--- title: "Pre-market hot trades in US stocks: Jowell Global up 14.35% pre-market; Banco Santander SA-Spon down 4.84% pre-market" type: "News" locale: "en" url: "https://longbridge.com/en/news/288074008.md" description: "Jowell Global pre-market rose 14.35%; Banco Santander SA-Spon pre-market fell 4.84%; Hub Cyber Security pre-market rose 258.09%; PRF Tech pre-market rose 237.01%; Olenox Industries pre-market rose 103.46%" datetime: "2026-05-29T13:12:36.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/288074008.md) - [en](https://longbridge.com/en/news/288074008.md) - [zh-HK](https://longbridge.com/zh-HK/news/288074008.md) --- # Pre-market hot trades in US stocks: Jowell Global up 14.35% pre-market; Banco Santander SA-Spon down 4.84% pre-market **Popular Pre-Market Trades in US Stocks** Jowell Global, pre-market up 14.35%, with 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. Banco Santander SA-Spon, pre-market down 4.84%. Based on recent news, 1. On May 27, Banco Santander SA-Spon announced the completion of a $1.5 billion convertible preferred securities issuance. These securities will serve as additional Tier 1 capital and will convert into stock if the common equity Tier 1 capital ratio falls below 5.125%. This news created uncertainty in the market, leading to a decline in stock price. 2. On May 27, Banco Santander SA-Spon launched a $850 million cash tender offer aimed at optimizing its Tier 1 capital and liquidity. Although this move is intended to enhance financial stability, the market expressed concerns about its short-term impact, putting pressure on the stock price. 3. On May 26, Banco Santander SA-Spon announced that its acquisition of Webster Financial had received shareholder approval, expected to be completed in the second half of 2026. While this news is favorable for long-term prospects, the market is concerned about integration risks in the short term, affecting stock performance. The overall performance of the banking sector has been weak recently, exacerbating concerns about capital adequacy. **Top Gainers in Pre-Market US Stocks** Hub Cyber Security, pre-market up 258.09%. Based on recent key news: 1. On May 29, Hub Cyber Security's market capitalization was only $135,900, showing extreme historical volatility. The stock's 52-week range is from $0.10 to $3,322.50, reflecting extreme historical volatility, leading to a significant pre-market increase of 258.09%. 2. On May 29, Hub Cyber Security's short interest reached 94.9%, indicating strong bearish sentiment in the market. Nevertheless, the stock rose 3.77% during regular trading hours, closing at $0.11, showing market optimism about its short-term trend. 3. On May 29, Hub Cyber Security's Relative Strength Index (RSI) was 28.71, indicating that the stock is in an oversold state. Technical analysis shows a negative price trend across all time frames, but the pre-market gain indicates market expectations for a potential rebound. Recent volatility in tech stocks requires attention to risk. PRF Technologies Ltd., pre-market up 237.01%. Based on recent key news: 1. On May 26, PRF Technologies Ltd. released important information via GlobeNewswire, leading to a significant increase in stock price. The company emphasized its listing status on the NASDAQ capital market and the volatility of its stock market price in the announcement, which triggered a positive response from investors, driving the stock price up 2. On May 28, PRF Technologies Ltd. detailed the risk factors affecting its business in its annual report, including the global economic environment and the political security situation in Israel. This information has increased investor confidence in the company's future market performance, further driving up the stock price. 3. On May 28, PRF Technologies Ltd.'s chairman Ehud Geller issued a statement emphasizing the company's ability to develop an active trading market. This statement bolstered market confidence in the company's stock, leading to a continued rise in the stock price. The global economic environment affects stock market volatility. Olenox Industries pre-market rose 103.46%. Based on recent key news: 1. On May 28, Olenox Industries signed a membership interest purchase agreement with CS Digital to acquire 100% of CS Digital's membership interests. This move is seen as an important strategy for the company to expand its digital business, significantly boosting the stock price. Source: SEC announcement 2. On May 29, Olenox received a delayed filing notice from Nasdaq for failing to submit its annual report for the year ending December 31, 2025. Nasdaq requires the company to submit a compliance plan or file the report by June 22 to address this issue. This news may exert short-term pressure on the stock price. Source: ACCESS Newswire 3. On May 28, the growing demand for AI and high-density computing infrastructure, along with related regulatory developments, may impact the company's future performance. Investors need to pay attention to the company's strategic adjustments in these areas. 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