GBPUSD,for a long time, was in downtrend. But as shown in a weekly chart,I think this pair is going to change its trend from down to up by forming classical reverse H&S. The latest chief minimum value(right shoulder)1.50 is almost the same as left shoulder, and is located about 62.8% of 1.46-1.58. After one more down to 1.50 and forming W bottom, this pair will uptrend.