America has a new stock exchange. IEX, the company founded by the heroes of Michael Lewis' book "Flash Boys," is in the process of launching as an exchange after winning regulatory approval in July. This gradual process started on Friday, August 19 and involves slowly adding stocks until the market is fully up and running by September 2. The exchange-application process was a drawn out and ugly affair, degenerating into a "he said, he said" war of words. That debate centered on IEX's famous "speed bump," a 350-microsecond delay designed to level the playing field between hyperfast traders and slower-moving ... (full story)