RE: Gap fill8 Dec 2015 11:58
Gap filling is actually nonsense. I think of it as a superstitious act, but it's something that traders have gotten used to like much of the Technical analysis predicitons. TA works because enough people take notice of it, and likewise many believe a gap fill will occur. The SP will almost inexplicable go back to the price that the Sp jumped up or down from to ensure all prices have been represented on the chart. Think of it of going back and dotting the i's.
This was probably more of a treeshake after such a climb recently, but I'm not surprised that it's been pulled down enough to ensure filling of the gap either. It can now climb again with confidence the gap is filled.