Fibonacci levels
This indicator allows you to display the most important Fibonacci levels in your chart. The seven   major Fibonacci levels are: 0% - 23,6% - 38,2% - 50% - 61,8% - 76,4% - 100%.   Some traders limit themselves to these four Fibonacci   levels: 0% - 23,6% - 61,8% - 100%. The Fibonacci levels can be displayed in the   chart in two different ways. The first possibility is from a chosen point in the   past up to today. The second possibility is between two chosen points in the   past.
            
            This example shows the seven Fibonacci levels. The trader opted to calculate the   levels 20 periods back starting from the current candle.
          

This example shows the four Fibonacci   levels. The trader opted to calculate them over a period starting 8 candles back   from the current candle and with a span of 20 candles.
        
          

Tip: put the parameter "show_level" on 1 to see four Fibonacci levels; put   "show_level" on 2 to see all seven Fibonacci levels.
            Tip: put "x2" on 0 to   start from the current candle.