Last week the USD reached critical resistance. The US dollar index, an average of the greenback’s value against six top currencies, has now back to challenge key support above 86.40: the intersection of a principal level, acted frequently as near-term support/resistance, and a rising trend line from December’s lows. As a negative market reaction to US policy efforts and the an sinister G7 summit sparked a sell-off in risky assets, US Dollar have rallied convincingly 

If last week’s recession was corrective, that seemed to be a believable bottom before the bulls regain momentum. From the other hand, a daily close below 86.40 would make the possibility of a downward turn substantially more convincing.