RE:All in sustaining costs over a decadeMat... the recent history of Yamana was not that bad compared to the average and they have a low AISC of $800 and still dropped 38% since July 2014 while gold only dropped 11%. Usually the ratio of drop is only 2:1 mining to spot gold. I don't think fundamentals would explain this. It's pure sector manipulation. But eventually the manipulation changes to the upside.