Interactive Brokers Group has begun introducing stablecoin deposits for individual brokerage accounts, with a gradual rollout to some U.S. customers. Founded in 1978 and serving over 2 million accounts worldwide, the firm expands its adoption of blockchain-based payment options. This follows Chairman Thomas Peterffy’s earlier disclosure of stablecoin funding plans and builds on the brokerage’s cryptocurrency trading expansion and investment in crypto infrastructure provider ZeroHash.