US Preliminary GDP is a measurement of the production and growth of the economy. Analysts consider GDP one the most important indicators of economic activity, and publication of Preliminary GDP could have a significant impact on the movement of EUR/USD. A reading which is better than the market forecast is bullish for the dollar. Here are all the details, and 5 possible outcomes for EUR/USD. Published on Friday at 12:30 GMT. Indicator Background GDP reports are released quarterly, with Preliminary GDP following the Advance GDP report. Traders should pay particular attention to this economic indicator and treat it as ... (full story)