Quarter on quarter (QOQ) is a measuring technique that calculates the change between one fiscal quarter and the previous fiscal quarter. The term is similar to the year-over-year (YOY) measure, which compares the quarter of one year (such as the first quarter of 2024) to the same quarter of the previous year (the first quarter of 2023).

The measure gives investors and analysts an idea of how a company is growing over each quarter.