Silver, meanwhile, recovering some losses after its biggest one day drop in more than five years. Supply shortages keeping the metal on track for a monthly gain of close to a third. Bloomberg's Christina Aquino joins us now for more.Christine, before we get into the bigger trends, just could you talk a little bit about how much leverage, how much sort of fast money is behind some of the pretty violent moves that we've seen over the past couple of weeks. Well, Lisa, the short answer is a lot. There's been a ...