I hate to sound like a wet blanket, but I don't think this will amount to much. These class action law suits are equivalent to mosquito bites - a nuisance, but that's all. Did they try to manipulate silver markets? Probably, but almost everybody with deep pockets is trying to manipulate markets for their own benefit.

Regarding those infamous short positions, we don't know what they really represent. They may just be a hedge against long positions elsewhere in their portfolio. I'm pretty sure JPM employs people who can read a chart. A large unhedged short position on silver just doesn't make sense to me.