On May 13, according to market data and analysts, retail investors, whose enthusiasm for the semiconductor stock market remains undiminished, have propelled the Roundhill Memory ETF, which has been listed for only five weeks, to become one of the most successful ETF launches in history. Since its debut on April 2, the fund's assets under management have surpassed $6 billion. This rapid growth underscores Wall Street's strong expectations for a long-term supply-demand imbalance in artificial intelligence memory chips amid surging demand for data centers. Last Friday, after a significant rally in global chipmaker stocks, the fund saw a net inflow of $1 billion in a single day. Steve Sosnick, a market strategist at Interactive Brokers, noted that many investors view this fund as an alternative way to invest in related South Korean stocks, as directly investing in these stocks can be challenging.