[Kraken to Launch On-Chain Trading Engine xChange, Supporting 24/7 Tokenized Stock Trading] BlockBeats news, March 6, Kraken is launching an on-chain trading engine and unified execution layer named xChange for its xStocks tokenized assets, which will operate 24/7 on Ethereum and Solana. The platform will support direct trading of over 70 on-chain tokenized versions of U.S. stocks and ETFs, including popular trading targets such as Apple, Nvidia, Tesla, and the S&P 500.