Tuesday 4 March 2008

Fibonacci Retracement | SigmaForex

Wall Street Sign.

The Basic Theories

  • Dow Theory

The oldest theory in technical analysis states that prices fully reflect all existing information. Knowledge available to participants (traders, analysts, portfolio managers, market strategists and investors) is already discounted in the price action. Movements caused by unpredictable events such as acts of god will be contained within the overall trend. Technical analysis aims at studying price action to draw conclusions on future moves.

Developed primarily around stock market averages, the Dow Theory holds that prices progressed into wave patterns, which consisted of three types of magnitude—primary, secondary and minor. The time involved ranged from less than three weeks to over a year. The theory also identified retracement patterns, which are common levels by which trends pare their moves. Such retracements are 33%, 50% and 66%.

  • Fibonacci Retracement

This is a popular retracement series based on mathematical ratios arising from natural and man-made phenomena. It is used to determine how far a price has rebounded or backtracked from its underlying trend. The most important retracement levels are: 38.2%, 50% and 61.8%.


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