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Sequenced Unit Header with 2 Messages Example

Table 1. Sequenced Unit Header
Hdr Length31 00 49 bytes, including header
Hdr Count02 2 messages to follow
Hdr Unit01Unit 1
Hdr Sequence01 00 00 00First message has sequence number 1
Table 2. Message 1: Add Order (Short)
Length 1A 26 bytes
Message format22 Add Order - Short
Time Offset 18 D2 06 00 447,000 ns since last Time Message
Order Id 05 40 5B 77 8F 56 1D 0B631WC4000005
Side Indicator42 Buy
Quantity E1 02737
CID 43 30 30 30 31 32 C00012
Price 01 00 0.01
Reserved 00 Reserved
Table 3. Message 2: Reduce Size (Short)
Length 10 16 bytes
Message format 26 Reduce Size - Short
Time OffsetE8 D9 06 00 449,000 ns since last Time Message
Order Id 05 40 5B 77 8F 56 1D 0B631WC4000005
Canceled Quantity E1 02 737
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Cboe Titanium U.S. Options Complex Multicast PITCH Specification - Sequenced Unit Header with 2 Messages | Cboe