ABN AMRO Clearing USA LLC (Dutch — Algemene Bank Nederland, Amsterdamsche en Rotterdamsche Bank)
Archipelago Securities L.L.C.
BNP Paribas Securities Corp. (Banque Nationale de Paris)
Barclays Capital Inc.
Bernstein Institutional Services LLC
BofA Securities, Inc. (Bank of America)
Citadel Securities LLC
Citigroup Global Markets Inc.
Clear Street LLC
Cowen and Company, LLC
DRW Securities, LLC (Donald R. Wilson)
Dash Financial Technologies LLC
GTS Securities LLC (Global Trading Systems)
Goldman Sachs & Co. LLC
HRT Financial LP (Hudson River Trading)
IEX Services LLC (Investors Exchange)
Industrial and Commercial Bank of China Financial Services LLC
Instinet, LLC
Interactive Brokers LLC
J.P. Morgan Securities LLC
Jane Street Capital, LLC
Jane Street Execution Services, LLC
Jefferies LLC
Jump Trading, LLC
Morgan Stanley & Co. LLC
Nasdaq Execution Services, LLC
RBC Capital Markets, LLC (Canadian — Royal Bank of Canada)
SG Americas Securities, LLC (French— Societe Generale)
Tradebot Systems, Inc. (Dave Cummings)
UBS Securities LLC (Swiss — Union Bank of Switzerland)
Virtu Americas LLC
Wedbush Securities Inc.
Wells Fargo Securities, LLC