Correlation is used as a formed of assurance when making a trade. It is used as a second and ultimate decision to open a trade depending on your trend direction. At major decision trading levels, you can find more than one pair or index following the direction according to your set up; therefore the need to have correlation is of absolute importance.
In this video, you will find how correlation was used to trade in the forex as well as one of our major indexes. Also, how a decision can be used in both, forex and index, or in just one market.
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