Marty Mannion

Marty Mannion is Co-Head of TD Securities Automated Trading LLC (TDSAT), the quantitative fixed income division of TD Securities.  TDSAT is a market leader in municipal and corporate bonds.  Mr. Mannion was previously co-CEO of Headlands Tech Global Markets, LLC (“HTGM”), where he helped build the firm’s fixed income trading business.  TD Bank acquired HTGM in July 2021.

Prior to joining Headlands, Mr. Mannion was Chief Operating Officer and Managing Director of Citadel Execution Services (“CES”), the U.S. equity and options market making division of Citadel Securities.  Mr. Mannion joined CES in 2004, and during his 8+ year tenure helped to build the division into one of the leading liquidity and execution providers in U.S. listed equities and equity options. 

Prior to joining Citadel in 2004, Mr. Mannion spent 4 years at the NASDAQ Stock Market in the Transaction Services group and 2 years at Economists, Inc. 

Mr. Mannion has served on several boards, including: DirectEdge Holdings, an electronic trading system for U.S.-listed equities (now part of BATS Global Markets); EASDAQ, which owned and operated Equiduct Systems Ltd., an electronic exchange for European equities; and NYSE Amex, the NYSE-operated U.S. listed equity options exchange.

Mr. Mannion holds a B.A. in International Affairs from George Washington University in Washington, DC.