The crossover sessions in forex occur when trading in one timezone closes and another opens and can be a very dangerous time for traders. Why? Because this is where insider traps are set. The London open always is a fertile ground and there was a great example on the usd/jpy.
Heavy buying in the pair on the previous day resulted in a nice move higher in Asia with the pair moving into consolidation ahead of the London open.
Prior to the open the pair started to move higher on reasonable volume but reversed lower at the open on high volume until the hammer candle, again on high volume pushed the pair back towards the consolidation (the yellow line on the chart).
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