--- title: "Pre-market hot trades in US stocks: J-Star up 21.05% in pre-market; Monolithic Power down 3.39% in pre-market" type: "News" locale: "en" url: "https://longbridge.com/en/news/292325695.md" description: "J-Star pre-market rose 21.05%; Monolithic Power pre-market fell 3.39%; Global Mofy AI pre-market rose 194.05%; Zhibao Tech pre-market rose 80.61%; Haoxi Health Tech pre-market rose 61.79%" datetime: "2026-07-10T13:12:42.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/292325695.md) - [en](https://longbridge.com/en/news/292325695.md) - [zh-HK](https://longbridge.com/zh-HK/news/292325695.md) --- # Pre-market hot trades in US stocks: J-Star up 21.05% in pre-market; Monolithic Power down 3.39% in pre-market **Pre-market Hot Trades in US Stocks** J-Star is up 21.05% in pre-market trading. Based on recent key news: 1. On July 8, J-Star announced a 1-for-5 reverse stock split to meet Nasdaq's minimum bid requirement and maintain its listing status. This move led to a 21.05% increase in the stock price during pre-market trading. 2. On July 8, J-Star issued a statement emphasizing that any forward-looking statements only represent the situation on the date of release and explicitly stated that it does not undertake the obligation to update forward-looking statements. This statement aims to clarify the company's future development expectations and stabilize investor confidence. 3. On July 8, J-Star published a press release via GlobeNewswire detailing the specific arrangements and impacts of the reverse stock split, further enhancing market confidence in the company's future development. The reverse stock split helps restore its listing status. Monolithic Power is down 3.39% in pre-market trading. Based on recent key news: 1. On July 8, Monolithic Power experienced a sharp decline during the trading session, dropping 6.29% to $1261.48. This drop was mainly due to recent insider selling by company executives and a law firm's investigation into the company, which raised market concerns and undermined investor confidence. 2. On July 6, the U.S. Securities and Exchange Commission released a document regarding Monolithic Power. Although the specific content was not disclosed, such announcements typically raise market concerns about the company's compliance, further exacerbating stock price volatility. The market is sensitive to insider selling and investigations. **Top Gainers in Pre-market US Stocks** Global Mofy AI is up 194.05% in pre-market trading, with no significant recent news. The trading is active, with clear capital flow, and considering sector and industry trends, the stock shows significant volatility, with specific reasons needing further observation. Zhibao Tech is up 80.61% in pre-market trading. Based on recent key news: 1. On July 10, Zhibao Technology's stock price rose 105.41% in pre-market trading, reaching $0.6080. This increase is related to the company offering over 40 digital insurance products covering various fields such as travel, sports, logistics, utilities, and e-commerce. The company utilizes customer data, big data analysis, and artificial intelligence to develop and update its insurance products. Source: Benzinga 2. On July 8, Zhibao Technology released an initial Form 3 document regarding director Ma Junwei's shareholding status as of July 1. This information was published through the SEC's EDGAR system. Source: Public Technologies 3. On July 8, the company reminded investors that actual results may differ significantly from expected results and encouraged investors to review factors that may affect future results in the company's SEC registration statements and other documents. Source: Public Technologies The digital insurance industry is growing rapidly, attracting high market attention Haoxi Health Tech pre-market rose by 61.79%. Based on recent news, 4. On July 6, Haoxi Health Technology Ltd. released the latest announcement through the EDGAR system, which involved the company's future development plans and financial status. This announcement triggered a positive market reaction, driving the stock price significantly higher. 5. On July 6, the company disclosed new technological research and development achievements, which are expected to significantly enhance its market competitiveness and profitability. Investors expressed optimism about this news, further pushing up the stock price. 6. On July 6, analysts gave a positive evaluation of Haoxi Health Technology Ltd.'s future prospects, believing that the company is likely to achieve strong growth in the coming quarters. This evaluation boosted market confidence, leading to a surge in the stock price. 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