A pattern day trader is a trader who makes four or more qualifying day trades in a five-day period. To qualify as a pattern day trader, the individual must meet two additional criteria. The person ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Diane Costagliola is a researcher, librarian, instructor, and writer who has published articles on personal finance, home buying, and foreclosure. Investopedia / Laura Porter A double top is an ...

Identifying an object by its shape or properties. For example, stock forecasting identifies trends by recognizing historical patterns. Although pattern recognition has been around for decades, it is ...