In its bid to become a full-fledged stock exchange, IEX Group Inc. plans to unveil a pricing system aimed at stealing market share from other exchanges and enticing big banks to shut down their so-called dark pools.
The upstart firm will allow broker-dealers, including most Wall Street banks, to trade for free when their buy and sell orders match up on the exchange, Chief Executive Brad Katsuyama said in an interview. The desire to…