Ok, but if you are a retail trader and the NBBO does not involve an IEX quote, then it seems like HFT will just screw you over just like before (assuming your broker just routes to the NBBO exchange). So I guess I should hope IEX takes close to 100% market share so that HFTs go extinct.
Haha I hope for the same. I love the idea of IEX, and think its understandable that their fees are high. They're just getting started, and I doubt they're making enough money yet to provide their services at a low cost.