What are Fibonacci Retracements ?

Fibonacci Retracements

Fibonacci retracement levels are a sequence of numbers discovered by the noted mathematician Leonardo da Pisa in the 12th century. These numbers describe cycles found throughout nature; technical analysts use them to find pullbacks in the currency market.
After a significant price move, up or down, prices often "retrace" most or all of the original move. As prices retrace, support and resistance levels often occur at or near the Fibonacci Retracement levels. For currencies, that means retracements usually happen at 23.6%, 38.2%, 50% or 61.8% of the previous move.