Robinhood, a retail trading platform, has added four new digital assets to its portfolio, further diversifying its cryptocurrency offerings The inclusion of Solana (SOL), Cardano (ADA), memecoin Pepe (PEPE), and XRP was just revealed by the firm Together with Bitcoin (BTC), Ethereum (ETH), Dogecoin (DOGE), Chainlink (LINK), Avalanche (AVAX), and..