--- title: "Pre-market hot trades in US stocks: Mastec pre-market down 14.47%; Lucas GC pre-market up 13.33%" type: "News" locale: "en" url: "https://longbridge.com/en/news/294478320.md" description: "Mastec pre-market down 14.47%; Lucas GC pre-market up 13.33%; Microbus pre-market up 242.00%; Replimune pre-market up 111.09%; Mangoceuticals pre-market up 84.60%" datetime: "2026-07-31T08:23:10.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/294478320.md) - [en](https://longbridge.com/en/news/294478320.md) - [zh-HK](https://longbridge.com/zh-HK/news/294478320.md) --- # Pre-market hot trades in US stocks: Mastec pre-market down 14.47%; Lucas GC pre-market up 13.33% **Pre-market Hot Trades in US Stocks** Mastec is down 14.47% in pre-market trading. Based on recent key news: 1. On July 31, MasTec announced that Alex Spiro has become a Class III director on the company's board. Spiro has over ten years of experience in corporate governance, securities issues, complex litigation, and strategic transactions. This appointment may raise market concerns about the company's governance structure, leading to stock price volatility. 2. On July 31, MasTec released its Q2 2026 financial report, showing a 23% increase in revenue, a 40% increase in adjusted EBITDA, and a record backlog of $21.4 billion. Despite strong performance, market expectations for future profitability and cash flow may lead to stock price fluctuations. 3. On July 31, MasTec revised its full-year 2026 financial outlook, expecting annual revenue of $18.2 billion and operating cash flow exceeding $1 billion. Although the outlook is optimistic, market concerns about the macroeconomic environment and industry competition may affect the stock price. The overall industry performance is strong, but the macroeconomic environment is complex. Lucas GC is up 13.33% in pre-market trading, with no significant news recently. Trading is active, and capital flows are evident. Considering sector and industry trends, the stock shows significant volatility, and specific reasons need further observation. **Top Gainers in Pre-market US Stocks** WeBus is up 242% in pre-market trading. Based on recent key news: 1. On July 30, Wetour Robotics announced a stock consolidation plan with a ratio of 1 to 100. This move aims to enhance stock price stability and will take effect on August 3. Following the announcement, market expectations for the company's stock changed, leading to price fluctuations. 2. On July 29, the SEC issued a statement reminding investors to be cautious with forward-looking statements. Such statements may affect investor confidence and subsequently impact the prices of related stocks. 3. On July 29, Fermi and Galaxy Digital faced challenges amid changes in cryptocurrency regulation, leading to fluctuations in investor interest in risk assets. This market environment may affect trading behavior of related stocks. Changes in cryptocurrency regulation impact market sentiment. Replimune is up 111.09% in pre-market trading. Based on recent key news: 1. On July 30, the FDA's Cellular, Tissue, and Gene Therapies Advisory Committee expressed support for Replimune's RP1 drug trial results in advanced melanoma. The committee's positive vote significantly boosted the stock price. Source: Reuters 2. On July 28, FDA reviewers raised questions about the efficacy of Replimune's RP1 drug, causing the stock price to drop 22.6% in pre-market trading. Review documents indicated that the trial lacked sufficient evidence to support the drug's efficacy. Source: Reuters On July 28, FDA staff stated that the clinical trial of RP1 in combination with nivolumab failed to provide substantial evidence, leading to a 21% drop in stock price. Source: Reuters The biotechnology industry faces regulatory challenges, with increased volatility. Mangoceuticals rose 84.60% in pre-market trading. There has been no significant news recently; trading is active, and capital flows are evident. Considering the sector and industry trends, the stock shows significant volatility, and the specific reasons need further observation. no\_news ### Related Stocks - [MTZ.US](https://longbridge.com/en/quote/MTZ.US.md) - [LGCL.US](https://longbridge.com/en/quote/LGCL.US.md) - [WETO.US](https://longbridge.com/en/quote/WETO.US.md) - [REPL.US](https://longbridge.com/en/quote/REPL.US.md) - [MGRX.US](https://longbridge.com/en/quote/MGRX.US.md) ## Related News & Research - [MasTec Announces Pricing of $650,000,000 of Senior Notes | MTZ Stock News](https://longbridge.com/en/news/295155205.md) - [MasTec director Alex Spiro files initial beneficial ownership statement](https://longbridge.com/en/news/294738658.md) - [Wellington Grp LLC Cuts Stock Position in MasTec, Inc. $MTZ](https://longbridge.com/en/news/294602841.md) - [The IRS is getting better at spotting crypto tax mistakes. Here's what it means for investors](https://longbridge.com/en/news/294967737.md) - [MasTec Stock And 2 Cash Flow Backed Industrial Picks Trading Below Fair Value](https://longbridge.com/en/news/294654169.md)