Trading Status Message Fields

The Trading Status message is used to indicate the current trading status of a security on a Cboe exchange. A Trading Status message will be sent whenever a security’s trading status changes.

A Trading Status message will be sent:

• for Regulatory Halts in any security as well as the Trading resumption for the same security.
• for Cboe Listed securities that are in a Quoting period for auctions.
• to indicate a Reg SHO price test is in effect.

  Table 1. Trading Status Message Fields

  Field Name	JSON	Value/Type	Description
  messageType	m	Alphanumeric	TS
  timestamp	ts	Integer	Timestamp of the matching engine trading status message emitted by the specified Market Center. Encoded as the number of nanoseconds since midnight (effective 11/02/26, since epoch).
  symbol	sy	Alphanumeric	Relevant symbol.
  marketCenter	mc	Alphanumeric	Y=BYX Z=BZX A=EDGA X=EDGX
  tradingStatus	h	Alphanumeric	A = Accepting Orders for Queuing H = Halted Q = Quote-Only S = Exchange Specific Suspension T = Trading
  regShoAction	rs	Alphanumeric	0=No price test in effect 1=Reg SHO price test restriction in effect