--- title: "Pre-market hot trades in US stocks: Credo Tech pre-market down 3.05%; Applied Optoelectronics pre-market down 3.04%" type: "News" locale: "en" url: "https://longbridge.com/en/news/286909239.md" description: "Credo Tech fell 3.05% in pre-market; Applied Optoelectronics fell 3.04% in pre-market; Amesite rose 174.77% in pre-market; Rubico rose 174.62% in pre-market; Meitu Technology rose 81.16% in pre-market" datetime: "2026-05-19T12:07:31.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/286909239.md) - [en](https://longbridge.com/en/news/286909239.md) - [zh-HK](https://longbridge.com/zh-HK/news/286909239.md) --- # Pre-market hot trades in US stocks: Credo Tech pre-market down 3.05%; Applied Optoelectronics pre-market down 3.04% **Hot Pre-Market Trades in US Stocks** Credo Tech is down 3.05% in pre-market trading. Based on recent key news: 1. On May 18, Jefferies included Credo Technology in its "Preferred Stocks" list, showing confidence in the company's long-term growth potential. However, the market remains cautious about its short-term performance, leading to a pre-market decline of 3.05%. Source: Jefferies Research Report 2. On May 19, Jefferies updated its Franchise Picks list, emphasizing the growth potential of artificial intelligence infrastructure and digital advertising. Credo Technology, as a new member of the list, has attracted attention, but the market still has concerns about its short-term profitability. Source: Jefferies Research Report 3. Recently, the market's focus on high-growth technology and artificial intelligence companies has increased, with Credo Technology being closely watched by investors in this field. However, heightened market volatility has affected stock performance. Source: Market Observation Applied Optoelectronics is down 3.04% in pre-market trading. Based on recent key news: 1. On May 19, analysts maintained a hold rating on Applied Optoelectronics, not including it in the recommended buy list. Analysts believe that five other stocks offer better investment value, which may weaken investor confidence in Applied Optoelectronics, leading to a pre-market decline of 3.04%. Source: MarketBeat 2. On May 19, Trump's criticism of Taiwan's chip industry drew attention, emphasizing that the U.S. should revitalize its domestic semiconductor industry. This dynamic may affect market expectations for related companies like Applied Optoelectronics, leading to stock price fluctuations. Source: Zhitong Finance 3. On May 17, multiple analysts raised price expectations for other tech stocks, which may lead to capital flowing into those stocks, impacting the market performance of Applied Optoelectronics. Source: Zhitong Finance The semiconductor industry is facing intensified competition, and policy changes should be monitored. **Top Gainers in Pre-Market Trading of US Stocks** Amesite is up 174.77% in pre-market trading. Based on recent key news: 1. On May 18, Amesite CEO Ann Marie Sastry purchased 174,216 shares of common stock at a price of $1.44 per share. Her direct holdings increased to 1,049,647 shares. This news boosted market confidence in the company's management, driving the stock price up. 2. On May 19, Amesite secured a new corporate client involving approximately 2,700 patients, marking the company's largest deployment to date. This client will use the NurseMagic AI documentation system to streamline workflows, expected to save each nurse 16 hours of administrative burden per week. Following this announcement, Amesite's stock price surged 250% in pre-market trading On May 19th, Amesite director George Parmer purchased 243,902 shares of common stock at a price of $1.44 per share. His holdings increased to 566,962 shares. This news further enhanced market confidence in the company's management, driving the stock price up. The strategic transformation towards AI solutions presents a broad market outlook. Rubico, pre-market up 174.62%, with no significant news recently. Trading is active, and capital flow is evident. Considering sector and industry trends, the stock shows significant volatility, and the specific reasons need further observation. Meiwut Technology, pre-market up 81.16%, with no significant news recently. Trading is active, and capital flow is evident. 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