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Learn to build real-time market scanners for identifying stocks in play using Python, Interactive Brokers API, and the ib_async library in this 21-minute tutorial. Start with understanding market scanner fundamentals and scanner presets before diving into practical implementation of a basic high open gap scanner. Explore how to combine scanners with order placement functionality and work with multiple clients while previewing real-time chart web applications. Master calculating gap percentages using asynchronous programming techniques and implement advanced filtering by market capitalization, price thresholds, and volume requirements. Discover "Gap and Go" filtering strategies to identify stocks moving up by specific percentages after market open, analyze intraday movement calculations using Apple as an example, and learn to access all available scans and filters. Build your own custom named scanner library and get insights into future development possibilities including web charting, FastAPI integration, trade logging, and webhook implementations. Requires Python programming environment and Interactive Brokers account setup as prerequisites.
