance as technology stocks followed Wall Street weakness and investors digested Japan's stronger-than-expected Q1 GDP print. Oil eased after U.S. President Donald Trump said he paused planned strikes on Iran, but prices remained elevated amid supply risks in the Strait of Hormuz. South Korea's market fell sharply amid renewed labour talks at Samsung Electronics and the threat of strike action.

Asia markets mixed as tech selling and Middle East headlines temper gains; Japan Q1 GDP outperforms forecasts
NVDA

Key Points

  • Japan's annualised Q1 GDP rose 2.1%, beating the 1.7% forecast, supported by private consumption and external demand.
  • Technology stocks lagged as Wall Street losses and profit-taking ahead of Nvidia earnings pressured the sector.
  • Oil eased after news of a paused military strike on Iran, but supply disruptions in the Strait of Hormuz kept prices elevated.

Summary

Asian stocks closed mixed on Tuesday as declines in technology names tracked overnight losses on Wall Street and traders parsed fresh Japanese GDP data while monitoring developments in the Middle East. Futures in the U.S. were also slightly lower in Asian trading.


Key points

  • Japan's annualised Q1 GDP expanded 2.1%, above the 1.7% forecast, supported by stronger private consumption and external demand.
  • Technology shares led losses regionally after Wall Street weakness and ahead of Nvidia's quarterly results.
  • Oil prices eased after reports that planned U.S. strikes on Iran were paused, but crude remained high amid Strait of Hormuz supply risks.

Risks and uncertainties

  • Potential disruption to semiconductor production in South Korea if strike action at Samsung proceeds, affecting tech supply chains.
  • Elevated oil prices and supply disruptions in the Strait of Hormuz that can sustain inflationary pressures and weigh on markets sensitive to energy costs.
  • Profit-taking around AI-linked chip stocks ahead of key earnings could prolong weakness in technology sectors.

Market overview

Technology-heavy losses on Wall Street filtered into Asian trading, with the Nasdaq ending lower overnight amid concerns about inflation driven by higher oil. U.S. stock index futures were marginally down in Asia. Profit-taking hit AI-related chip names as investors positioned ahead of Nvidia's (NVDA) quarterly report due on Wednesday, viewed as a crucial test for the AI-driven rally's durability.

Japan data and market reaction

Japan reported an annualised GDP growth rate of 2.1% for the first quarter, above consensus expectations of 1.7%. The expansion was driven by firmer private consumption and stronger external demand. Capital expenditure rose 0.3% quarter-on-quarter, and the GDP price index climbed 3.4%, underlining persistent inflationary pressure. Despite the stronger-than-expected Q1 outturn, analysts cited in market commentary expect GDP growth to stall in the current and following quarter. In market moves, the Nikkei 225 slipped about 0.4% while the broader TOPIX gained roughly 0.5%.

Oil and geopolitical headlines

Oil eased modestly after U.S. President Donald Trump said he had paused a planned military strike on Iran and noted there was "a very good chance" of reaching a nuclear agreement with Tehran. Brent crude retreated from recent levels above $110 per barrel but remained elevated amid ongoing supply disruptions in the Strait of Hormuz.

Regional stock moves

The pause in military action contributed to gains in some markets: Australia's S&P/ASX 200 jumped 1.1% and Singapore's Straits Times Index rose 0.6%. However, most major bourses were subdued with technology shares weighing on performance. China's blue-chip CSI 300 fell 0.6%, the Shanghai Composite traded flat, and Hong Kong's Hang Seng was largely unchanged. Futures tied to India's Nifty 50 edged down about 0.3%.

South Korea and Samsung

South Korea's KOSPI traded roughly 3% lower after an earlier drop of as much as 5% in the session. Samsung Electronics (KS:005930) shares fell more than 5% as the company and its labour union resumed negotiations following talks a day earlier that did not produce an agreement. Investors expressed caution about the risk of a planned strike later this week that could disrupt semiconductor production. Reports noted a South Korean court had warned the union of fines if it failed to comply with court orders related to industrial action.


Market implications

The session underscored the market's sensitivity to tech earnings calendars, supply-chain labour risks in critical technology hubs, and geopolitical developments that influence energy prices and inflation expectations.

Risks

  • Potential semiconductor production disruptions in South Korea if strike action at Samsung proceeds, impacting the tech sector.
  • Sustained elevated oil prices from Strait of Hormuz supply risks that could add to inflation pressure and affect energy-sensitive sectors.
  • Further profit-taking in AI-linked chip stocks around Nvidia's earnings which could weigh on technology indices.

More from Stock Markets

Toronto market ends at fresh record as healthcare, financials and materials lead gains Jun 4, 2026 After-Hours Movers: Lululemon Dips on Guidance as Software and Data Names Show Mixed Reactions Jun 4, 2026 Lululemon Lowers Fiscal 2026 Revenue and EPS Guidance as U.S. Demand Softens Jun 4, 2026 Anthropic Places Engineers Inside NSA to Support Mythos AI for Offensive Cyber Tasks Jun 4, 2026 Trump Directs $700M Toward Coal Industry, Lifting Peabody Shares Jun 4, 2026