Message Format

FIX messages are ASCII formatted. The user will be provided with a SenderCompId and SenderSubId that must be sent on every message. The TargetCompId for all messages the user sends will be BATS, CBOE, CTWO, or EDGX. All messages the user receives will have the Sender and Target fields swapped.

Table 1. Message Format
Destination ExchangeTargetCompID
BZX OptionsBATS
Cboe Options (C1)CBOE
C2 OptionsCTWO
EDGX OptionsEDGX
Cboe Titanium U.S. Options FIX Specification | Cboe