--- title: "U.S. stock movement quick report: Moolec Science surged 37.58%, Rambus plummeted 15.08%, attracting market attention" type: "News" locale: "en" url: "https://longbridge.com/en/news/284324205.md" description: "In the past hour, the overall market in the U.S. stock market has shown a clear divergence, with technology and pharmaceutical stocks performing particularly well. The strong rise of Moolec Science SA has attracted market attention, with an increase of 37.58%, indicating enthusiasm from short-term funds. On the other hand, individual stocks such as Rambus and Vivakor have experienced significant declines, dropping 15.08% and 13.10% respectively, reflecting fluctuations in market sentiment and caution among investors. Overall, it seems that short-term enthusiasm is switching between small-cap stocks and thematic stocks, with considerable volatility and complex investor sentiment. The notable increase of 37.58% in Moolec Science SA, the most active stock in the past hour, appears to be driven by market expectations for its new products, leading to a rapid influx of short-term funds and a warming of overall sentiment. In contrast, the decline of Rambus stands out sharply, with a drop of 15.08% reflecting market concerns about its future prospects and a clear outflow of funds. Strong stocks include: 1. KALA BIO: up 11.64%, driven by optimistic expectations for its new drug development. 2. Sumitomo Mitsui Financial: up 4.67%, performing well in the financial sector with stable fund inflows. 3. Mitsubishi UFJ Financial: up 4.07%, benefiting from the market's reassessment of financial stocks, with active short-term fund involvement" datetime: "2026-04-28T07:00:14.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/284324205.md) - [en](https://longbridge.com/en/news/284324205.md) - [zh-HK](https://longbridge.com/zh-HK/news/284324205.md) --- # U.S. stock movement quick report: Moolec Science surged 37.58%, Rambus plummeted 15.08%, attracting market attention **Market Overview of US Stocks in the Last Hour** The overall market shows a clear divergence, with technology and pharmaceutical stocks performing particularly well. The strong rise of Moolec Science SA has attracted market attention, with an increase of 37.58%, reflecting the enthusiasm of short-term funds. On the other hand, individual stocks like Rambus and Vivakor have experienced significant declines, dropping 15.08% and 13.10% respectively, indicating fluctuations in market sentiment and cautious capital. Overall, the short-term heat seems to be switching between small-cap stocks and thematic stocks, with large volatility and complex investor sentiment. **Stocks with the Largest Movements in the Last Hour** The rise of Moolec Science SA is remarkable, with a 37.58% increase seemingly driven by market expectations for its new products, leading to a rapid influx of short-term funds and a warming of overall sentiment. In contrast, the decline of Rambus stands out sharply, with a 15.08% drop reflecting market concerns about its future prospects and noticeable capital outflow. **Strong Stocks** 1. KALA BIO: Up 11.64%, driven by recent market optimism regarding its new drug development. 2. Sumitomo Mitsui Financial: Up 4.67%, performing well in the financial sector with stable capital inflow. 3. Mitsubishi UFJ Financial: Up 4.07%, benefiting from the market's reassessment of financial stocks, with active short-term capital involvement. **Stocks Under Pressure** 1. Rambus: Down 15.08%, market adjustments to its earnings expectations have triggered panic selling among investors. 2. Vivakor: Down 13.10%, lacking supportive positive news, short-term funds have chosen to exit. 3. POET Tech: Down 12.33%, market skepticism regarding its technological progress has put pressure on its stock price ### Related Stocks - [MLEC.US](https://longbridge.com/en/quote/MLEC.US.md) - [RMBS.US](https://longbridge.com/en/quote/RMBS.US.md) - [VIVK.US](https://longbridge.com/en/quote/VIVK.US.md) - [POET.US](https://longbridge.com/en/quote/POET.US.md) - [KALA.US](https://longbridge.com/en/quote/KALA.US.md) - [SMFG.US](https://longbridge.com/en/quote/SMFG.US.md) - [MUFG.US](https://longbridge.com/en/quote/MUFG.US.md) ## Related News & Research - [Why Poet Technologies stock skyrocketed this week](https://longbridge.com/en/news/286681063.md) - [Mitsubishi UFJ Financial Group Q4 Earnings Call Highlights](https://longbridge.com/en/news/286936677.md) - [Poet Technologies sank today -- is the stock a buy right now?](https://longbridge.com/en/news/286625118.md) - [POET Technologies Posts Higher Q1 2026 Revenue but Swings to Net Loss as Costs Surge](https://longbridge.com/en/news/286588263.md) - [POET Technologies GAAP EPS of -$0.08 misses by $0.03, revenue of $0.5M beats by $0.25M](https://longbridge.com/en/news/286510324.md)