It stands for implementation shortfall; a measure of trading inefficiency- i.e., it measures the cost of trade implementation. For purchases...

It stands for decision price; the price of a security (e.g., a stock) that drives the decision of a market...

The price of a security (e.g., a stock) that drives the decision of a market participant to sell or buy...

A measure of trading inefficiency- i.e., it measures the cost of trade implementation. For purchases (long positions), it is equal...

A measure of trading inefficiency- i.e., it measures the cost of trade implementation. For purchases (long positions), it is equal...

The cost that results from the inability or lack of action to immediately complete the trade of buying or selling...