--- title: "U.S. stock night market fluctuations: Astera Labs rose 3.13% in after-hours trading, boosted by better-than-expected earnings report and favorable CXL news" type: "News" locale: "en" url: "https://longbridge.com/en/news/294912944.md" description: "Astera Labs rose 3.13% in after-hours trading; Micron Technology rose 1.39% in after-hours trading, with a transaction volume of USD 283 million; AMD fell 7.37% in after-hours trading, with a transaction volume of USD 278 million; SK Hynix rose 0.99% in after-hours trading, with a transaction volume of USD 953.9 million" datetime: "2026-08-05T05:12:47.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/294912944.md) - [en](https://longbridge.com/en/news/294912944.md) - [zh-HK](https://longbridge.com/zh-HK/news/294912944.md) --- # U.S. stock night market fluctuations: Astera Labs rose 3.13% in after-hours trading, boosted by better-than-expected earnings report and favorable CXL news **U.S. Stock Night Market Movements** Astera Labs rose 3.13% in after-hours trading. Based on recent key news: 1. On August 4, Astera Labs surged during the trading session, currently reported at $352.99, an increase of 9.95%. The stock's movement was mainly driven by Q2 earnings expectations and several analysts raising their target prices. Wall Street expects the company's Q2 revenue to reach $360.7 million, with an adjusted earnings per share of $0.69, as demand for PCIe 6.0 remains strong. The Philadelphia Semiconductor Index opened up 4%, with overall positive sentiment in the sector, and component stocks like AMD and Micron also rose. 2. On August 4, Astera Labs rose over 10% in pre-market trading, currently reported at $354.48. The market expects the company's Q2 revenue to be $360.7 million, with an adjusted earnings per share of $0.69. Previously, Barclays raised its target price by 62% to $325, and BNP Paribas listed it as a preferred stock in the AI supply chain with a target price of $475. Samsung, SK Hynix, and Micron have halted internal CXL controller development and are turning to external chip design companies for procurement, which is expected to benefit Astera Labs and others. 3. On August 5, Astera Labs' stock price rose 5.07% in after-hours trading to $380.01. The company's Q2 sales significantly increased, exceeding analyst expectations, and provided strong guidance for the current quarter. Despite these positive results, ALAB stock experienced a decline in after-hours trading. The Philadelphia Semiconductor Index opened up 4%, with overall positive sentiment in the sector. **Stocks with High Trading Volume in the Industry** Micron Technology rose 1.39% in after-hours trading. Based on recent key news: 1. On August 5, Micron Technology rose 7.75% during the trading session, benefiting from the strength of the U.S. semiconductor sector, with the Philadelphia Semiconductor Index's gains expanding to 5%. Bank of America reiterated a buy rating on Micron, with a target price of $155, stating strong AI demand and increased long-term supply agreements, enhancing supply-demand visibility. Source: Zhitong Finance 2. On August 4, a report from Counterpoint Research showed that Micron Technology is closely following SK Hynix with a 25% market share, and further growth is expected for Micron. Source: Wall Street Insights 3. On August 3, union organizations in Taiwan are contemplating a strike at Micron, which could impact the DRAM supply chain. The union questions the company's revenue surge while bonuses are limited; if the strike occurs, it will affect HBM supply. Source: Jinshi Data. Strong AI demand and a robust semiconductor sector have led to significant market fluctuations. AMD fell 7.37% in after-hours trading. Based on recent key news: 1. On August 4, AMD announced its Q2 earnings report, which exceeded market expectations for both revenue and profit, but the Q3 revenue guidance did not meet some investors' high expectations, leading to a sharp decline in the stock price after hours. AMD expects Q3 revenue to be around $13 billion, with a fluctuation of $300 million, while some Wall Street institutions had previously expected higher, resulting in a negative market reaction 2. On August 4th, AMD's second-quarter data center business revenue grew by 107% year-on-year, reaching $6.718 billion, mainly benefiting from the increased demand for EPYC server processors and Instinct AI GPUs. Despite the impressive performance, concerns about future growth rates remain, affecting the stock price. 3. On August 4th, AMD's second-quarter capital expenditure reached $808 million, far exceeding analysts' expectations of $298.6 million, indicating the company's significant investment in business expansion, but also raising market concerns about its financial pressure. The AI chip market is highly competitive, and investments should be cautious. SK Hynix's night trading rose by 0.99%. Based on recent key news: 1. On August 5th, the market speculated that SK Hynix might soon announce details of a stock buyback plan and other shareholder return plans, driving the stock price up. Analysts expect the end of the quiet period will clear the way for the company to disclose its shareholder return plan, with the stock price rising by as much as 7.9%. Source: Yonhap News Agency 2. On August 5th, JP Morgan maintained an optimistic view on SK Hynix and the memory industry outlook, despite lowering the target price, still seeing it as an opportunity to increase positions. Source: JP Morgan 3. On August 5th, several Wall Street financial institutions initiated coverage research on SK Hynix ADR, giving "Buy" or "Overweight" ratings, believing the current stock price is undervalued. Source: Jinse Finance The storage chip industry has recently fluctuated upwards, driven by increased AI demand ### Related Stocks - [ALAB.US](https://longbridge.com/en/quote/ALAB.US.md) - [MU.US](https://longbridge.com/en/quote/MU.US.md) - [AMD.US](https://longbridge.com/en/quote/AMD.US.md) - [SKHY.US](https://longbridge.com/en/quote/SKHY.US.md) ## Related News & Research - [Astera Labs Analysts Boost Their Forecasts Following Better-Than-Expected Q2 Earnings](https://longbridge.com/en/news/294963676.md) - [Astera Labs Q2 FY26 GAAP net income more than doubles to $153.09 million; revenue more than doubles to $392.4 million](https://longbridge.com/en/news/294865977.md) - [ALAB: Record Q2 revenue and Scorpio X-Series ramp drive strong growth outlook for Q3](https://longbridge.com/en/news/294883659.md) - [Astera's Q2 results draw positive reactions from analysts for Scorpio X lineup](https://longbridge.com/en/news/294972598.md) - [VectorGlobal IAG Inc. 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