--- title: "U.S. stock night trading fluctuations: Coherent fell 3.32% in after-hours trading, and the signing of contracts cannot hide the high volatility of tech stocks" type: "News" locale: "en" url: "https://longbridge.com/en/news/291878291.md" description: "Coherent Corp. fell 3.32% in after-hours trading; Corning fell 4.20% with a trading volume of USD 18.67 million; Vishay Technology fell 2.10% with a trading volume of USD 782,300; Amphenol fell 1.26% with a trading volume of USD 512,100" datetime: "2026-07-07T04:56:29.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/291878291.md) - [en](https://longbridge.com/en/news/291878291.md) - [zh-HK](https://longbridge.com/zh-HK/news/291878291.md) --- # U.S. stock night trading fluctuations: Coherent fell 3.32% in after-hours trading, and the signing of contracts cannot hide the high volatility of tech stocks **U.S. Stock Night Market Movements** Coherent Corp. fell 3.32% in the night market. Based on recent key news: 1. On July 5, Coherent signed a three-year supply agreement with AXT, expecting enhanced momentum in AI optical communication business. This agreement will lead Coherent into a performance explosion period in the second half of the year, driving stock price fluctuations. 2. On July 6, the U.S. tech hardware sector experienced high volatility, with fund managers' allocation strategies affecting market sentiment. Investors focused on allocation tools for AI semiconductor hardware, leading to market fluctuations. 3. On July 5, the epitaxy factory benefited from increased demand for indium phosphide, with expected enhanced shipping momentum in the third quarter. This industry trend may affect Coherent's market performance. The tech hardware sector is highly volatile, requiring attention to risks. **Stocks with High Trading Volume in the Industry** Corning fell 4.20% in the night market. Based on recent key news: 1. On July 6, BOE and Corning's cooperation entered a substantive phase, enhancing manufacturing capacity and yield in glass-based packaging substrates and optical interconnect applications, driving stock price fluctuations. Source: BOE announcement. 2. On July 5, market rumors suggested that Zhongji Xuchuang's upstream materials were blocked, but the company clarified that the rumors were false, emphasizing its diversified technology layout could adapt to the impact of Corning's glass bridge technology. Source: C114. 3. On July 6, stock commentator Zheng Jiahua recommended Corning as a data center optical fiber concept stock, expecting capital inflows into AI infrastructure stocks in the third quarter, affecting stock price trends. Source: Stock commentator Zheng Jiahua's program on AI infrastructure demand growth and significant capital inflows. Vishay Technology fell 2.10% in the night market. Based on recent key news: 1. On July 6, Vishay Technology announced that holders of its 2.25% convertible senior bonds could exercise conversion options from July 5 to October 3. This news led to increased market demand for the company's stock, affecting stock price fluctuations. 2. On July 4, Vishay Technology's average annual return over the past decade was 14.6%, outperforming the market. Increased confidence from long-term investors drove the stock price up. 3. On July 6, Vishay Technology mentioned in its SEC filings that fluctuations in metal and material prices, changes in tax regulations, and other factors could affect the company's operations. These uncertainties increased market concerns about the company's future performance, leading to stock price fluctuations. There was a noticeable increase in demand for tech stocks and significant capital inflows. Amphenol fell 1.26% in the night market. Based on recent news: 1. On July 7, Apple's first foldable iPhone is expected to be released in the second half of the year, with Amphenol as one of the hinge suppliers for foldable devices, leading to increased market expectations for future order volumes and stock price fluctuations. Foxconn's Longhua factory in Shenzhen has begun expanding its workforce, entering the ramp-up preparation phase for mass production. 2. On July 5, MarketBeat pointed out that although Amphenol currently has a moderate buy rating among analysts, top analysts believe there are five stocks that are more worthy of purchase, affecting market confidence in Amphenol On July 6th, there is a possibility of delays and cancellations in NVIDIA's supply chain information. Although not officially confirmed, the market's uncertainty regarding the related supply chain has affected the performance of relevant stocks. The foldable device industry chain is evolving towards high precision and high reliability ### Related Stocks - [COHR.US](https://longbridge.com/en/quote/COHR.US.md) - [GLW.US](https://longbridge.com/en/quote/GLW.US.md) - [VSH.US](https://longbridge.com/en/quote/VSH.US.md) - [APH.US](https://longbridge.com/en/quote/APH.US.md) ## Related News & Research - [Octozi Raises $3M in Seed Funding to bring Agentic AI to Clinical Development](https://longbridge.com/en/news/291939959.md) - [My top 3 predictions for AI stocks in the second half](https://longbridge.com/en/news/291905658.md) - [Hyper-Targeted ETFs Take Over: Staking Solana, AI Chips and Leverage](https://longbridge.com/en/news/291718491.md) - [ZAWYA: NVIDIA unlocks AI compute at scale, inviting partners to power the AI infrastructure buildout](https://longbridge.com/en/news/292028421.md) - [Is Zoom (ZM) Quietly Recasting Its Core Identity Around Regulated, AI-Driven Customer Experience Workflows?](https://longbridge.com/en/news/291679394.md)