As euro's decline from this week's high at 1.5819 has once again resumed, suggesting the early upmove from 1.5285 has ended there and downside bias remains for further weakness to 1.5440/50, however, oversold condition should prevent steep fall below pivotal support at 1.5396 today and risk has increased for a rebound later.  
On the upside, above 1.5580/90 would signal a termporary low has been formed and risk rebound to 1.5620/30.