According to Fox Business journalist Eleanor Terrett, the U.S. Securities and Exchange Commission (SEC) has asked issuers of Litecoin (LTC), XRP, Solana (SOL), Cardano (ADA), and Dogecoin (DOGE) exchange-traded funds (ETFs) to withdraw their 19b-4 filings.  This request follows the SEC’s recent approval of generic listing standards, which effectively replace the need for those filings with tithdrawals expected to start as early as this week.