Sfox, a cryptocurrency broker, has announced that it will now offer commission-free staking for a range of cryptocurrencies. Staking is a process by which cryptocurrency holders can earn rewards by validating transactions on a blockchain. Sfox's new staking service will be offered from regulated custody, which means that users' funds will be held in secure and insured accounts. The new service will be available for a number of popular cryptocurrencies, including Ethereum, Cardano, and Solana. Users will be able to stake their coins directly from their Sfox account, and they will receive rewards in the form of the same cryptocurrency that they are staking.