A margin requirement is simply an amount of money required for collateral to place a trade, commonly used in the futures arena or in writing options. This amount is set by the exchanges on which the markets are being traded and is usually determined by the value and volatility of the underlying market. There are no set formulas among the exchanges to determine margin requirements. Each margin requirement is subject to change for any reason, at any time, without prior warning. For example, the required margin to trade the S&P 500 used to be $10,000. However, due to the volatility in that market, the margin requirement was somewhere around $20,000. The current value of one S&P contract is approximately $270,000. Therefore, you can benefit from the movement of a $270,000 instrument with only $20,000 in your account. The catch is that if the value decreases from $270,000 to $250,000, you will lose your entire $20,000.
There are a couple of things to remember when associating margin with trading and in particular, money management. Actually, there is only one thing to remember about that . . . don’t. The exchanges did not set these margins with the intention of helping you and me (the traders) out with our trading. They set the margin rates for their protection and their financial gain. That being the case, do not base any trading decision on margin requirements . . . ever. Simple as that. Rarely, if ever, will recommended money management techniques be more aggressive than the margin required to implement them.
The current margin requirement for trading a full bond contract is $3,000. If I open an account for $3,000 because that is the margin requirement, and then trade a contract in the bond market, the very day that position goes against me, my broker will be calling me for additional funds to place in the account. If I don’t send it, the position will be liquidated.
The question then is, what is the proper amount to start a trading account and still be able to apply proper money management principles? There is no magic answer to this question; however, there is a logical minimum. The main reason that new businesses fail is under capitalization. That is also the case for traders who get involved with leveraged instruments. Then there are those who would just as easily lose $500,000 as $5,000 if they had it. They fall under the category of being well capitalized but having absolutely no money management planning whatsoever.
You should consider three factors before deciding what amount to use to open an account. The first is not the margin, but the drawdown you are willing to permit with the strategy you have decided to trade. If the margin requirement for trading the bonds is $3,000 but the strategy will most likely suffer a drawdown of $5,000 through the course of trading, you’re dead in the water.
The second factor that should be considered is the margin. If the drawdown will most likely be at least $5,000 and the margin is $3,000, you know you cannot start the account for less than $8,000. Even if you were not going to consider the third factor, you would still want to give yourself some room for error in the drawdown expectation. This is explained later in this chapter in the section “Drawdowns.”
The third factor to consider is the ability to continue trading after realizing the expected drawdown. What good is it to fund the account with an amount equal to the expected drawdown plus margin requirements if this renders you incapable of continuing to trade once the drawdown is realized? I personally like to triple or even quadruple the margin plus expected drawdown figure.
Quadrupling this amount does several things. First, it allows me to stay in the game should my system or trading method fail to meet my profit expectations. I can regroup, reevaluate, and continue trading what I am currently trading or change methods. Second, it gives me the psychological ability to take all the trades, even while I am in a drawdown. Although this article does not address the subject of psychology and trading, the emotional effects of suffering a number of losing trades takes its toll on the trader’s ability to trade. The reason I do not deal with this subject is that I believe discussing it is a waste of time. If a trader is weak in this area (as I am) and cannot execute trades because the fear of losing causes second guessing, then the answer is to find someone to take the trades for you. Rather than spending countless hours and dollars on trying to find that event in your childhood that prevents you from taking the trades, delegate the weakness. Concentrate on the strengths and delegate the weakness. I know because it has worked for me for several years now.
The third thing that is gained from quadrupling the margin plus expected drawdown is that it gives a cushion for error. If I erroneously calculated the expected drawdown to be $5,000 when it should actually be expected at $10,000, this precaution keeps me from blowing myself out of the game.
This is simply a beginning point. The same amount of capital is not required to increase the risk on any given trade. Many traders determine an amount to begin with and then conclude that the best money management approach would be to increase the amount to risk on any given trade after the account has doubled. This is a completely illogical application of a money management strategy. Some traders believe that because they approach trading very conservatively their method, as illogical as it may be, is still the only way for them. They are wrong. Do not fall into this type of thinking.
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