As it was informed by "Market Leader (US)"
GBPUSD volatility for Jan 28th 2011
Yesterday the British Pound was testing the 1.6000 option barrier but without success, declining down to the 1.5900 option barrier. If the barrier is overcome, GBPUSD will probably fall down to 1.5750. The growth is still restrained by the option barrier located at 1.6000 while the closest support is at 1.5750. Independent dealers note that some Asian central banks are spotted on the selling side while there are big-scale stop orders seen around 1.5880. If the stops are executed GBPUSD will get another stimulus to decline.