Leonardo Fibonacci was an Italian mathematician born in the 12th century. As you know, he discovered the "Fibonacci numbers", which are a sequence of numbers in which each subsequent number is the sum of the two previous numbers.

1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144 etc.

These numbers have a number of relationships, for example, the fact that any given number is about 1,618 times higher than the previous number. The interpretation of Fibonacci numbers in technical analysis involves changes in the direction of price movement, as a rule, near the Fibonacci lines. Four popular Fibonacci indicators are used in technical analysis: arcs, fans, correction levels and time zones.