YOY
Year-over-year
Example
how did our sales do this quarter?
they're up 12% yoy
that's a pretty solid jump
yeah, it's our best growth in years
Related Slang
| MOM | Month-over-month |
| YTD | Year-to-date |
| H1 | First half |
| H2 | Second half |
| Q1 | First quarter |
| Q2 | Second quarter |
| Q3 | Third quarter |
| Q4 | Fourth quarter |
| YE | Year-ending |
| p/y | Per year |
| CEO | Chief executive officer |
| CFO | Chief financial officer |
Take the pop culture acronym challenge
YOY is financial shorthand for comparing a metric from one year to the same period in the previous year. Businesses, investors, and analysts often use "YOY" comparisons to measure growth or decline while accounting for seasonal fluctuations. For example, if a company reports that sales are up 10% YOY, it means sales increased by 10% compared to the same time last year. The term became widely used as financial reporting and market analysis became more data-driven in the late 20th century.
Today, "YOY" is a common term in earnings reports, business presentations, economic news, and marketing analytics (it is also used in other contexts, like sports performance or weather reports). You will most often hear it used by accountants, executives, investors, journalists, and anyone tracking performance over time. Since it's concise and easy to understand, YOY has become a staple of business communication, helping people quickly gauge whether a company, industry, or economy is moving in the right direction.