The Source Code
The former trader started his own stock exchange, IEX, to address his concerns about high-frequency trading.
Marketplace Tech Blogs
A 350-millisecond delay can help long-term investors get equal footing with high-frequency traders, argues IEX's CEO.
Brad Katsuyama says some traders use tech to "know the horse race is over, and they're betting against people who still think the race is happening."