In this blog post, we will walk through the process of building a stock trading bot using machine learning techniques. We will cover the following topics: Fetching historical stock data Feature engineering using technical indicators Training and evaluating machine learning models Generating buy/sell signals Executing trades Fetching Historical Stock Data We use the yfinance library to fetch historical stock data. The fetch_data function downloads the historical data for a single stock, while the fetch_data_multiple function downloads the data for multiple stocks.