I've been watching the copper and gold futures vs. FCX and SCCO, and occasionally I see these stock prices just completely ignore the metal prices. I was trying to explain why this was happening by flipping through stock indexes, related stocks, etc, but couldn't find a reason. There were no earnings, etc. What factors could I be missing in explaining stock movement opposite all of the index futures and even related stocks in a group? Is it just some big guy looking to get rid of his piece of a portfolio? I gambled and bought a little bit of the stocks while they were losing ground against the futures as an experiment, but I have a suspicion I am missing a piece of the information puzzle here.