David Blitz discusses research to improve existing strategies and explains how he designs new ones. “Our mission is to make good strategies even better and to design the next generation.” Head of Equity Research David Blitz has been at the forefront of quant investing since 1995 and is responsible for coordinating all quantitative equity research. Some of the key tools he has helped to develop are proprietary stock selection models and portfolio-optimization algorithms. He has also published numerous papers in peer-reviewed academic journals. Read the interview.