PRICE RATE OF CHANGE - ROC

A technical indicator that measures the percentage change between the most recent price and the price "n" periods in the past. It is calculated by using the following formula:

(Closing Price Today - Closing Price "n" Periods Ago) / Closing Price "n" Periods Ago

ROC is classed as a price momentum indicator or a velocity indicator because it measures the rate of change or the strength of momentum of change.