year-over-year

American  

[yeer-oh-ver-yeer] / ˈyɪərˈoʊ vərˈyɪər /

Or year over year

adverb

Accounting, Finance.

1. as compared with the corresponding figure 12 months earlier; involving or reckoned by such a comparison: YoY

   Exports fell 2 percent year over year in May.

   February rents for one-bedroom apartments saw a year-over-year increase of 6 percent.

2. in each year that passes after an initial investment, the start of an observed trend, etc.; annual or annually.

   The gain from this software purchase has been our best ROI year over year.

   Over the last decade, the year-over-year trend in inflation has strongly correlated with the year-over-year trend in GDP.

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Etymology

Origin of year-over-year

First recorded in 1790–1800, for an earlier sense

Example Sentences

The consensus call is for a 2.5% year-over-year increase.

From Barron's

Economists forecast a 2.9% year-over-year increase, matching the December figure.

From Barron's

For three straight years, the firm has seen double-digit year-over-year increases on its healthcare costs, said Morris.

From MarketWatch

He anticipates Marvell’s overall revenue in fiscal 2028 will grow close to 40% year-over-year, reaching about $15 billion.

From The Wall Street Journal

Murphy said the company anticipates year-over-year growth for its revenue “to accelerate” in the current fiscal year due to “continued strength in our data-center business.”

From MarketWatch