These exchanged funds (ETFs) purchase a variety of agricultural commodity futures, and increases in the price of wheat, corn, cattle, and other food prices will benefit shareholders of these securities.

FORBES: Trading Food Inflation

The CCI is a basket of 17 major raw commodity futures prices rolled into one composite index price.

FORBES: Connect

Any big price moves in the grain futures markets Friday may spill over into other commodity markets, including gold and silver.

FORBES: Comex Gold Up On Short Covering, Bargain Hunting, Bullish Outside Markets

In addition, lawmakers' recent pressure on the U.S. Commodity Futures Trading Commission to increase its oversight of energy markets might help curb any speculation contributing to the price run-up.

FORBES: Washington And Oil: First Do No Harm