CNBC 快讯 5月8日 13:24 Memory ETF热潮：AI驱动的高带宽内存需求主题投资指南 The hottest ETF since bitcoin-mania just added $1 billion in a day Roundhill Investment's Memory ETF (DRAM) tracking the red-hot memory sector has raised more than $5 billion since its Ap… FG 100 读报告 →