#纳斯达克加密ETF扩容 Measures are highly likely to increase the attention and accessibility of altcoins among traditional investors. As a well-known trading platform, Nasdaq's proposal to include XRP, SOL, ADA, and XLM in its cryptocurrency benchmark index signifies that these altcoins are moving into the mainstream financial sector, which could attract more interest from traditional investors. If approved by the U.S. SEC, the Hashdex ETF could invest in these cryptocurrencies, further increasing their liquidity and market depth, lowering the investment threshold, and enhancing accessibility. From a portfolio strategy perspective, if approved, it may be worth considering an appropriate allocation of these altcoins for diversified returns, but attention must be paid to their high volatility and regulatory uncertainty.