File Format

Each line of the registered securities upload file represents a rule containing a comma separated list of fields. The fields are defined as follows:

  • symbol - The symbol, such as MSFT.
  • action - The action is one of the following two values:
    • ADDED: Add symbol to list of symbols for which you will be a market maker.
    • REMOVED: Remove symbol from list of symbols for which you will be a market maker.
U.S. Equities Market Maker Specification - File Format | Cboe