According to @EricBalchunas, demand for altcoin ETFs is likely to diminish the further a product is from BTC, implying that non-BTC crypto ETFs will attract fewer assets. Source: https://twitter.com/EricBalchunas/status/1960499949721846142 For traders, this view signals that expected AUM and secondary-market liquidity could taper as you move from BTC ETFs to more peripheral altcoin ETFs, increasing the risk of wider bid-ask spreads and slippage. Source: https://twitter.com/EricBalchunas/status/1960499949721846142 To control execution costs, prioritize ETFs with larger AUM and higher trading volume, as liquidity and volume are key drivers of spreads and trading efficiency. Source: https://www.sec.gov/files/ib_etf.pdf