早盤活躍股 跳空開盤 $美國超微公司 (AMD.US)$Shares of the chipmaker rose 2% in premarket trading as investors digested the details of the new Instinct MI300X product that AMD unveiled on Wednesday afternoon. The chip is designed to take advantage of the boom in demand for computing power from artificial intelligence. $捷藍航空 (JBLU.US)$on Thursday narrowed its annual adjusted loss forecast, riding on st...