Fibonacci sequence is used widely in many different industries in the world which is why it may sound the most familiar to you out of all the technical analysis tools we have covered so far.
Leonard Fibonacci was an Italian mathematician (1200 AD) who discovered a simple sequence of numbers (Fibonacci numbers) that are used today in what is called Fibonacci retracement as a popular technical analysis tool.
Fibonacci Numbers are as follows; 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55 and so on.
More important than the sequence itself is the mathematical relationship between the numbers. It is the quotient of any two adjacent numbers in the sequence that is what’s important to us; each term in this sequence is the sum of the two preceding terms.
Fibonacci retracement works by taking two extreme points on a chart and dividing the vertical distance between the two points by what are known as the Fibonacci ratios. These ratios are 23.6%, 38.2%, 50%, 61.8% and 100% and the quotient of adjacent numbers in the sequence. Once these calculations have been done and the point defined they are noted on the graph using horizontal lines. These lines are interpreted by many traders as levels of support and resistance and are also used to help identify strategic places for transactions to be placed, and target prices or stop losses to be selected.