The high probability of $ETH will 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 the cryptocurrency benchmark index means that these altcoins are making strides into the mainstream financial sector, attracting more attention from traditional investors. If approved by the SEC, the Hashdex ETF can invest in these cryptocurrencies, further increasing their liquidity and market depth, lowering investment barriers, and enhancing accessibility. For portfolio strategies, if approved, it may be considered to appropriately allocate these altcoins for diversified returns, but one must be mindful of their high volatility and regulatory uncertainties.