From Norgate data:
“A new US listing exchange is born! Investors Exchange (IEX) first listing is a brokerage firm: Interactive Brokers, which is transferring its listing from Nasdaq. Interactive Brokers is an index constituent of the S&P MidCap 400 and Russell 1000 and has a market cap of USD 23 billion. On Friday 5 Oct 2018, it will commence trading as IEX:IBKR.
