Marcos C. S. Carreira, a Ph.D candidate at École Polytechnique, is an experienced quantitative finance practitioner with more than 20 years of experience in Brazilian capital markets. Prior to his association to École Polytechnique, he contributed to risk management, derivatives pricing, exchange fees, microstructure and HFT solutions. Marcos also lectures for the MECAI Professional Masters course in Mathematical Finance at ICMC-USP and is a regular speaker at quantitative finance conferences.