According to BlockBeats, Interactive Brokers, a U.S. online brokerage firm, has announced the addition of Solana (SOL), Cardano (ADA), Ripple (XRP), and Dogecoin (DOGE) to its trading platform. This expansion allows users to trade these cryptocurrencies alongside stocks, options, futures, forex, bonds, and mutual funds on the same platform. Previously, the platform supported Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC), and Bitcoin Cash (BCH).