It stands for midpoint peg; a type of non-displayed order that is pegged to the average of the National Best...

An abbreviation for contra midpoint only plus; an order that is priced at the midpoint of the protected national best...

An order that is priced at the midpoint of the protected national best bid and offer (NBBO), while it is...

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

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 is displayed in an exchange's system and hence is visible to all market participants for their action....

An order that is displayed in an exchange's system and hence is visible to all market participants for their action....

An order that follows, and then is placed at, the best bid, when buying a security (a buy order), and...