An order (dark order) that is pegged to execute at the floating mid-point of the national best bid and offer...

An order (limit order) that is not revealed to the public- i.e., it is not displayed in the market system....

An order (limit order) that is not revealed to the public- i.e., it is not displayed in the market system....

An order that rests in a venue (pool). It might be a dark order or a light order. Orders made...