--- title: "U.S. stock market midday update: Astera Labs stock price rises 13.23%, driven by a surge in AI demand boosting revenue significantly!" type: "News" locale: "en" url: "https://longbridge.com/en/news/286947603.md" description: "Astera Labs rose 13.23%; Micron Technology rose 4.77%, with a transaction volume of USD 27.1 billion; NVIDIA rose 0.36%, with a transaction volume of USD 15.9 billion; AMD fell 0.28%, with a transaction volume of USD 10 billion; TSMC rose 0.22%, with a market value of USD 2.06 trillion" datetime: "2026-05-19T17:03:13.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/286947603.md) - [en](https://longbridge.com/en/news/286947603.md) - [zh-HK](https://longbridge.com/zh-HK/news/286947603.md) --- # U.S. stock market midday update: Astera Labs stock price rises 13.23%, driven by a surge in AI demand boosting revenue significantly! **U.S. Stock Market Midday Update** Astera Labs rose 13.23%. Based on recent key news: 1. On May 19, Astera Labs reported significant growth in revenue and earnings per share, particularly driven by strong performance in the Scorpio and PCIe Gen 6 product lines, leading to a 13.23% increase in stock price. The company's leadership in AI connectivity and networking has been further solidified. Source: MarketBeat 2. On May 18, with a surge in demand for AI infrastructure, Astera Labs, as a core supplier of data center interconnect chips, benefited from the growing demand for AI servers and high-performance computing clusters. The stock price rose 1.77%, with a trading volume of $1.362 billion. Source: Zhitong Finance 3. On May 17, Astera Labs was identified as one of the AI stocks to watch in 2026 due to its potential in the AI hardware sector. Source: MarketBeat AI infrastructure demand remains strong, with significant volatility in the semiconductor sector. **Top Stocks by Industry Trading Volume** Micron Technology rose 4.77%. Based on recent key news: 1. On May 19, Citigroup raised Micron Technology's target price from $425 to $840, reflecting market expectations for a rise in its DRAM prices. This move indicates investor confidence in Micron's profitability driven by AI demand. 2. On May 18, Mizuho Securities raised its target stock price for Micron Technology, believing that the spillover demand from AI infrastructure construction will continue to drive growth in the memory chip market. Analysts expect Micron to benefit in the HBM market, further solidifying its industry position. 3. On May 17, The Wall Street Journal reported that Micron Technology is expected to see its earnings soar to the sixth highest among U.S. publicly traded companies due to explosive growth in AI demand, showcasing its strong performance in the memory chip market. AI demand is driving chip stocks up, and the market is optimistic. NVIDIA rose 0.36%. Based on recent key news: 1. On May 19, NVIDIA is set to release its earnings report, with the market expecting its performance to exceed expectations and guidance to be raised. Morgan Stanley anticipates NVIDIA's revenue to be about $3 billion higher than expected, with guidance raised by $4 billion, driving the stock price up. Source: Morgan Stanley 2. On May 18, the U.S. approved NVIDIA's sale of H200 chips to China, drawing market attention to its presence in the Chinese market. Despite geopolitical risks, NVIDIA remains a core supplier of global AI infrastructure, with strong stock performance. Source: Zhitong Finance 3. On May 19, NVIDIA CEO Jensen Huang stated that the difficulty of infrastructure expansion will increase over the next decade, necessitating adequate supply chain preparedness. The market is focused on its supply chain reserves and future growth potential. Source: Jinshi Data AI demand remains strong, valuations are high, and there are policy risks AMD fell 0.28%, with increased trading volume. Based on recent key news: 4. On May 19, AMD Chairwoman Lisa Su stated in Beijing that the Chinese market is extremely important and expressed expectations to deepen cooperation with Chinese partners. This positive statement may have boosted market confidence in AMD's business in China. 5. On May 19, Evercore ISI raised AMD's target price from $358 to $579, reflecting market optimism about AMD's future growth. 6. On May 18, Citigroup raised AMD's target price from $358 to $460, showing analysts' confidence in the growth of AI-driven server CPU demand. The semiconductor market is experiencing short-term fluctuations, and risks need to be monitored. **Stocks ranked at the top of the industry by market capitalization** TSMC rose 0.22%. Based on recent key news: 1. On May 18, TSMC announced the sale of approximately 8.1% of its shares in United Microelectronics Corporation, leading to a brief drop in its stock price. TSMC sold 152,000 shares at NT$160.6 each, totaling NT$24.411 billion. Although it emphasized that this does not affect its cooperative relationship with United Microelectronics, the market reacted strongly, causing United Microelectronics' stock price to hit the daily limit down. Source: Zhitong Finance 2. On May 19, Bernstein analysts raised the target price for TSMC ADR, believing it has strong growth potential in the AI field. Analysts pointed out that TSMC is trading at about a 20% discount compared to the Philadelphia Semiconductor Index and is expected to benefit from increased AI capital expenditures by cloud service providers. Source: CNBC 3. On May 18, foreign capital continuously sold TSMC, indicating a rise in market risk aversion. Foreign capital sold NT$45.241 billion, mainly adjusting positions in weighted stocks like TSMC, with funds flowing into bond ETFs, reflecting a demand for safe-haven assets against risk assets. Source: Wall Street Insight AI demand growth, semiconductor industry competition intensifies ### Related Stocks - [ALAB.US](https://longbridge.com/en/quote/ALAB.US.md) - [MU.US](https://longbridge.com/en/quote/MU.US.md) - [NVDA.US](https://longbridge.com/en/quote/NVDA.US.md) - [AMD.US](https://longbridge.com/en/quote/AMD.US.md) - [TSM.US](https://longbridge.com/en/quote/TSM.US.md) ## Related News & Research - [Ethic Inc. 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