SRMX - Chessman, looked for a "study" on thinkorswim using Fibonacci, and could not find one. But, if you look on you tube with fibonacci, you'll see many tutorials on how to use the fibonacci lines as a guide to future moves of the stock. Here's a link showing a retracement. How to Setup Fibonacci Retracements in Thinkorswim This can also be used for a "breakout" to the upside. Hope that helps you. Rock on SRMX!! Happy trading. Cheers, SRMX