According to ChainCatcher, Ironlight Markets, a subsidiary of Ironlight Group, has received FINRA approval to operate a US-regulated Alternative Trading System (ATS) for trading traditional securities and tokenized securities. It is reported that Ironlight's ATS combines a centralized order book with atomic on-chain settlement, enabling real-time trading and clearing. The system allows banks, brokers, and registered investment advisors to connect via FIX or API interfaces, thereby bringing blockchain efficiency to regulated markets.