工商管理英文文献翻译-期货基础 第4页
your position completely in order to make up for any losses it may have incurred on your behalf.
4.1 Leverage: The Double-Edged Sword
In the futures market, leverage refers to having control over large cash amounts of commodities with comparatively small levels of capital. In other words, with a relatively small amount of cash, you can enter into a futures contract that is worth much more than you initially have to pay (deposit into your margin account). It is said that in the futures market, more than any other form of investment, price changes are highly leveraged, meaning a small change in a futures price can translate into a huge gain or loss.
Futures positions are highly leveraged because the initial margins that are set by the exchanges are relatively small compared to the cash value of the contracts in question (which is part of the reason why the futures market is useful but also very risky). The smaller the margin in relation to the cash value of the futures contract, the higher the leverage. So for an initial margin of $5,000, you may be able to enter into a long position in a futures contract for 30,000 pounds of coffee valued at $50,000, which would be considered highly leveraged investments.
You already know that the futures market can be extremely risky and, therefore, not for the faint of heart. This should become more obvious once you understand the arithmetic of leverage. Highly leveraged investments can produce two results: great profits or greater losses.
As a result of leverage, if the price of the futures contract moves up even slightly, the profit gain will be large in comparison to the initial margin. However, if the price just inches downwards, that same high leverage will yield huge losses in comparison to the initial margin deposit. For example, say that in anticipation of a rise in stock prices across the board, you buy a futures contract with a margin deposit of $10,000, for an index currently standing at 1300. The value of the contract is worth $250 times the index (e.g. $250 x 1300 = $325,000), meaning that for every point gain or loss, $250 will be gained or lost.
If after a couple of months, the index realized a gain of 5%, this would mean the index gained 65 points to stand at 1365. In terms of money, this would mean that you as an investor earned a profit of $16,250 (65 points x $250); a profit of 162%!
On the other hand, if the index declined 5%, it would result in a monetary loss of $16,250 - a huge amount compared to the initial margin deposit made to obtain the contract. This means you still have to pay $6,250 out of your pocket to cover your losses. The fact that a small change of 5% to the index could result in such a large profit or loss to the investor (sometimes even more than the initial investment made) is the risky arithmetic of leverage. Consequently, while the value of a commodity or a financial instrument may not exhibit very much price volatility, the same percentage gains and losses are much more dramatic in futures contracts due to low margins and high leverage.
4.2 Pricing and Limits
As we mentioned before, contracts in the futures market are a result of competitive price discovery. Prices are quoted as they would be in the cash market: in dollars and cents or per unit (gold ounces, bushels, barrels, index points, percentages and so on).
Prices on futures contracts, however, have a minimum amount that they can move. These minimums are established by the futures exchanges and are known as “ticks.” For example, the minimum sum that a bushel of grain can move upwards or downwards in a day is a quarter of one U.S. cent. For futures investors, it's important to understand how the minimum price movement for each commodity will affect the size of the contract in question. If you had a grain contract for 3,000 bushels, a minimum of $7.50 (0.25 cents x 3,000) could be gained or lost on that particular contract in one day.
Futures prices also have a price change limit that determines the prices between which the contracts can trade on a daily basis. The price change limit is added to and

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