Auction Summary Message Fields

Auction Summary messages are used to disseminate the results of an auction of a complex instrument. An Opening or Re-Opening Auction Summary message for each complex instrument is sent at the conclusion of its Opening or Re-Opening auction and represents Cboe opening price. Refer to the Cboe Titanium U.S. Options Complex Book Process for more information.

The Auction Summary message has the following format:

Table 1. Auction Summary
Field NameOffsetLengthType/(Value)Description
Length01BinaryLength of this message including this field.
Message Type110x96 Auction Summary Message
Time Offset24Time OffsetNanosecond offset from last unit timestamp.
Complex Instrument Id68Printable ASCIIComplex Instrument Id right padded with spaces.
Auction Type141Alphanumeric
  • G=GTH Opening(C1 Only)
  • O=RTH Opening(C1 Only)
  • H=Halt Re-Opening
Price158Binary Signed Long PriceAuction price
Quantity234BinaryCumulative instrument quantity executed during the auction
Total Length = 27 bytes
Cboe Titanium U.S. Options Complex Multicast PITCH Specification - Auction Summary | Cboe