A crypto ETF is a regulated investment fund that tracks the price of one or more digital assets and trades on traditional stock exchanges like the NYSE or Nasdaq.Following the success of Bitcoin and Ethereum ETFs, the 2026 market now includes Solana ETFs and diversified Altcoin Baskets. ETFs serve as the primary vehicle for institutional capital and retirement funds (401k/IRA) to enter the Web3 space. This tag tracks regulatory approvals, AUM (Assets Under Management) inflows, and the impact of Wall Street on crypto liquidity.