I do not follow Fibs very closely but do follow them for commodities. If you go to 2015-12-12 and start from the bottom to the top, you will find that the 38% and 50% has worked out really really well. We are at one of those junctions right now. I am going to leave it on GLD chart for now. If take the more recent low to high with Fibs that one also is following it well. It is a good signalling system for GLD. Add that to your arsenal.