The proposed measures are highly likely to increase the attention and accessibility of altcoins among traditional investors. Nasdaq, as a well-known trading platform, suggests including XRP, SOL, ADA, and XLM in the cryptocurrency benchmark index, which means these altcoins are moving towards the mainstream financial sector and can attract more attention from traditional investors. If approved by the SEC, the Hashdex ETF could invest in these cryptocurrencies, further increasing their liquidity and market depth, lowering investment thresholds, and enhancing accessibility. For portfolio strategies, if approved, it may be worth considering an appropriate allocation to these altcoins for diversified returns, but one must be cautious of their high volatility and regulatory uncertainties.