'"The tremors felt in silver started reverberating throughout the entire commodity patch,” said Richard J. Feltes, vice president of research of R. J. O’Brien, a large commodities broker. Silver ended the week down 27 percent. Crude oil was down 15 percent, and most other commodities also fell significantly.
The futures exchanges have been struggling for months to cope with the challenges posed by rapid price increases and head-snapping volatility in many commodities. . .
The financier Wilbur L. Ross Jr., known for his investments in distressed assets, said that speculation in commodities had obviously gotten a little out of hand. “It’s pretty clear that, for example, $10 to $20 of the price of a barrel of oil was mostly due to speculators and there were probably similar proportions in other commodities,” Mr. Ross said. . .
(T)here was no direct nudging from regulators to raise the silver margins, the CME said.
But regulators will soon have the power to lay down their own rules.'
http://www.nytimes.com/2011/05/09/business/economy/09commodities.html?_r=1&adxnnl=1&src=twrhp&pagewanted=1&adxnnlx=1304895704-+QsVPP7sT8HKOsnVClzWHQ