Is there a distinct definition of a structural high / low that you use?
Does there have to be a specific amount of LL/LH or HL/HH close bars above / below on a specific time frame?
Also, as a bit of a side note, I have been sporadically checking mid-market prices on a few pairs over the weekend and was slightly surprised to see a fair bit of movement. Who / what continues to move price over the weekend?
