Developer's DescriptionBy ConceptforexUse Fibonacci sequences for price retracements and extensions.Fibonacci sequences and their usage in trading is very well known. They are primarily used to predict future support and resistance levels, both in pull-backs and trend extensions. This calculator has 3 main functions. Fib support and resistance levels for pull backs. Fib resistance levels or extensions. Fib T levels, based on previous market settlements. Help files are in the software.