If Sprott is doing it you can bet others are sure to follow. Those funds long bullion are taking profits and reinvesting in under valued miners. Considering fundamentals aren't moving the market, maybe the practice of buying as opposed to selling can.
http://www.zerohedge.com/article/so-much-sprott-silver-scare-every-dollar-pslv-sales-was-reinvested-silver-equities