Euro's decline from 1.3395 signals the rise from 1.3090 has formed a top earlier this week and although downside bias remains for one more fall to 1.3150/60, however, oversold condition should prevent steep fall below pivotal support at 1.3126 and yield a rebound later.  
On the upside, only above 1.3303/07 would indicate a low is in place and bring gain to 1.3340/50 but aforesaid resistance at 1.3395 should hold on first testing.