Currency spikes at 4pm London are not evidence of manipulation | FXTimes - Forex News, Commentaries, Technical Analysis, Education, Live Events, and more!: "The WM/Reuters fix is calculated by examining actual trades made over a one-minute period beginning 30 seconds before the top of the hour
Traders try to push through as many trades as possible in the few moments leading up to the fix
Price movements that happen just before the fix are often the result of everyone trying to squeeze through the door at the same time"
'via Blog this'