【美股盘前，中概股多数上涨】5月14日讯，美股盘前，部分科技股上涨，超微电脑涨约8%，Raymond James给予该公司股票超配的初始评级；英伟达(NVDA.O)涨约2%，特斯拉(TSLA.O)涨约2%。中概股多数上涨，理想汽车(LI.O)涨约3%，百度(BIDU.O)涨约2%。

Core Viewpoint - The U.S. pre-market sees a majority of Chinese concept stocks rising, indicating positive market sentiment towards these companies [1] Group 1: U.S. Stock Market Performance - Some technology stocks are experiencing gains, with Advanced Micro Devices (AMD) rising approximately 8% after Raymond James initiated an overweight rating on the stock [1] - Nvidia (NVDA.O) and Tesla (TSLA.O) both saw an increase of about 2% [1] Group 2: Chinese Concept Stocks - A majority of Chinese concept stocks are also on the rise, with Li Auto (LI.O) increasing by around 3% and Baidu (BIDU.O) up by approximately 2% [1]