# Module 3: Fibonacci Extensions Tool

> A complete, step-by-step guide showing you how to use the Fibonacci Extensions Tool in ThinkOrSwim to make a massive difference in your trading.

Page: https://tosindicators.com/fibonacci-trading/extensions  
Section: fibonacci-trading  
Access: free account  
Updated: 2025-08-26

## Related

- [Module 4: Fibonacci Clusters](https://tosindicators.com/fibonacci-trading/clusters)
- [Module 2: Fibonacci Retracements Tool](https://tosindicators.com/fibonacci-trading/retracements)
- [Module 1: Fibonacci Sequence and Trading](https://tosindicators.com/fibonacci-trading/fibonacci-sequence)