Fibonacci Channels are built using several parallel trend lines. To build this instrument, the channel having the width taken as a unit width is used. Then, parallel lines are drawn at the values equal to the Fibonacci Numbers, beginning with 0.618-fold size of the channel, then 1.000-fold, 1.618-fold, 2.618-fold, 4.236-fold, etc. As soon as the fifth wave finishes, correction in the direction opposite to the trend can be expected.
It is necessary to remember for a correct Fibonacci Channel building: base line limits the upper part of the channel when trend is ascending, and the lower part of it when trend is descending.