Partner / Managing Director of Technology

Mr. Rosenthal is currently building the PEAK6 Stock marketing making business and managing technology for the PEAK6 businesses. Most recently, Mr. Rosenthal was the founder and co-chief executive officer of OptionsHouse. Prior to that, he was the chief technology officer for PEAK6, building its proprietary trading platforms, risk management, and back office from the ground up. Mr. Rosenthal grew the technology group from a staff of one in 1999 to a group of more than 50 people in 2006.

Mr. Rosenthal received a Bachelor of Arts in Mathematics from Hamilton College.