The week ahead builds towards Yellen's Jackson Hole speech ( 5 hours before Draghi's speech) in what looks like a vital event for the dollar. CAD was the top performer last week, while the pound lagged. CFTC positioning data showed less enthusiasm for USD shorts. We turn to US Treasury Secretary Mnuchin's speech on tax reform and Trump's speech on Afghanistan at 9 pm Eastern. The USDJPY Premium short was closed for 185-pip gain.