I trade billions during the day and play piano at night. Mathematics and music are both about finding patterns in chaos.

The Volcker Rule forced us out of Morgan Stanley. It was the best thing that ever happened to PDT.

Risk management is not about avoiding risk. It is about understanding exactly how much risk you are taking at every moment.

Statistical arbitrage is not about predicting the future. It is about pricing the present more accurately than everyone else.

I once opened for James Brown. That was harder than managing a $5 billion portfolio.