Quote from DeepFried:
Since their positive earnings release in early September, the stock has formed a sort of half-arch shape and it's rallied off the top of the arch today (10/3). I've often seen stocks rally off of that half-arch shape and, when they do, they seem to rally strongly. I'd look for something else to short right at the moment. GS will pull back eventually but I don't think that's going to happen in the immediate future.
There's probably some technical term for the rally off the half-arch but I don't know what it is. I remember seeing it in AET several years ago.