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Posts Tagged ‘Oil Futures’

Forex Market Risks

October 1st, 2010

As to the trading and the risks connected with it here it is necessary to answer following questions.

1. What size of risk with which you are going to trade? That more risky: to trade oil futures or shares AMZN? Whether you remember that each market has the known size of risk based on historical volatility?

2. What profitableness (profit ratio) methods used by you?

3. What fidelity of methods used by you? What percent of profitable transactions?

4. What differential of profitableness between your system and system of a casual choice?

Let’s assume that a certain system of a casual choice will give on the average 50 % of profitable transactions and 50 % unprofitable. Thus the average size of positive and negative transactions is identical. If you traded on this system would be hardly happy as wouldn’t have profit (the commission and so forth isn’t considered).

On the other hand, you thus would be ahead of 80 % of traders which have started to trade together with you, because they have suffered a loss. Market volatility is compensated by success of a method. Moreover, market volatility it is not so important, as fidelity and profitableness of a method. We will assume now that you have a method which guesses a direction in 62 % of cases, and thus the size of profitable transactions in 2.5 times exceeds the size of the unprofitable.

For this concrete case it is known that use of 47 % of trading capital in each transaction will be the best ratio Risk/Reward.

It is visible that the question on the necessary capital directly is connected with method indicators. Certainly, when methods are tested for correctness and profitableness, they fix profit directly in a fixing point has arrived; such computations enter in an input point etc. Therefore it is essentially erroneous. It is necessary to correct the necessary capital taking into account real use of a method you. We will return to a method about which we spoke. It in the theory will give you of 62 % of correct transactions and the relation 2.5:1. In each transaction it is optimum to use 47 % of the capital.

But if you apply this method during some time, it can appear that you guess only 52 % of trades and their relation 2:1. And for this case use of 28 % of the capital will be optimum. Compare from “theoretical” 47 % and feel a difference!

From here it is visible to see where lay losses in the almost ideally disciplined trading on profitable model. At all not in a method (you can always find more effective methods) and in degree of efficiency of real use of methods which always can be improved…

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