Brad Katsuyama

We built a market at IEX that does not sell certain types of technology advantages to high-frequency traders, and as a result, the high-frequency traders that didn't rely on buying those advantages trade on IEX.

When I have a creative insight, there is a high. I think back in the day, I made music as much as I did because it made me feel so good. I think you could argue that there is a creative addiction - but, you know, the healthy kind.