AdvertisementAdvertisementA trader works on the floor of the New York Stock Exchange (NYSE) in New York on Jul 14, 2026. (Photo: AFP/Timothy A. Clary)17 Jul 2026 05:38AM (Updated: 17 Jul 2026 05:44AM) Bookmark Bookmark WhatsApp Telegram Facebook Twitter Email LinkedInAdd CNA as a trusted source to help Google better understand and surface our content in search results.Read a summary of this article on FAST.Get bite-sized news via a newcards interface. Give it a try.Click here to return to FAST Tap here to return to FASTFAST NEW YORK: Major stock markets mostly retreated Thursday (Jul 16) as semiconductor shares extended falls, while oil prices wobbled as the United States and Iran exchanged fresh strikes.Tech-driven losses in Asia came before European and US markets mostly traded lower."Fragile sentiment is leading to a continued pullback in memory chip stocks after their gravity-defying run as investors fret about elevated valuations," noted Dan Coatsworth, head of markets at AJ Bell trading group.Leading Wall Street equity indices pulled back, led by the tech-rich Nasdaq, which lost 1.5 per cent.Seoul's Kospi fell more than six per cent as chip titan SK hynix and Samsung both fell significantly amid growing anxiety that the AI rally - which had pushed both firms to record highs this year - had run its course.Traders are questioning whether the vast sums pumped into the AI sector in recent years will eventually pay off and justify the eye-watering valuations for some firms.Shares in TSMC fell in New York, even as the Taiwanese chipmaker issued positive forward guidance and announced that net profit soared more than 77 per cent to a record high in the second quarter thanks to massive demand for AI hardware. It said it would invest an additional US$100 billion in the US state of Arizona.Shares in Dutch firm ASML, which manufactures chip-making machines that underpin the tech industry, also fell after releasing blockbuster earnings on Wednesday."This all makes one wonder what US tech corporations will have to come up with to get investors genuinely excited again," said market analyst David Morrison at Trade Nation."This is important, as the earnings season picks up several gears over the next fortnight."Yemen's Houthis threaten attacks on Saudi oil facilitiesIndia ask its seafarers not to take Hormuz voyagesIran tells Houthis to close Red Sea gateway if US hits power network, sources sayUS retail sales ticked up by 0.2 per cent month-on-month in line with analysts' expectations, but the increase was slower than the 1.0 per cent jump in May.Analysts said the figures suggested solid underlying consumer demand given the drop in gasoline prices during the month.In spite of encouraging economic data, US stocks have been volatile this week, pressured not only by AI valuation doubts but also by worsening US-Iran tensions that have lifted oil prices most of the week."Higher oil is also increasingly testing the consensus view that peak cost pressures are behind us," said Jose Torres, senior economist at Interactive Brokers.Oil prices fell marginally Thursday as the US struck Iran and Tehran hit back at US allies in the Gulf on Thursday.Analysts at Rystad Energy lifted the odds that no "substantive agreement" emerges between the two countries to 55 per cent.While the United States and Iran "have strong economic incentives to avoid a complete breakdown," there remain disagreements on Iran's nuclear program and the Strait of Hormuz, said Rystad senior vice president Jorge Leon."After Aug. 16, the question becomes whether the shipping market can adapt to a continuing threat rather than whether diplomacy can resolve one," Leon said.Source: AFP/fsSign up for our newslettersGet our pick of top stories and thought-provoking articles in your inboxSubscribe hereGet the CNA appStay updated with notifications for breaking news and our best storiesDownload hereGet WhatsApp alertsJoin our channel for the top reads for the day on your preferred chat appJoin hereAlso worth readingContent is loading...Expand to read the full storyGet bite-sized news via a newcards interface. Give it a try.Click here to return to FAST Tap here to return to FASTFAST