Bitnomial, a Chicago-based derivatives exchange and clearinghouse regulated by the Commodity Futures Trading Commission (CFTC), has become the first U.S. registered derivatives clearing organization to accept stablecoins as margin collateral, the company said in a press release Tuesday. The firm announced support for Ripple USD (RLUSD) and XRP margin deposits on Tuesday, marking a new step in its expansion into digital asset-based collateral. The move builds on Bitnomial’s September 2025 launch of crypto ...