A smoking gun is revealed on May 5th, when the silver price was busy falling from 48 to 34 per oz. The SLV fund had a single day volume of 300 million shares on that day in May, equal to its entire float. Conclude that naked shorting was taking place in coordinated fashion with a leveraged arbitrage between the fund and the COMEX using futures contracts. Leverage must be involved. Many fingers point to such arbitrage since the volumes are so great.