Drawing tools and annotations let you overlay Fibonacci studies and other geometric tools on stock charts to project potential support and resistance levels from historical price swings.
This sample combines ORCL OHLC bars with a CSCO closing-price line series on a shared plot, annotated with a Fibonacci Arc and a Fibonacci Fan. The arc projects curved support/resistance from an early price swing, while the fan draws ratio-based trend rays from the 2009 low. Custom HTML tooltips handle missing values gracefully, and range picker/selector controls allow focused historical analysis.
Follow the step-by-step Stock Chart Tutorial to learn how stock charts are built. See the Drawing Tools and Annotations documentation for all configuration options.