--- title: "U.S. stock night market volatility: Astera Labs fell 3.02% in after-hours trading, UBS raised the target price but failed to boost cautious sentiment" type: "News" locale: "en" url: "https://longbridge.com/en/news/293998130.md" description: "Astera Labs fell 3.02% in after-hours trading; Micron Technology fell 3.14% in after-hours trading, with a transaction volume of USD 201 million; SK Hynix fell 1.98% in after-hours trading, with a transaction volume of USD 722.4 million; NVIDIA fell 0.98% in after-hours trading, with a transaction volume of USD 468.4 million" datetime: "2026-07-28T02:22:27.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/293998130.md) - [en](https://longbridge.com/en/news/293998130.md) - [zh-HK](https://longbridge.com/zh-HK/news/293998130.md) --- # U.S. stock night market volatility: Astera Labs fell 3.02% in after-hours trading, UBS raised the target price but failed to boost cautious sentiment **U.S. Stock Night Market Movements** Astera Labs fell 3.02% in the night market. Based on recent key news: 1. On July 27, Astera Labs' stock price dropped 3.02%. Analyst ratings show that the company is currently rated as a moderate buy, but it was not included in the top five stocks recommended by top analysts, which may have affected investor confidence and led to the stock price decline. Source: MarketBeat 2. On July 27, Astera Labs' stock price showed an increase of 1.88% in Benzinga Pro data, but overall market sentiment was cautious, which may have negatively impacted the stock price. Source: Benzinga 3. On June 29, UBS raised the target price for Astera Labs to $205 with a neutral rating, but this news did not significantly boost market confidence. Source: UBS Market sentiment is cautious, focusing on macro dynamics. **Stocks with High Trading Volume in the Industry** Micron Technology fell 3.14% in the night market. Based on recent key news: 1. On July 28, Micron Technology's stock price entered a bear market, having plummeted over 26% since its peak this year. This sell-off coincided with a general pullback in memory chip stocks, as investors took profits amid growing concerns about the sustainability of AI spending. Data indicates that implied volatility has risen to about 99%, with a put/call ratio of 1.19. Source: Benzinga 2. On July 28, the global memory chip sector faced significant sell-offs, with SK Hynix's American Depositary Receipts falling below the issue price less than a month after listing, and Micron Technology, SanDisk, and other memory chip stocks also declining. Analysts believe this round of adjustment is mainly influenced by heightened concerns over AI infrastructure investment. Source: Zhitong Finance 3. On July 25, Micron Technology's stock price plummeted 8.4% in late trading, as investors took profits after this week's rise, while increased competition from Chinese memory chip manufacturers put pressure on the stock. Source: Zhitong Finance Demand for memory chips is recovering, and industry competition is intensifying. SK Hynix fell 1.98% in the night market. Based on recent key news: 1. On July 27, SK Hynix's American Depositary Receipts fell to a new low since listing, as investors exited the overvalued semiconductor sector, with the stock price dropping below the issue price, closing at $143.02. The semiconductor sector is under pressure, with the Philadelphia Semiconductor Index falling to its lowest level since May 19. Source: Jinshi Data 2. On July 27, SK Hynix's stock price fluctuated, briefly dropping nearly 3% during the day, but ultimately closed up 3.24%. Analysts expect its second-quarter performance to be record-breaking, benefiting from rising semiconductor prices and one-time investment gains. Source: Viewpoint Network 3. On July 28, Swiss Pictet Hong Kong Fund reduced its holdings in SK Hynix, with the market concerned about whether its memory chips are taking too much profit, leading to doubts among investors about its profit extraction. Source: Golden Finance The semiconductor sector is under pressure, and market sentiment is cautious Nvidia fell 0.98% in after-hours trading. Based on recent key news: 4. On July 27, Nvidia advanced a $750 billion AI deal, raising market concerns about its debt burden, leading to a decline in stock price. Nvidia's credit default swap costs saw the largest historical increase, reflecting investors' worries about its financial risks. Source: Zhitong Finance 5. On July 28, Apple's market value surpassed Nvidia, becoming the world's most valuable company. Nvidia's stock price dropped nearly 5% as investors expressed concerns over the enormous costs of AI infrastructure development. Source: Jinshi Data 6. On July 28, Nvidia partnered with SK Group to advance an AI infrastructure plan with a total scale exceeding $500 billion, intensifying market concerns about its increased financing and guarantee obligations. Source: Jinshi Data The semiconductor sector is under overall pressure, and investors need to pay attention to risks ### Related Stocks - [ALAB.US](https://longbridge.com/en/quote/ALAB.US.md) - [MU.US](https://longbridge.com/en/quote/MU.US.md) - [SKHY.US](https://longbridge.com/en/quote/SKHY.US.md) - [NVDA.US](https://longbridge.com/en/quote/NVDA.US.md) ## Related News & Research - [Should you buy Astera Labs stock before Aug. 4?](https://longbridge.com/en/news/294139320.md) - [SK Hynix earnings will signal what’s next for memory chip boom](https://longbridge.com/en/news/294101860.md) - [Is Micron being squeezed out now that SK Hynix and Samsung have partnered with major chip companies?](https://longbridge.com/en/news/294400273.md) - [Mark Cuban and Michal Burry warn the AI boom is dangerously reliant on Nvidia](https://longbridge.com/en/news/294232031.md) - [Meet the Gen Z AI whiz at the center of a hedge fund meltdown](https://longbridge.com/en/news/294425537.md)