Virtu Financial

Hudson River Trading

Financial Services

New York, NY

Jane Street

Financial Services

New York, NY

Jump Trading Group

Financial Services

Chicago, Illinois

KCG Holdings, Inc.

Capital Markets

New York, NY

IMC Trading

Financial Services

Amsterdam, Noord Holland

DRW

Financial Services

Chicago, IL

Optiver

Financial Services

Flow Traders

Financial Services

Tower Research Capital

Financial Services

NEW YORK, NY

Five Rings

Financial Services