--- title: "U.S. stock night market volatility: GCT Semiconductor fell 8.91% in after-hours trading, as the market harbors doubts about high valuations and increased volatility" type: "News" locale: "en" url: "https://longbridge.com/en/news/286845845.md" description: "GCT Semiconductor fell 8.91% in after-hours trading; Micron Technology fell 1.30% in after-hours trading, with a transaction volume of USD 215 million; NVIDIA fell 0.73% in after-hours trading, with a transaction volume of USD 64.51 million; Intel fell 1.75% in after-hours trading, with a transaction volume of USD 27.15 million" datetime: "2026-05-19T02:51:45.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/286845845.md) - [en](https://longbridge.com/en/news/286845845.md) - [zh-HK](https://longbridge.com/zh-HK/news/286845845.md) --- # U.S. stock night market volatility: GCT Semiconductor fell 8.91% in after-hours trading, as the market harbors doubts about high valuations and increased volatility **U.S. Stock Night Market Movements** GCT Semiconductor fell 8.91% in the night market. Based on recent key news: 1. On May 18, GCT Semiconductor's stock price rose 23.50% in pre-market trading, mainly due to a 287% surge in company revenue. This growth reflects the company's efforts to expand customer relationships and enhance production capacity, driving the stock price up. 2. On May 18, the company focused on expanding customer relationships and enhancing production capacity to meet the growing demand for advanced semiconductor solutions. This strategy has instilled confidence in the market regarding the company's future growth, positively impacting the stock price. 3. On May 16, Simply Wall St's analysis highlighted the company's long-term growth potential. Although no specific buy or sell recommendations were provided, the comments based on historical data and analyst forecasts offered investors a reference. The semiconductor industry is experiencing strong demand, with increased market volatility. **Top Stocks by Industry Trading Volume** Micron Technology fell 1.30% in the night market. Based on recent key news: 1. On May 17, Micron Technology stated through its WeChat public account that China remains one of the most vibrant semiconductor markets globally and looks forward to further deepening cooperation with local customers and partners. This statement shows the company's emphasis on the Chinese market, which may positively impact the stock price. 2. On May 18, The Wall Street Journal reported that the AI-driven memory chip boom conceals potential risks on the demand side, particularly as Micron Technology's low price-to-earnings ratio reflects market skepticism about the future. If AI models become more memory-efficient, demand for high-priced HBM chips will sharply decline, putting pressure on the stock price. 3. On May 18, the CEO of Seagate stated at a JP Morgan conference that the lengthy construction of new factories could lead the company to ultimately face overcapacity, raising market concerns that memory chip production may not meet the surge in demand, dragging down Micron Technology's stock price. The semiconductor industry is experiencing strong demand, with significant market volatility. NVIDIA fell 0.73% in the night market. Based on recent key news: 1. On May 18, Morgan Stanley raised NVIDIA's target price to $285, expecting AI data center demand to drive performance growth. Analysts believe that the advancement of the Rubin product cycle may bring gross margin pressure, but strong supply visibility and sustained AI demand momentum will offset this. Source: MarketWatch 2. On May 18, the market outlook for NVIDIA's earnings report is optimistic, with the options market showing investors betting on better-than-expected performance. Data from the Chicago Board Options Exchange indicates that traders expect stock price volatility of up to 6.25% around the earnings report. Source: Barron’s 3. On May 18, NVIDIA's cooperation layout in the Chinese market became a market focus. The U.S. approved Alibaba and others to purchase NVIDIA chips, pushing the stock price to a historic high. Source: Zhitong Finance AI demand is strong, and market sentiment is high Intel's after-hours trading fell by 1.75%. Based on recent key news: 4. On May 18, U.S. President Trump revealed in an exclusive interview with Fortune magazine that the government had requested Intel to provide more shares, indicating the government's support for Intel. This news has sparked market attention on Intel's future development, leading to increased stock price volatility. Source: Investing.com 5. On May 18, Citigroup raised Intel's target stock price to $130, reflecting the market's optimistic expectations for Intel's data center business growth. This move further propelled the stock price upward. Source: Golden Finance 6. On May 16, the 13F report showed that Hillhouse Capital increased its holdings in Intel, indicating investors' confidence in its long-term growth potential. This news had a positive impact on the stock price. Source: Golden Finance Technology stocks experienced profit-taking, leading to market sentiment fluctuations ### Related Stocks - [GCTS.US](https://longbridge.com/en/quote/GCTS.US.md) - [MU.US](https://longbridge.com/en/quote/MU.US.md) - [NVDA.US](https://longbridge.com/en/quote/NVDA.US.md) - [INTC.US](https://longbridge.com/en/quote/INTC.US.md) ## Related News & Research - [GCT Semiconductor Q1 revenue jumps 287%](https://longbridge.com/en/news/286150386.md) - [I'd Double My Position in These 3 Dividend Stocks Without Thinking Twice](https://longbridge.com/en/news/286938784.md) - [New SOUR PATCH KIDS CHEWS are Here to Challenge the Candy Status Quo | MDLZ Stock News](https://longbridge.com/en/news/286929752.md) - [Trump seeks gas tax suspension amid record fuel prices](https://longbridge.com/en/news/286680831.md) - [Should you invest $1,000 in AGNC Investment right now?](https://longbridge.com/en/news/286802595.md)