The future of investing is machines making decisions faster and better than humans. We are building that future.

My wife writes children's books about math. I run a math-based hedge fund. Our kids never had a chance to avoid numbers.

At Amazon in 1996, I helped build the recommendation engine. Turns out, recommending stocks is not that different from recommending books.

I won a silver medal at the Math Olympiad, worked at Amazon, and co-founded a hedge fund. Math has been the through-line for everything.

Two Sigma is a technology company that happens to trade financial markets. We have more engineers than traders.