--- title: "U.S. stock market midday update: The outlook for the quantum computing industry is optimistic, yet Xanadu Quantum Tech fell 17.30%, raising market concerns" type: "News" locale: "zh-HK" url: "https://longbridge.com/zh-HK/news/281058052.md" description: "Xanadu Quantum Tech - B fell 17.30%; SanDisk fell 6.01%, with a transaction volume of USD 7.862 billion; Apple fell 0.74%, with a transaction volume of USD 3.445 billion; Western Digital fell 8.02%, with a transaction volume of USD 1.329 billion; Dell Technologies - C fell 2.75%, with a market value of USD 107.8 billion" datetime: "2026-03-30T16:47:55.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/281058052.md) - [en](https://longbridge.com/en/news/281058052.md) - [zh-HK](https://longbridge.com/zh-HK/news/281058052.md) --- > 支持的語言: [简体中文](https://longbridge.com/zh-CN/news/281058052.md) | [English](https://longbridge.com/en/news/281058052.md) # U.S. stock market midday update: The outlook for the quantum computing industry is optimistic, yet Xanadu Quantum Tech fell 17.30%, raising market concerns **U.S. Stock Market Midday Update** Xanadu Quantum Tech - B fell 17.30%. Based on recent key news: 1. On March 30, the quantum computing company sought to go public amid a turbulent market, as the industry moves towards commercialization. This move has raised market uncertainty about the future development of the industry, leading to a significant drop in Xanadu Quantum Tech's stock price. Source: CNBC 2. On March 30, Marc Einstein, Research Director at Counterpoint Research, stated that quantum computers will fundamentally change the way we compute. Although the era of personal quantum computers may still be decades away, the future of large organizations providing quantum computing services may arrive sooner. This outlook has sparked optimism in the market regarding the industry's prospects, but has failed to support Xanadu Quantum Tech's stock price in the short term. Source: CNBC The quantum computing industry is in the early stages of commercialization, with significant market volatility. **Top Stocks by Industry Trading Volume** SanDisk fell 6.01%. Based on recent news: 1. On March 29, Google's latest research indicated that the AI hardware shortage issue will ease, leading to a nearly $100 billion evaporation in the market value of memory chip stocks. SanDisk's market value evaporated by about $15 billion, causing a sharp decline in its stock price. 2. On March 28, Mizuho Technology experts suggested that the pullback in memory stocks is an "entry opportunity," rather than a turning point for stock prices. Despite the cyclical volatility in the memory industry, the recent sell-off aligns with familiar patterns. 3. On March 28, an HSBC research report pointed out that Google's TurboQuant technology has accelerated expectations for future downturn cycles, leading to profit-taking and some corrections. Demand in the memory industry remains strong, with ongoing support from AI spending. Apple fell 0.74%, with increased trading volume. Based on recent key news: 1. On March 30, the UK government fined Apple's subsidiary £390,000 for violating Russian sanctions. This incident increases Apple's compliance risks and may affect its reputation in the European market. 2. On March 30, Apple plans to open Siri to competitors' AI services, marking a shift in its AI strategy towards greater flexibility. This move may enhance Apple's competitiveness in the AI field and attract more investor attention. 3. On March 30, Apple partnered with Yangtze Memory Technologies to use domestic memory technology in iPhones sold in the Chinese market. This decision helps reduce costs and enhance market competitiveness while avoiding pressure from U.S. policies. Tech stocks have recently accelerated their decline, with increased market volatility. Western Digital fell 8.02%. Based on recent key news: 1. On March 30, DDR5 memory prices plummeted by 29%, primarily influenced by Google's new TurboQuant technology, with market concerns over reduced AI demand leading to a sharp decline in Western Digital's stock price. Morgan Stanley noted that the market is underestimating the potential growth from efficiency improvements, believing this wave of price cuts is a short-term sell-off 2. On March 29, influenced by Google's latest research, the market value of U.S. memory chip stocks evaporated by nearly $100 billion this week. The research pointed out that the AI hardware shortage issue will be alleviated, leading to a decline in Western Digital's stock price. 3. On March 30, Omdia's latest research showed that U.S. PC shipments are expected to grow by 3% year-on-year in the fourth quarter of 2025, but due to the severe constraints on the supply of memory and storage products, shipments are expected to decline by 13% year-on-year in 2026. The storage market is experiencing price fluctuations alongside growing demand. **Stocks ranked at the top of the industry market value** Dell Technologies - C fell by 2.75%. Based on recent key news: 1. On March 30, Dell announced layoffs of approximately 11,000 employees, impacting company operations. The layoffs mainly stem from organizational restructuring and cost adjustments related to business modernization, leading to a decline in stock price. 2. On March 30, Dell's investments and transformation in the AI field have attracted market attention. The company has deployed over 4,000 enterprise AI factories, driving AI business growth to $25 billion, resulting in increased stock price volatility. 3. On March 28, analyst Daryanani held an optimistic view on Dell's stock, believing there is potential for continued upward movement. Analyst ratings have a positive impact on the stock price. 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