Filled orders
A filled order, of fill for short, is simply an executed order in the markets. It is an order that has had its parameters filled, whether it was an order to buy or sell an asset, to open or close a position. For example, if you were to create an order to buy a stock at $45, and your order is accepted, it would be said to have been ‘filled’ and $45 would be the ‘fill price’.