GDP: what it is and how the forex market reads it

Updated 2026-09-20

What gross domestic product measures, advance estimates and revisions, and how it affects currencies.

What it is

GDP measures the value of goods and services produced by an economy in a period. In quarterly data you look at the change from the previous quarter (in the United States the annualised rate is used) and from the same quarter a year earlier.

Estimates and revisions

Each quarter several estimates are released: an advance one, a second and a final. The first is the one that moves the market most; later revisions count less, except for large deviations. In the eurozone there is a flash estimate.

Impact on currencies

Stronger-than-expected growth strengthens expectations of higher rates and tends to support the currency; weaker growth raises recession risk and rate-cut expectations. GDP is a "lagging" figure: the market often gives more weight to leading indicators such as PMIs.

Frequently asked questions

Why does GDP move the market less than CPI or NFP?

Because it's a backward-looking figure: the market has already seen the employment, sales and production data that make it up, so it's often partly anticipated.