• The US Dollar on the backfoot ahead of US CPI for July later on Wednesday.
• Massive risk-on on Tuesday crushed the Greenback across the board. 
• The US Dollar index trades in the mid-102.00 range and could trade in another ballpark by the closing bell. 

The US Dollar (USD) trades lower again, as measured by the US Dollar Index (DXY), in the European session on Wednesday following a 0.50% decline a day before. The US Dollar snapped under pressure after a massive wave of risk-on pushed US equities higher and sent US yields lower on Tuesday. The biggest reason for that move was weaker Producer Price Index (PPI) data on all fronts and segments in July, which hypes up the upcoming consumer inflation number with elevated expectations of coming in softer than expected. 

On the economic data front, the US Consumer Price Index (CPI) for July will be key on Wednesday. If the PPI data from Tuesday holds any relevance, traders will want to gear up for some volatility going into the US CPI number. Ahead of the US data, Europe will release the preliminary Gross Domestic Product (GDP) for the second quarter, which might also move the US Dollar Index.