I spoke to a cousin of mine who works as a metals broker for a city firm (can't say too much here). He told me that copper and other metals have broken through support and there is a long way down before the next support level. The firm expects metals (copper) prices to fall much further and they are making a lot of money from knowing this.
Hence wouldn't we expect the miners that depend on these metals prices to also fall?
Maybe that's why the miners have fell the past few days. I'm thinking about getting in a short and looking at the bounce today it could be a good time to do this.