--- title: "Pre-market hot trades in US stocks: 374Water up 18.26% pre-market; Aehr Test up 7.20%" type: "News" locale: "en" url: "https://longbridge.com/en/news/284777060.md" description: "374Water pre-market up 18.26%; Aehr Test pre-market up 7.20%; Huachen AI Parking Management Tech pre-market up 81.90%; Fatpipe pre-market up 48.79%; Everspin Technology pre-market up 33.97%" datetime: "2026-04-30T13:02:43.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/284777060.md) - [en](https://longbridge.com/en/news/284777060.md) - [zh-HK](https://longbridge.com/zh-HK/news/284777060.md) --- # Pre-market hot trades in US stocks: 374Water up 18.26% pre-market; Aehr Test up 7.20% **Pre-market Hot Trades in US Stocks** 374Water pre-market rose 18.26%. Based on recent key news: 1. On April 30, 374Water successfully destroyed over 99.9% of PFAS "forever chemicals" in a U.S. military destruction demonstration project. This technological breakthrough significantly boosted market confidence in its environmental technology, driving up the stock price. Source: SCWO Stock News Increased demand for environmental technology, market attention. Aehr Test Systems pre-market rose 7.20%. Based on recent key news: 1. On April 29, Aehr Test Systems has performed excellently over the past five years, with an annualized return rate of 93.85%, and a market capitalization of $2.51 billion. The compound return rate of the company's stock over the past five years has significantly enhanced investors' cash growth, driving up the stock price. 2. On April 29, Aehr Test Systems' market performance exceeded the broader market, with an average annual return rate of 105.01% over the past five years. This strong financial performance has attracted more investor attention, further boosting the stock price. 3. On April 29, if investors had purchased $100 worth of Aehr Test Systems stock five years ago, it would now be worth $3,525.22. This significant investment return showcases the long-term growth potential of the company's stock, enhancing market confidence. Strong market performance, increased investor confidence. **Top Gainers in Pre-market US Stocks** Huachen AI Parking Management Tech, pre-market rose 81.90%, with no significant recent news. Trading is active, and capital flow is evident. Considering sector and industry trends, the stock shows significant volatility, and specific reasons need further observation. FatPipe pre-market rose 48.79%. Based on recent key news: 1. On April 29, FatPipe expanded its public sector procurement channels through a partnership with TD SYNNEX. This initiative aims to accelerate procurement of FatPipe SD-WAN and cybersecurity platforms by government agencies, K-12 school districts, and higher education clients, potentially driving up the stock price. 2. On April 28, FatPipe launched a VeloCloud replacement program, offering price matching, a 15% discount, and a 10% partner rebate. This program may have attracted more customers, enhancing market interest in its products. 3. On April 27, FatPipe announced its participation in the D. Boral Capital 2026 Global Conference and plans to hold one-on-one meetings with institutional investors. This news may have boosted investor confidence in the company's future development. Growing demand in the cybersecurity industry, increased market attention. Everspin Technologies pre-market rose 33.97%. Based on recent key news: 1. On April 29, Everspin Technologies released its first-quarter financial report, with a non-GAAP earnings per share of $0.11, exceeding expectations by $0.02, and revenue of $14.9 million, a year-on-year increase of 13.5%. The company also announced a $40 million defense contract, driving the stock price up. Source: Reuters 2. On April 29, Everspin Technologies projected second-quarter revenue between $15.5 million and $16.5 million, exceeding market expectations of $14.7 million. This optimistic outlook further boosted market confidence. Source: Business Wire 3. On April 29, analysts rated Everspin Technologies as "Buy," predicting a target price of $12.50 for the next 12 months, slightly below its latest closing price of $12.74. This rating reflects market confidence in its growth potential. 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