Commodities subject to limits in rejected rule

A federal judge has struck down a rule adopted under the 2010 financial overhaul law that seeks to limit speculative trading of commodities futures.

The rule, adopted last year by the Commodity Futures Trading Commission, restricted the volume of futures contracts that financial investors can trade for 28 commodities. They are agricultural commodities, energy and metals that are traded on several U.S. exchanges:

—Agriculture: Corn, oats, soybeans, soybean meal, soybean oil, wheat, cotton, hard winter wheat, hard red spring wheat, milk, feeder cattle, lean hogs, live cattle, rice, cocoa, coffee, frozen orange juice concentrate, sugar no. 11, sugar no. 16.

—Energy: Natural gas, light sweet crude oil, gasoline, heating oil.

—Metals: Copper, gold, silver, palladium, platinum.