The obvious answer to that is to look for opportunities to buy when a countries GDP is stronger than expected, or sell when it is weaker than expected. While this is true, it is also a simplistic view of trading the GDP report. That’s because there are actually three versions of the GDP data that are released; the advanced, the preliminary, and the final. Currency traders tend to focus most on the advanced GDP report because currency markets are very forward looking. However, currency traders will also make comparisons between the three releases. That means even when the final reading is stronger than markets expect a currency could fall if the advanced and preliminary reading were stronger still.