BOX Participants

BOX Participants as of 2/27/2017:

ABN AMRO CLEARING CHICAGO LLC
APEX CLEARING CORPORATION
BARCLAYS CAPITAL INC.
BELVEDERE TRADING LLC
BMO CAPITAL MARKETS CORP.
BNP PARIBAS SECURITIES CORP.
CITADEL SECURITIES LLC
CITI ORDER ROUTING AND EXECUTION, LLC
CITIGROUP DERIVATIVES MARKETS INC.
COMPASS PROFESSIONAL SERVICES, LLC
CONVERGEX EXECUTION SOLUTIONS LLC
COR CLEARING LLC
CREDIT SUISSE SECURITIES (USA) LLC
CUTLER GROUP LLC
DART EXECUTIONS, LLC
DASH FINANCIAL LLC
DEUTSCHE BANK SECURITIES INC.
GLOBAL EXECUTION BROKERS, LP
GOLDMAN SACHS EXECUTION & CLEARING, L.P.
GOLDMAN, SACHS & CO.
GROUP ONE TRADING, L.P.
HARDCASTLE TRADING USA L.L.C.
HILLTOP SECURITIES INC.
HRT FINANCIAL LLC
IMC FINANCIAL MARKETS LLC
INSTINET, LLC
INTERACTIVE BROKERS LLC
ITG DERIVATIVES LLC.
JANE STREET CAPITAL, LLC
JANE STREET OPTIONS, LLC
J.P. MORGAN SECURITIES LLC
JEFFERIES LLC
KCG AMERICAS LLC
LEK SECURITIES CORPORATION
LIME BROKERAGE LLC
MERRILL LYNCH PROFESSIONAL CLEARING CORP.
MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED
MORGAN STANLEY & CO. LLC
NATIONAL FINANCIAL SERVICES LLC
NOMURA SECURITIES INTERNATIONAL, INC.
PEAK6 CAPITAL MANAGEMENT LLC
PERSHING LLC
QUANTLAB SECURITIES LP
RBC CAPITAL MARKETS, LLC
SG AMERICAS SECURITIES, LLC
SIMPLEX TRADING, LLC
SPOT TRADING LLC
SUSQUEHANNA SECURITIES
TIMBER HILL LLC
UBS FINANCIAL SERVICES INC.
UBS SECURITIES LLC
VIRTU FINANCIAL BD LLC
VOLANT LIQUIDITY TRADING LLC
WALLEYE TRADING LLC
WEDBUSH SECURITIES INC.
WELLS FARGO SECURITIES, LLC
WOLVERINE EXECUTION SERVICES, LLC
WOLVERINE TRADING, LLC