GBPUSD broke above 1.5268 resistance, indicating that the downtrend from 1.5785 (Dec 16, 2014 high) had completed at 1.4950 already. Further rise is still possible, and next target would be at 1.5500 area. Support levels are at 1.5100 and 1.4950, only break below these levels could trigger another fall towards 1.4500.
