--- title: "U.S. stock night trading volatility: ASML fell 3.10% in night trading, panic triggered by China's DUV threat" type: "News" locale: "en" url: "https://longbridge.com/en/news/294170058.md" description: "ASML fell 3.10% in the night session; Applied Materials fell 2.62% in the night session, with a transaction volume of USD 19.09 million; KLA fell 10.26% in the night session, with a transaction volume of USD 11.38 million; Lam Research fell 2.96% in the night session, with a transaction volume of USD 11.27 million" datetime: "2026-07-29T07:47:11.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/294170058.md) - [en](https://longbridge.com/en/news/294170058.md) - [zh-HK](https://longbridge.com/zh-HK/news/294170058.md) --- # U.S. stock night trading volatility: ASML fell 3.10% in night trading, panic triggered by China's DUV threat **U.S. Stock Night Market Movements** ASML fell 3.10% in the night market. Based on recent key news: 1. On July 27, ASML and Lam Research were automatically suspended after falling 8% to 8.7%. This event caused market panic, leading to further declines in stock prices. 2. On July 28, after resuming trading, ASML's stock price continued to drop by 7.4%-8%. The continued decline after resumption reflects investors' concerns about the company's prospects. 3. On July 28, market rumors suggested that DUV systems manufactured in China might pressure ASML's long-term competitive position, triggering a significant drop in stock prices. The technology sector has seen increased volatility recently, necessitating attention to policy changes. **Stocks with High Trading Volume in the Industry** Applied Materials fell 2.62% in the night market. Based on recent key news: 1. On July 28, market concerns about the progress of semiconductor equipment localization in China may weaken Applied Materials' market share in China. Chinese foundries are gradually reducing their reliance on Western equipment suppliers like ASML, which could impact Applied Materials' sales of film deposition equipment, leading to a decline in stock prices. Source: Bloomberg 2. On July 28, Michael Burry shorted Applied Materials, citing a 26% drop from its peak and a high price-to-earnings ratio. Investors are worried that China's shift to domestic equipment suppliers and early capital expenditures in memory could affect Applied Materials' future orders. Source: MarketBeat 3. On July 27, HSBC raised the target price for Applied Materials due to optimism about the foundry equipment market performance. Analysts believe market demand is strong, but stock prices are still affected by other negative factors. Source: HSBC The semiconductor equipment industry faces challenges in the Chinese market, necessitating attention to policy changes. KLA fell 10.26% in the night market. Based on recent key news: 1. On July 29, KLA announced its financial results, and despite revenue and earnings exceeding expectations, the stock price fell more than 10% after hours. Investors were disappointed by concerns about the semiconductor equipment industry's cycle peaking and the guidance being only slightly above expectations, leading to a significant drop in stock prices. Source: Viewpoint Network 2. On July 28, the acceleration of semiconductor equipment localization in China raised market concerns that Chinese equipment suppliers would gradually replace Western suppliers, impacting KLA's growth prospects in the Chinese market. Source: Zhito Finance 3. On July 29, KLA updated its business expectations; despite good financial results, the market sentiment was unclear, leading to a significant correction in stock prices after the earnings report was released. Source: Technology News The risk of the semiconductor industry's cycle peaking has intensified. Lam Research fell 2.96% in the night market. Based on recent key news: 1. On July 29, market skepticism about AI infrastructure spending may lead to a downward adjustment in Lam Research's order outlook. As major AI developers make significant progress in model efficiency, the hardware expansion phase may slow down, impacting Lam Research's etching and deposition tool orders, thus putting pressure on stock prices. 2. On July 29, industry checks by analysts showed that despite strong demand, Lam Research's gross margins are under pressure from rising operating costs and the cyclical downturn in NAND memory The company's high market share in the NAND market exposes it to greater risks, leading to a decline in stock prices. On July 27, HSBC raised the target price for Lam Research Corporation due to expectations of strong performance in the wafer fabrication equipment market. Analysts believe that market demand exceeds expectations, driving stock price fluctuations. 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