There are Market Makers on IEX. Look at the Brokers at the end of this list: http://www.iextrading.com/services/ http://www.iextrading.com/services/ Virtu, SUN

There are Market Makers on IEX. Look at the Brokers at the end of this list: http://www.iextrading.com/services/ http://www.iextrading.com/services/ Virtu, SUN, etc. They are market makers.