CNBC 快讯 5月15日 17:02 AI 基建"最大瓶颈"推动 DRAM ETF 创史上最快千亿规模纪录 'Biggest bottleneck in the AI buildup' fuels DRAM ETF to record The Roundhill Memory ETF (DRAM) just reached $10 billion in assets at the fastest pace ever for an exchange-traded fund… FG 100 读报告 →