> For the complete documentation index, see [llms.txt](https://trylevel2.gitbook.io/getting-started/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://trylevel2.gitbook.io/getting-started/indicator-guides/aroon-oscillator.md). # Aroon Oscillator ### Overview The Aroon Oscillator is a trend-following indicator that uses aspects of the Aroon Indicator (Aroon Up and Aroon Down) to gauge the strength of a current trend and the likelihood that it will continue. It is calculated by subtracting Aroon down from Aroon up. A buy signal is produced when the Aroon Oscillator crosses above zero. A sell signal is produced when the indicator crosses below zero. {% hint style="info" %} **Create fully automated trading strategies using over 100 technical indicators in Market Dynamics. Head to the build page and add indicators using the "Add block" menu**. **Reach out to the team if you have any questions or need technical support.** {% endhint %}