We're living in an age of commodities volatility.

The last ten years have seen a number of big price swings for many natural resources. Uranium ran from $10 to $140, and then back to $40. Oil hit $145 then plummeted back to $35. Copper went from $4 to $1.25 and then back to $3.50 (and now back below $3).

As the saying goes, if you don't like the price, wait five minutes.

These swings don't go unnoticed. Especially