A professional who buys and sells grain on commission, for customers, through commodity exchange. Responsibilities include:

• Advises customers on probable price changes and factors which may affect prices, such as crop carryover, normal grain production and consumption, foreign and domestic crop conditions, and price differentials among various grades of grains.
• Notifies customer when additional margin is required because of price fluctuations and governmental regulations.
• May buy and sell grain futures for customer or brokerage firm and be designated Buyer, Grain.