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There are two types of futures contracts, those that provide for physical delivery of a particular commodity of item and those which call for a cash settlement. The month during which delivery or settlement is to occur is specified. Thus, a July futures contract is one providing for delivery or settlement in July. It should be noted that even in the case of delivery-type futures contracts, very few actually result in delivery.* Not many speculators have the desire to take or make delivery of, say, 5,000 bushels of wheat, or 112,000 pounds of sugar, or a million dollars worth of U.S. Treasury bills for that matter. Rather, the vast majority of speculators in futures markets choose to realize their gains or losses by buying or selling offsetting futures contracts prior to the delivery date. Selling a contract that was previously purchased liquidates a futures position in exactly the same way, for example, that selling 100 shares of IBM stock liquidates an earlier purchase of 100 shares of IBM stock. Similarly, a futures contract that was initially sold can be liquidated by an offsetting purchase. In either case, gain or loss is the difference between the buying price and the selling price. Even hedgers generally don't make or take delivery. Most, like the jewelry manufacturer illustrated earlier, find it more convenient to liquidate their futures positions and (if they realize a gain) use the money to offset whatever adverse price change has occurred in the cash market.
* When delivery does occur, it is in the form of a negotiable instrument (such as a warehouse receipt) that evidences the holder's ownership of the commodity, at some designated location.
Price Discovery
Futures prices increase and decrease largely because of the myriad factors that influence buyers' and sellers' judgments about what a particular commodity will be worth at a given time in the future (anywhere from less than a month to more than two years). As new supply and demand developments occur and as new and more current information becomes available, these judgments are reassessed and the price of a particular futures contract may be bid upward or downward. The process of reassessment--of price discovery--is continuous. Thus, in January, the price of a July futures contract would reflect the consensus of buyers' and sellers' opinions at that time as to what the value of a commodity or item will be when the contract expires in July. On any given day, with the arrival of new or more accurate information, the price of the July futures contract might increase or decrease in response to changing expectations. Competitive price discovery is a major economic function--and, indeed, a major economic benefit--of futures trading. The trading floor of a futures exchange is where available information about the future value of a commodity or item is translated into the language of price. In summary, futures prices are an ever changing barometer of supply and demand and, in a dynamic market, the only certainty is that prices will change.
After the Closing Bell
Once a closing bell signals the end of a day's trading, the exchange's clearing organization matches each purchase made that day with its corresponding sale and tallies each member firm's gains or losses based on that day's price changes--a massive undertaking considering that nearly two-thirds of a million futures contracts are bought and sold on an average day. Each firm, in turn, calculates the gains and losses for each of its customers having futures contracts.
Gains and losses on futures contracts are not only calculated on a daily basis, they are credited and deducted on a daily basis. Thus, if a speculator were to have, say, a $300 profit as a result of the day's price changes, that amount would be immediately credited to his brokerage account and, unless required for other purposes, could be withdrawn. On the other hand, if the day's price changes had resulted in a $300 loss, his account would be immediately debited for that amount.
The process just described is known as a daily cash settlement and is an important feature of futures trading. As will be seen when we discuss margin requirements, it is also the reason a customer who incurs a loss on a futures position may be called on to deposit additional funds to his account on short notice.
Trading futures and options involve a substantial risk of loss and is not suitable for everyone. You should read the CFTC's standard risk disclosure before investing.