An order to sell plus- that is, it shall be executed only on a "plus" or "zero-plus" tick. This involves...

An order to buy minus- that is, it shall be executed only on a "minus" or "zero-minus" tick. This involves...

A transaction/ trade that takes place at the same price level of a previous transaction/ trade, but in situation where...

A transaction/ trade that takes place at the same price level of a previous transaction/ trade, but in situation where...