
Exchanges establish the minimum amount that the price can fluctuate upward or downward. This is known as the "tick" For example, each tick for grain is 0.25 cents per bushel. On a 5,000 bushel futures contract, that's $12.50. On a gold futures contract, the tick is 10 cents per ounce, which on a 100 ounce contract is $10. You'll want to familiarize yourself with the minimum price fluctuation--the tick size--for whatever futures contracts you plan to trade. And, of course, you'll need to know how a price change of any given amount will affect the value of the contract.