 After a 13-month wait, on October 24, 2017, IEX Group Inc. received regulatory approval from the SEC to list companies.IEX said it would begin listings in early 2018, with a focus on getting companies to switch over from other stock exchanges, by undercutting listing fees of rivals.The exchange said that companies would be able to list for free for the first five years, before a flat annual rate of $50,000.