This man wants to upend the world of high-frequency trading

Eric Hunsader occupies an unusual position in the investing world. Founder of a software company called Nanex, he is a market data expert whose tools for spotting patterns and solving puzzles are indispensable to traders. But he’s also a vocal critic of market structures he believes punish investors, and he frequently assails high-frequency traders, exchanges and government regulators. (Market Watch)