The move is 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 means that these altcoins are making strides into the mainstream financial sector, which can attract more attention from traditional investors. If approved by the SEC, the Hashdex ETF could invest in these currencies, further increasing their liquidity and market depth, lowering investment thresholds, and enhancing accessibility. For portfolio strategies, if approved, consideration could be given to appropriately allocating these altcoins for diversified returns, but one must be mindful of their high volatility and regulatory uncertainty.