Skip to main content
All CollectionsTrading
What are the AON, OPG, and CLO order instructions?
What are the AON, OPG, and CLO order instructions?
Updated over 2 months ago

These qualifiers help tailor the execution of your trades based on your specific needs and market conditions.

AON (All-or-None):

  • This qualifier ensures that no partial transaction is executed. The order must be filled entirely or not at all.

  • Applicable for orders greater than 100 shares.

  • Not available for NYSE-listed symbols.

OPG (At-the-Open):

  • Also known as Market-on-Open (MOO)

  • Requests the order to be executed at the official opening price of the primary listing exchange.

  • Orders must be received before 9:15 AM (ET).

  • After 9:28 AM, OPG orders cannot be edited or canceled.

  • Unfilled orders after the market opening are canceled.

CLO (At-the-Close):

  • Also known as Market-on-Close (MOC)

  • Requests the order to be executed as close to the closing price as possible.

  • Orders must be placed before 3:40 PM (ET).

  • CLO orders cannot be edited or canceled after 3:45 PM (ET).

  • Unfilled orders after the market close are canceled.

Did this answer your question?